Da Costa’s Syndrome – three versions

Brainwashing is a process where some information is washed away so that readers draw a conclusion on the basis of what remains, and believe it to be the truth, and will even defend the people who misled them with a vengence.


I tried to provide Wikipedia readers with correct and verifiable information about a medical condition called Da Costa’s syndrome, but two anonymous editors had other ideas. You can see what happened for yourself by reading three versions of the article.

Essentially they saturated the page with psychiatric labels, links, and references, but they kept the entirely physical treatment method which I wrote which is to sit up straight, stand up slowly,  avoid stooping, wear loose clothing, and exercise at a steady rate, and it was still there on October 14th 2014, almost six years after they banned me. See here 

They also refused to include a painting of the typical patient who is thin and stooped, with a long, narrow or flat chest.

The three versions of Da Costa’s syndrome

1. The first – four lines of text which was in Wikipedia before I started improving it. No better than a dictionary.

2. The second – the version which I provided which presents all points of view from 136 years of medical research history.

3. The third – the watered down version provided by my two critics with their psychiatric bias produced by deleting 131 years of scientific evidence from history.

The first version had no references at all, my version had 65 top quality references to verify the facts, and the version provided by my two critics had only 18 references which they chose to load their bias.


In 1975 I had many health problems which were getting worse despite treatment, and yet my doctor told me that nothing was evident on x-rays, so I was left with the diagnosis that there was nothing physically wrong with me. That put me in a position where I had to resign from my government job, and was essentially denied my entitlements to superannuation benefits.

I then began to study my own symptoms in great detail to determine ways of relieving them, and to study the medical literature to find the cause. I eventually found evidence of a physical or physiological basis for all of them. In particular the chest aches could be relieved by injecting pain killing drugs into the correct area between the ribs, the breathlessness was due to abnormal function of the breathing muscles, and the fatigue was due to inefficient blood flow to the brain. I also found that in my case the ailment was related to my physique and the sedentary nature of my work. I later found a 20 year follow up study which showed that in most cases there was no cure and that patients had to manage the ailment the best way they could.

My reason for publishing those findings was to help other patients understand and manage those health problems better, and to help them avoid being branded with the labels of malingerer or psychiatric illness, and to enable them to prevent being swindled out of whatever legal entitlements they had.

However, about 32 years later I joined Wikipedia and when I began adding such information to a page called Da Costa’s syndrome two anonymous editors put me on a “watch list” and began systematically deleting all of the evidence of physical cause and filling the page with jargon and psychiatric labels, and linking it to hundreds of others through ICD-9 and ICD-10 classifications, and the categories of “Anxiety disorders” and “Somatoform disorders” (imaginary ailments with no physical basis).

They also argued and denied that it was related to the modern label of the Chronic Fatigue Syndrome.

The four line unreferenced version of the article which was in Wikipedia before I started can be seen below, followed by the full version of the article which I provided, and is then followed by a copy of the watered down and jargonistic, and falsified version of medical research history which was provided by those two editors.

The two anonymous Wikipedia editors leave the impression that they are being highly paid by an organisation which wants to continue swindling genuinely ill patients out of the entitlements in order to keep their liabilities and costs to a minimum, and the profits to a maximum at the patients expense.

The entire text of Wikipedia’s Da Costa’s syndrome before I started

An article about Da Costa’s syndrome had been in Wikipedia for eighteen months from 15-5-2006 here. My main critic had already contributed to it and the very small version of 17-10-2007, which had no references at all, can be seen in the window below and verified here.

“Da Costa’s Syndrome is a type of anxiety disorder first observed in soldiers in the American Civil War. It causes symptoms similar to heart disease but, upon examination, nothing is found to be physically wrong with the patient. The symptoms usually consist of fatigueupon exertion, combined with shortness of breath, palpitations, sweating, chest pain, shaking, and, less commonly, fainting. The symptoms may increase whilst exercising, and it is thought to be caused partly by hyperventilation.

Related: Neurasthenia, Orthostatic intolerance, Hyperventilation syndrome, Chronic fatigue syndrome, Soldier’s heart.

This disease article is a stub. You can help Wikipedia by expanding it.” (end of article)

The complete text that I provided, which includes scientific ideas and discoveries from 136 years of medical research history

I began adding to it on 8-12-2007 here, and added the final version on 27th January 2009 here.

1 Da Costa’s Syndrome

2 History
2.1 1863-1899
2.2 1900-1919
2.3 1920-1949
2.4 1950-1979
2.5 1980-1999
2.6 The relevance to modern labelling terminology between 2000-2008

3 Symptoms
4 Predisposing factors
5 Onset of symptoms
6 Causes
7 General Physical Characteristics
8 Physiological Abnormalities related to exertion
9 Treatment
10 Prevention
11 Alternative names for Da Costa’s syndro
12 Differential Diagnosis
13 Related Conditions
14 Portrait of a typical Da Costa’s syndrome patient
15 References

Da Costa’s Syndrome

Da Costa’s Syndrome is a disorder of unknown origin[1][2][3] which involves a set of symptoms that include left-sided chest pains, palpitations, breathlessness, faintness, dizziness and fatigue occurring exclusively in respnse to physical exertion in some patients,[4] but in most cases the symptoms occur to a lesser degree at other times. The tendency to excessive tiredness during the day, and a reduced capacity for exertion[5][6], are the most prominent complaints.

The condition was first identified by J.M.DaCosta who observed it in soldiers during the American Civil War and later studied 300 patients to distinguish it from heart disease which has similar symptoms.[7] Since then there have been many heated disputes and controversies[1][8][2][9][10] about it being heart disease or not[1], real or imaginary[1][11], genuine or malingering[12], and physical or mental[13], and more than 80 different theories and labels have been proposed and scientifically investigated[14][15]. Da Costa called it “irritable heart” but the most appropriate label according to Harvard professor Paul Dudley White, who studied the subject for more than 50 years, was neurocirculatory asthenia.[1] Other authors have regarded Da Costa’s syndrome as the best name because it does not give any attribution to hypothesised cause and is therefore the most objective term.[11]

The typical patient is a sedentary worker with a long, thin, flat, or narrow chest, and a stooped spine, as depicted in a life sized portrait which was previously displayed in the Museum of the Post-Graduate Medical School of London[16]. Notable medical authority Oglesby Paul summarised many of the Da Costa controversies in a 1987 edition of the British Heart Journal[2] and since then the use of the term has become rare and, although the ailment is still a common and easily diagnosed problem, it has been absorbed into other modern categories of labeling. The abnormal response to effort is consistent with the modern equivalent of effort intolerance which is a symptom of a type of postural orthostatic tachycardia syndrome which is a sub-type of the chronic fatigue syndrome[17] [1] [18]. Other popularly used labels included soldier’s heart, effort syndrome, anxiety neurosis,[1][2] and post-viral fatigue syndrome.[15] All modern ideas about cause and labeling have their strong adherents and opponents, however, none have yet been scientifically proven or universally accepted.

The following “History” section of the article has been described by my two critics as unreliable information which violates Medically Reliable Sourcing policy because the references were “old”, “entirely superseded”, “from more than a century ago”, and “from before most editors were born”. As another example the words “seriously outdated”, were used on the arbitration page where I was banned. See hereThe following quote is an extract from the Wikipedia policy on reliable sources for medical articles . . .“History sections often cite older work, for obvious reasons”, and can be seen here



Da Costa’s syndrome is named after the surgeon Jacob Mendes Da Costa, who first observed it in soldiers during the American Civil War. The typical case was the civilian who enlisted in the army and was sent on long hours of marching, often up to twenty miles in one day, sometimes at double quick pace, with poor food and water, and in bad weather. They developed a viral infection and diarhoea and became exhausted and fell out of line and were hospitalised for treatment. After several months they recovered from the infection but when they returned to marching they were unable to keep up the pace as before and were again hospitalised, and although making a partial recovery they continued to suffer from abnormal palpitations, breathlessness and fatigue in response to mild exertion, and were unfit for full military duty. Da Costa also noted that the pulse was always greatly and rapidly influenced by position, such as stooping or reclining.[7]

Another physician, Earl de Grey, had previously presented four reports on British soldiers with these symptoms between 1864 and 1868, and attributed them to the heavy weight of military equipment being carried in knapsacks which were tightly strapped to the chest in a manner which constricted the action of the heart. Also in 1864, Henry Hawthorne observed soldiers in the American Civil War who had similar symptoms which were attributed to “long-continued overexertion, with deficiency of rest and often nourishment“, and indefinite heart complaints were attributed to lack of sleep and bad food[19]. In 1870 Arthur Bowen Myers of the Coldstream Guards also regarded the accoutrements as the cause of the trouble, which he called neurocirculatory asthenia and cardiovascular neurosis[20][21][22][23].


In 1916 Sir James MacKenzie chaired an influential medical conference aimed at determining the future course of research for the subject in England, in order to gain a better understanding of the condition [12]. He attributed the fatigue to the abnormal pooling of blood in the abdominal and peripheral veins during exertion, which reduced blood flow to the brain. He also observed that the soldiers were fit and well at the start of the war, but after becoming severely exhausted by long marching or viral infections they recovered partially but with a reduced capacity for effort. They experienced abnormal palpitations and breathlessness which impaired their capacity to run fast, or to run up and down stairs, or to keep up with their comrades in marches as before.[23]

Between 1916 and 1919 several synonyms were used to describe Da Costa’s syndrome in World War 1, including soldier’s heart and neurocirculatory asthenia. Sir Thomas Lewis gave it the title of the effort syndrome [24]because he observed that in some cases the symptoms occurred exclusively in response to physical exertion. Many of these patients had poor physiques with narrow or flat chests and a history of minor symptoms of the condition prior to enlisting in the army, and they often came from sedentary occupations which they chose because of difficulties in doing strenuous work. They had also avoided vigorous sports for similar reasons[4]. Some of them enlisted several times and were repeatedly rejected but persisted until they were finally accepted, and then their symptoms were aggravated or caused by strenuous exertion at training camps, or while on long marches where they contracted viral infections, and after recovering from the fever they found that they could not sustain their former levels of activity. Graded exercise testing was used to gauge the severity of their condition, and both Lewis and Osler used it as a treatment[25][4][26] which enabled some of the soldiers to return to full military duty, but others were put on light duties or discharged. After the war they generally changed to lighter occupations than they had before the war, and some were chronically incapacitated by their fatigue[4].


In 1939 J.L. Caughey Jnr. reviewed the literature of internal medicine on the subject of cardiovascular neurosis which referred to cases that involved symptoms similar to those of heart disease occurring where there was no apparent disease of the heart or blood vessels. The typical patient had his tonsils and appendix removed as a child, as well as many infectious illnesses and colds. He had a thin physique, and a weak stomach, and his kidneys had been damaged by Scarlet fever, and there were frequent fluctuations in the color and volume of his urine. His blood pressure was unstable, and his peripheral circulation was poor, with pale fingers and toes in cold weather. He had difficulty with concentrating and thinking clearly and had a poor memory. They had a respiratory infection three years prior to suffering from pain in his heart, shortness of breath, dizziness, faintness and weakness. All of his symptoms were “made worse by exertion or nervous strain”. They often felt breathless and would complain of not being able to expand their chest far enough to get a full breath. Caughey also noted previous exercise tests which indicated “a physiological abnormality in the patient as compared to the normal person”, but he believed that it was due to their fear that exercise would cause a heart attack. In describing the lack of stamina he suggested that there were two groups of patients, the first who never developed the ability to persevere against the challenges and adversities of life, and those who tried but gave up.[27]

In the 1940?s there were several studies aimed at determining the physical basis of these conditions[11][28] and in 1947 S.Wolf studied the “respiratory distress characterized by inability to get a full breath” and found that the thoracic diaphragm function was abnormal, and when the diaphragms contractile state during inspiration was such that adequate inspiration was no longer possible, breathlessness occurred with a feeling of inability to take a full breath. The spasm of the diaphragm was often accompanied by pains in the chest and shoulder, occlusion of the lower end of the esophagus, and difficulty swallowing.[29] Also in 1947 a report by Cohen and White noted that the complete mechanism of Da Costa syndrome symptoms was unknown but when respiration was investigated objective abnormalities were found, “just as when other symptoms of N.C.A. are investigated with objective methods, which demonstrates that the abnormalities are not all in the subjective sphere”. The respiratory abnormalities at rest were few but during exercise the abnormalities became more pronounced and the deviations from the normal became greater as the rate and amount of exercise increased.[30]


In 1950 Edmund Wheeler presented the results of a 20-year longitudinal study of 173 patients with “effort syndrome” and found that the condition involved varying degrees of disability but all patients tended to improve with a low-stress lifestyle. He concluded that, although they all had what was called ‘anxiety’, they did not develop a higher frequency of illnesses such as peptic ulcers, diabetes, or asthma etc, “which have recently been said to be caused by anxiety” and that “there is no evidence that anxiety causes these diseases”.[13]

In 1951 the fourth edition of Paul Dudley White’s book “Heart Disease” contained a chapter on “Neurocirculatory Asthenia”, because, as he explains, the symptoms are similar to heart disease, but are not the same, and he adds, that they are also similar to, but can occur in the absence of anxiety, and are not exactly like those produced by effort in a normal healthy person, and therefore need to be discussed separately.

He describes the typical group of symptoms which are precipitated by excitement or effort, and stated that “it constitutes a kind of fatigue syndrome” and in some cases “it is more or less a chronic condition,” and that regardless of it’s pathogenesis it was a real illness. In some patients the neurocirculatory symptoms were most prominent, but for some unknown reason there were other cases where the main symptoms were gastrointestinal or cerebral. The general causes of the condition appear to include such strains as worry over business, social, or family matters, emotional conflicts, physical or nervous fatigue, and exhaustion from acute infections or illnesses. The organic basis was not known although the possibilities which had been considered in the previous 25 years, included thyrotoxicosis, low-grade infection, adrenal hyperactivity, hyperventilation resulting in alkalosis, and lack of salt, but none have been confirmed. Many of the patients had thin physiques with an “unusually vertical position of the heart”, and “abnormality of shape of the capillary loops at the base of the nail” . . . “It is common to find that close relatives have had similar problems, and recent studies indicated that it was one of the Mendelian dominant group of inherited disorders.” It was common in World War 1, occurred in civilians as well as soldiers, and it is generally seen in young adults, but can occur at any age, and is more common in women than men. The frequent sighing distinguishes the condition from heart disease, and the fatigue sometimes produces more incapacity, and even complete disability. It is a real and not an imaginary incapacity, even though at first glance it may have appeared imaginary in World War 1 (1914-1918) when it was sometimes labeled “malingering”, and even though in civilian practice it has frequently been diagnosed as “mere nervousness”. It is milder in civilian life than in war and it is so commonly associated with psycho-neurosis of the anxiety type “that the two conditions have sometimes been confused one for the other or considered to be synonymous, the term anxiety neurosis having come to mean for many the same collection of symptoms which identify neurocirculatory asthenia.”

Treatment involves rest for days or months or as long as required, and elaborate psychotherapy is generally not needed. “The condition must be discussed seriously, not lightly as if it was of no importance”, and it is equally wrong to dismiss it as negligible or imaginary, as it is to to regard it as dangerous or serious and a threat to life which demands bed rest. Management of the symptoms involves normal but quiet work and play and the avoidance of long working hours or burdensome tasks. Like most people these patients usually try to keep up with their friends in strenuous living in the business, professional, or social world but with clear medical advice they soon learn the benefits limiting their activities and gradually adjust them to suit their symptoms, and are surprised at recapturing a feeling of well being.”[1]

In 1956 Paul Wood’s 2nd edition of Diseases of the Heart and Circulation included a chapter on the effort syndrome. He described how it “is characterised by a group of symptoms which unduly limit the subject’s capacity for effort” and recorded that “The cardinal symptoms” of irritable heart, soldier’s heart, disordered action of the heart (D.A.H.), etc. are “breathlessness (93%), palpitations (89%), fatigue (88%), left inframammary pain (78%), and dizziness (78%), or syncope (fainting) (35%)”. He also suggested a variety of methods for diagnosing the difference between the symptoms and those of heart disease. For example the chest pain usually involved a sharp stabbing sensation in the lower ribs caused by prolonged poor posture. He noted that the location of the pain was so near the heart that “it seems to convince the patient that his heart is diseased”, especially because of the palpitations that occur at other times. It was natural to draw that conclusion but some patients developed a morbid fear of heart disease and death, however, although the exact mechanism was not known, it could be “immediately abolished by the intramuscular injection of 2 ml. of novocaine at the site of maximum intensity and tenderness”, indicating that it was in the muscle between the ribs and was related to fibrositis. The breathlessness involved frequent deep sighs brought on by exercise, but were also common at other times, and the patients will say they are not able to obtain a full and satisfying breath. This can also occur at night when it “may be confused with asthma. “A simple test” for the symptom involves forced hyperventilation where “The patient is asked to breath deeply and rapidly for one minute.” When a healthy person is asked to stop he feels breathless for about 20 seconds, but a patient with Da Costa’s syndrome “continues forced breathing, explaining later that he felt breathless.” i.e. there is an abnormal breathing pattern – “Dyspnoea” instead of insufficient breathing – “apnoea”. Also “Normal subjects have no difficulty holding the breath for at least 30 seconds, but patients with Da Costa’s syndrome usually give up very quickly. With regard to the fatigue the patients often do not feel refreshed when they wake up in the morning, and they may “feel tired and listless during the day”. The other type of fatigue which is related to effort involves a delay in the return of pulse rate after exertion.[16]. In considering the influence of psychological factors he noted that the similarity of the symptoms to heart disorders may be the cause of a fear of heart disease (cardiophobia), which contributes to the reluctance to exercise (i.e. resulting in exercise phobia), and that all of the symptoms may have originated from a general anxiety neurosis resulting from genetic or familial factors, or poor health during childhood, and the consequent lack of exercise and the avoidance of sport during childhood.

In 1976 Charles Wooley presented an article about the history of Da Costa’s syndrome in the journal called ‘Circulation’. He reported that Da Costa originally called it ‘irritable heart’ when he noticed the condition amongst soldiers during the American Civil War. However he added that a later study by Thomas Lewis revealed that most of the soldiers who had the problem came from sedentary occupations and “a large percentage” were “affected by the condition in civil life many years before joining the Army” and that it was not particularly a soldiers malady, and that it also affected some athletes. A further study in 1941 by Paul Wood reported that it was commoner in women[11].

The author also noted that possibly several distinct, but similar conditions were causing confusion in diagnosis, and concluded that many of Da Costa’s original patients had been described as having occasional cardiac sounds and murmurs that could now be included in the newly evolving category of mitral valve prolapse syndrome. He then recommended deferred judgment about the nature of the other cases, where advances in technology were likely to provide a more precise understanding of the relationship between the various causes [31].


In 1980 Soviet researcher V.S.Volkov studied the physical fitness levels of patients with angina heart disease, and compared them to those with neurocirculatory dystony (Da Costa’s syndrome). He divided heart disease patients into three groups with heart pain at rest, heart pain every day, and heart pain occasionally. He also divided NCD patients into three stages of mild, moderate, and severe. 80% of Da Costa’s syndrome patients were fitter than heart disease patients, but 20% were not, and had to stop the exercise because of changes in their heart rate, or overwhelming and radiating chest pain, general fatigue, and fear for their hearts.[32]

Information that I provided when I started on the topic between the 9th and 18th December 2007

From 1982-83, researchers at the South Australian Institute For Fitness Research and Training examined more than 80 volunteers with persistnat fatigue and found similar results, and a training programme was designed on the basis that they would participate if they kept within their own limits and improved at their own rate. Eleven who didn’t train were examined 6 months later with no significant change. Ten completed three months training of 2 hours per night twice per week, and six completed six months or more. Three cases improved but plateaud after three months below 600 kgm/min, and 3 ot those who were initially recorded as below 400 kgm/min showed significant improvement. Twelve months after starting the training programme one of the participants entered a six mile marathon and completed it. Although the results were not published in medical journals the general findings were reported in several Australian newspapers. According to the theory of research co-ordinator, Max Banfield, the four cardiac like symptoms of DaCosta’s syndrome were caused by the postural compression of the chest which was related to abnormal spiinal curvture, chest shape, and leaning forward.

(1) The postural compression of the ribs placed strain on the structures between them resulting in occasional brief sharp stabbing pains in the lower left side of the chest.

(2) Pressure on the diaphragm impeded it’s upward movement and impaired it’s function and respiratory efficiency to cause an occasional sense of not being able to get a full breath, particularly during exercise, where two to four deep breaths in quick succession may be required every twenty yards or so.

(3) Pressure on the heart pushed it toward the anterior chest wall where changes in pulse were more readily perceived as palpitations.

(4) Pressure on the air and blood vessels in the chest impaired blood flow between the feet and the brain resulting in tiredness, and the resistance to blood flow affected the tone of the walls of the abdominal veins which weakened circulation and reduced exertional capacity.

The factors which contributed to the cause, as evident from the observations of DaCosta, Lewis, Wood, Wheeler. and other sources, included a stooped curvature of the upper spine kyphosis, a forward curve in the lower spine lordosis and sideways curvature of the spine scoliosis. Leaning forward or stooping added to the pressure, which would be more pronounced in a chest which was small, long, narrow, flat, or receding, e.g. pectus excavatum. Other factors included tight belts or corsets, or the enlarging womb of pregnancy, especially in the latter stages when it presses up against the diaphragm, heart, and lungs. Hence, another contributing feature may be visceroptosis. The mechanism for the affect on circulation is comparable with Valsalva Maneuver, and the chronic effect is evident in tilt table test.

DaCosta’s Syndrome is a type of chronic fatigue, and posture is one of many other possible causes which have been confusing the link between cause and effect.

In 1987 prominent Harvard researcher Oglesby Paul presented a ten page history of Da Costa’s syndrome in the British Heart Journal, in which he outlined all of the controversies of the previous hundred years. He reported that many theories and labels had been proposed, but for each one which had supporting evidence, there were other studies which contradicted the findings. For example, if one study presents anxiety as a cause, another study will find patients who are not anxious, another study will report hyperventilation as a cause, yet there will also be studies which show patients who don’t hyperventilate, and for each study that shows a relationship to mitral valve prolapse syndrome there will be others that show no evidence of MVP. He concluded that the condition still existed, and was easy to diagnose, effecting 4% of the population, but that there were newer more popular labels, such as ‘anxiety state’, where he added that such labels would do no harm as long as the important history of the subject was not forgotten.[2]

I would have been quite happy to end my report on the history of Da Costa’s syndrome here (in 1987), but my two critics were deceiving other editors into believing that I was avoiding it because, in their bizarre opinions, it proved my ideas wrong. It didn’t prove any such thing, and I had to write an explanation of the modern history myself because my two critics refused to co-operate, and did absolutely nothing constructive themselves. They had about ten months of opportunity, but just picked fault with everything I wrote.

Their replacement text says something like this – after 1876 a few things happened and now,132 years later, in 2008, we have modern opinions but nobody cares how or where they came from.

In 1990 S.D. Rosen and his colleagues from the Department of Cardiology in the Charing Cross Hospital, London conducted a study of patients who had been diagnosed with the chronic fatigue syndrome, myalgic encephalomyelitis, and postviral syndrome, which they referred to as the modern terms for the effort syndrome. Their objective was to determine the role of emotional factors and chronic habitual hyperventilation in producing the symptoms by testing the levels of CO2 in the lungs during, and after 3 minutes of deliberate rapid and deep breathing, and then again while the patients were thinking about prior personal experiences which involved anger or fear. The results showed that 93 of the 100 patients had evidence characteristic of chronic habitual hyperventilation.[19] However other studies have found that the breathlessness of the effort syndrome or Da Costa’s syndrome was once regarded as just subjective, or imaginary until 1947 when it was found to be due to abnormal function of the thoracic diaphragm – the main breathing muscle.[20][21] Rosen and his colleagues also noted “It has long been recognized that hyperventilation-related illness can appear after or be aggravated by injury or infection”, so they studied that aspect and found evidence of chronic hyperventilation symptoms before the viral infection, and suggested that the infective illness simply made the fatigue worse. Their final paragraph mentioned the opinions of three authors who regarded normal health as being maintained by leading a moderate lifestyle and staying within reasonable boundaries, and that leading an excessively demanding lifestyle beyond those limits may be the cause of the effort syndrome.[22]

In 1984 S.G, Saish and his colleagues from The College of Thoracic Medicine, Kings College School of Medicine and Dentistry, London, U.K. studied 31 patients with chronic fatigue and found that 71% “had no evidence of hyperventilation during any aspect of the test” and that “There is only a weak association between hyperventilation and chronic fatigue syndrome”.[23]

In 1997 E. Bazelmans and his research colleagues from the Department of Medical Psychology of the University Hospital, Nijmegen, The Netherlands shed doubt on the role of hyperventilation in causing the chronic fatigue syndrome with their evidence that it is not related to the number or severity of symptoms and is probably a consequence rather than a cause of the condition[24]

In 1998 David Streeten presented an article in JAMA[3], explaining that the fatigue reported by Da Costa and Lewis were early descriptions of a “newly recognised” delayed form of orthostatic hypotension which is a feature of some types of Chronic Fatigue Syndrome. He stated that “as a working hypothesis”, the fatigue was due to abnormal pooling of blood in the lower limbs which delayed and reduced the flow of blood and oxygen supply to the brain. That effect was compounded by a reduced circulating red blood cell mass. He then emphasised that it is essential to identify these physical abnormalities by repeatedly measuring the patients blood pressure in recumbency and after standing for ten minutes or tilt testing, and that “it is inappropriate to consider that CFS is a manifestation of mental disorder” unless those physical causes are excluded. He added that the expense of these tests was not unreasonable considering that almost every type of work or lifestyle required a person to stand for six hours per day without experiencing the symptoms associated with reduced blood pressure. He then concluded that the instigating cause remains unknown, and that effective and safe treatments for the debilitating symptoms are still not available and that further research is required.[3]

The relevance to modern labeling terminology between 2000-2008

The use of the term Da Costa’s syndrome has fallen out of fashion and is rarely used nowadays,[2] however to put it into context with modern labels there are some relevant descriptions from the history of research. In that regard, in 1916 Thomas Lewis noted that in some cases the condition was exclusively related to exertion,[33] [5][4] and in 1956 Paul Wood O.B.E. described it as a syndrome of six clearly identifiable symptoms which had previously been called “primary”[12] “typical” [34] “characteristic”[35] “chief”[24][36] , or “classic”[1] and which he called “cardinal” symptoms[16]. Harvard professor Paul Dudley White described it as a definite malady which was a type of fatigue syndrome that is more or less chronic.[1] Nowadays those typical, distinct, or characteristic features can be seen in conditions which include the symptom with the misnomer of effort intolerance (which should be effort limitations) due to exercise induced postural hypotension.[23][16][37] For example, it is seen in one type of the Postural Orthostatic Tachycardia Syndrome, which is in turn one of the many types of chronic fatigue syndrome[17] [3][37][38][10] [39][18]. However, there are still many different ideas about cause, and the condition has been virtually lost in a sea of other labels[5][2][40] and although there is a vast amount of direct and indirect research evidence for physical cause[29][30][34], none have been universally accepted[14]. The topic remains the subject of ongoing controversy amongst imprecisely defined anxiety disorders, poorly characterised post-war syndromes[41][42][43], and the complex CFS group of ailments[41][44][45][46][38][37][37][38], Opinions differ from one medical specialist to another[17][10][18], from one medical authority to another, and from one medical consumer group to another, and change regularly[44][15][18]. Dictionary definitions and label priorities also alter with the changes in opinion, however the Merriam Webster online Medical Dictionary [2] includes a definition of neurocirculatory asthenia, with the typical symptoms occurring in relation to exertion and in the absence of heart disease, and provides the synonyms of “cardiac neurosis, effort syndrome, irritable heart, and soldier’s heart” [47], which were the most frequently used synonyms for Da Costa’s syndrome.[1][2] Indeed Dorland’s medical dictionary lists Da Costa’s syndrome and neurocirculatory asthenia as direct synonyms[48] and the current 2008 edition of Harrison’s Principles of Internal Medicine describes the symptoms of the modern term chronic fatigue syndrome as being “not new” with the comment that in the past it may have been diagnosed as the “effort syndrome”[17] defined in 1919 by Lewis[25][4].


The typical symptoms of Da Costa’s syndrome are palpitations, breathlessness, chest pains, and or fatigue[16][34][49][12] occurring exclusively in response to physical exertion in some cases[4][16][6], and occasionally to changes in posture[33][50][12], but in many patients they are also associated with some viral infections or nervous strains.[1][27]

* The palpitations occur as a more forceful and rapid beating of the heart than usual and are generally associated with stress or exertion[4][1].

*The breathlessness is related to spasm and inefficient function of the thoracic diaphragm[29][11][28][30] which is the primary breathing muscle, and it features occasional slow, forced, deep breaths – abnormal sighs or yawns[27][50][14][30][1][5][11][34].The person often feels as if they cannot get a full breath, and they tend to avoid crowded buses, trains and theatres, and they prefer to sit near open windows to get fresh air, or in aisle seats so that they can leave the room quickly if necessary, and in some cases they avoid open spaces where there are crowds. This was due to an abnormal build up of CO2 exhaled by the crowd in a confined space, which tended to increase the frequency of sighs and ultimately cause all of the physical symptoms of the condition, and sometimes a sense of suffocation and a sense of fear that resembled anxiety attacks[14].

* The most common chest pain is a dull ache or tenderness in the lower left side of the chest[24][36] with occasional brief, sharp and stabbing sensations in that area[4][1][5][14][11][16][2][34], and there may sometimes be cramping pains in the muscles on the far left or right side of the chest brought on by muscular efforts [11][16][1]such as the strain of “lifting a heavy weight”, especially at awkward angles – “in such actions as cranking an engine” [11][16].

* The fatigue involves two distinct types. Firstly an abnormal pattern of tiredness with the person often waking up tired in the morning[8], and feeling tired at various times throughout the day[35], and secondly, an increased frequency of sighing, or gasping breathlessness and exhaustion as the level of physical exertion increases[24], and it is unlike normal fatigue insofar as it tends to persist abnormally despite rest[5]. It is related to abnormal pooling of blood in the abdominal and peripheral veins which reduces blood flow to the heart and brain[4][38] , especially during exertion, which explains why faintness and dizziness are often additional features, and why most patients have a reduced capacity for exertion.[23][16][3][17]

* The faintness or dizziness can often occur when standing up quickly, especially when getting out of bed in the morning[33], or after a large meal[33], or when standing still for many hours on a hot day, or sometimes by bending or stooping[7][24], or by being moved on a swingboard[24] or tilt table[37], and is related to the abnormal distribution and movement of blood throughout the body[24][33].

Predisposing factors

The condition may be genetic or familial[11][35][30][16][13][27][34][2] and is more likely to affect individuals who had multiple infectious illnesses and surgical procedures during childhood[4][27], and who had thin[23][51][1][52] and stooped physiques[24][53][11] [31][1][34], and sedentary workers[4][33][54] who avoided or never played sport[4][27][1][16][31], and it is more common in women[4][14][13][11][1][34][2][39][18], and often occurs or starts during a pregnancy[13][14][55]. Most soldiers who developed the condition were former sedentary workers[24][33] who had minor indications of the typical symptoms prior to the war[7][4][33][54][51][14][35][31], and were volunteers rather than conscripts[33][36], and it was more common in the army where strenuous marching was required, and less common in the navy and air force[36].

Onset of symptoms

In some cases the condition appears to have been present since birth, or ever since the patient can remember[27][51][30][13][35], but it is often gradual in onset without the patient noticing it or being able to identify an obvious cause[14], or it may start and recur or persist after a viral infection[7][23][4][14][16][2], or after an excessive or prolonged period of physical[7][4][14][54][41] or emotional stress[19][13][1]. The average age of onset is 25 years[35][14][34].


According to J.M.Da Costa in his original paper of 1871 the causes were “Fevers” 17%, “Diarrhoea” 30.5%, “Hard field service, particularly excessive marching” 34.5%, and finally, “Wounds, injuries, rheumatism, scurvy, ordinary duties of soldier life, and doubtful causes” 18%.[7][12]

Since Da Costa’s initial report several authors have proposed that bad work posture[12], compression of the chest with tight straps[12], work involving severe muscular exertion[12], anxiety[1][2][48] related to personal or business stress[13][16][1], pregnancy[13][14] and malnutrition[19][1][14][41] can be added to the list of causes.

General Physical Characteristics

Da Costa’s syndrome can affect individuals of any type of physique, but they are generally thin[23][25][33][35][51][1][52], with various chest wall deformities and stooped or scoliotic spines[24][4][33][31][11][16][34]. They are generally, but have not always been poor athletes and swimmers[33][30][14], and have an abnormally functioning thoracic diaphragm which results in inefficient breathing and the tendency to sigh more often than usual. They also have a reduced capacity to hold their breath[4], and an intolerance to carbon dioxide where deliberately overbreathing, or breathing CO2 enriched air brings on their symptoms[14][56][2], as does wearing a gas mask[31][11][30] and the infusion of sodium lactate[34]. Other common distinguishing features are abnormalities in the shape of their fingernail capillaries,[1][11][34] and it is very common to find dermatographia[24] where running a finger nail lightly down the chest will leave a trailing red mark and hence the ability to write on the skin.

Physiological Abnormalities related to exertion Da Costa’s syndrome has been called “the physiological syndrome of effort”[33][54] and the patients have a poor aerobic capacity or low level of fitness which is not related to the lack of exercise[25][4], and they have breathing patterns and other symptoms which are not the normal response to effort[50][14][30][1][5][11][2]. They have poor diaphragm movement and reduced chest expansion at rest[27][11], and during exercise training such as walking, jogging, or running “they have an easily induced oxygen debt”[1], their breathing become disproportionately shallow, oxygen consumption is lower, and blood lactate levels are higher than normal[14][30][34][12], in some cases more than double[14], and as the intensity and duration of the exercise increases the physiological abnormalities increase[24][14][30] which is consistent with the histories and claimed disabilities of these patients[50][14]. There is also an abnormal pooling of blood in the abdominal and peripheral veins[23][25][3][38] , and a slow return of pulse rate to normal after exertion[24][33][54][16].


The reports of Da Costa, White, Wheeler, and Wood etc. show that patients recovered from the more severe symptoms when removed from the strenuous activity, the stressful emotional situations, or the sustained lifestyle that caused them[19][33][13][1]. In many cases relapses were prevented by determining the limits of exertion and lifestyle and keeping within them[24][13][1][57][44]. The physical limitations were associated with the abnormalities in respiration and circulation, and exercise testing and blood CO2 measurements can be used to accurately estimate the degree of disability for up to 20 years later[50]. The treatments evident from the previous studies included appropriate levels of exercise where possible[23][26][1][2][58], using individually designed graded exercise regimes[24][50][33][59][41][9][6][34][49] which have been proven to be effective in relieving symptoms and improving exercise tolerance in come cases[50][12][17]. Some symptoms such as faintness can be prevented or relieved by wearing loose clothing about the neck, chest, and waist[7][20][12], and standing up slowly can prevent the faintness associated with postural or orthostatic hypotension in some cases[16][17], and avoiding postural changes such as stooping, or lying on the left or right side[7][24][33][11][12], or the back relieved some of the palpitations, chest pains, or giddiness in some cases. Some of the symptoms can be relieved by laying in a recliner chair[59], and the chest pain can be temporarily relieved by intramuscular injection of novocaine at the site of tenderness[16]. Other treatments were improving nutrition[19][33], physique and posture,[7], and drinking more fluids, increasing salt intake, and sleeping with the head elevated which can reduce the fatigue[60][61][38]. It is also useful to reassure the patient that the condition is not due to heart disease and that many individuals manage the symptoms successfully by making appropriate modification to their exercise levels and lifestyle, and generally have a normal lifespan[33].


In his original paper J.M. Da Costa suggested that the condition tended to become chronic after a prolonged and exhausting viral infection where the person was sent back to full and demanding activity too soon. He therefore recommended that the person should be provided with sufficient rest, nourishment, and gradual physical training to achieve full strength before resuming former duties[7][2][33]. Various other authors have suggested that the adoption of a moderate lifestyle and avoidance of the extremes can prevent this type of condition from developing[33][13][1][57], and that this general principle applies regardless of other causes and pathogenesis[62]. As the result of research in World War 1, the World War 2 army recruits with evidence of symptoms in civilian life were excluded from joining, and the incidence during the war decreased significantly[8].

Alternative names for Da Costa’s syndrome

The name of Da Costa’s syndrome has changed so often[36] from one specialist[5][14][34], or from one country[32][44] [12][18], or one year to another[14][44][18] that it has created confusion in the definition, diagnosis, and study of the condition,[33][31] as is evident from many research articles which mention four or five in their introduction, [27][50][30][14][1][16][56][34][31][63][61][6][12][41][45][18][17] and from a recent website which lists what it claims are more than eighty synonyms.[15] However the title of Da Costa’s syndrome has been regarded as the preferred label by several authors because of its non-attribution and unchallengeable aspect.[11] By contrast, the labels such as irritable heart or cardiac asthenia are inappropriate because the ailment is not a form of heart disease[1]. Similarly labels such as Soldier’s heart or Combat fatigue are too specific[36][2] and can be challenged because the vast majority of patients have never been soldiers,[1] and it is inappropriate when the symptoms occur in pregnant civilian women[64][11]. Relating it to Post-viral fatigue syndrome[17] can be disputed because, in many cases the patient could not recall having a viral infection, and the label of Post-traumatic stress disorder (PTSD) can be challenged because many patients have not experienced preceding trauma,[13][2]and the symptoms are not the same as those caused by stress[14] and can have a genetic[35][30] [34][31][2][45], or gradual onset unrelated to stress [30]. Somatoform disorder refers to symptoms occurring in the absence of physical or physiological evidence to account for them [3], yet Da Costa’s symptoms have actually been called “the physiological syndrome of effort”[33], and have been associated with multiple physical, physiological and biochemical abnormalities[24][33][50][54][51][30][16][32][2][12][45][18], and the term dysautonomia implies a fault in the autonomic nervous system which, whilst it may be an effect, and has not been proven as a cause[1][11][16][2][39]. There are also discrepancies associated with the label of Hyperventilation syndrome [1][16][2][65] with some evidence that the abnormal breathing patterns, which may include hyperventilation, are secondary to the other symptoms and physiological abnormalities[8][56]. Similarly, some patients with MVP have none of the symptoms of Da Costa’s syndrome and vice versa[2][57]. The term anxiety state implies that the patient is in a constant state of anxiety, yet many patients appear calm and are rarely affected by anxiety[30][57][38], and the term anxiety disorder can be disputed[57] because the symptoms are not the same as those produced by anxiety[33][14][1]and they don’t develop any abnormal incidence of other diseases such as peptic ulcers or asthma which have been previously, and erroneously attributed to anxiety[13][2]and labeled as psychosomatic[34]. Similarly the condition cannot be regarded as an exercise phobia because many patients were capable of strenuous marching prior to developing the condition [7] or were formerly good athletes[24][51], and in fact, it has previously been called “Athlete’s Heart”[33]. However, by referring to the ailment as Da Costa’s syndrome it can be said that it may be related to anxiety, excessive physical or emotional stress, post-viral causes, and unknown causes etc. The symptoms can include orthostatic hypotension and postural tachycardia[38][18] but those terms are not appropriate as labels because they don’t account for the other symptoms. Da Costa’s could be referred to as a type of Chronic fatigue syndrome,[1][62][3][44][45][39][10][18][17] because chronic fatigue is the main symptom, but the other five typical symptoms distinguish it from the general term [4], and from other types of CFS[44].

Differential Diagnosis

The condition needs to be distinguished from angina heart disease (angina pectoris), mitral valve prolapse syndrome[9], hyperventilation syndrome, hyperkinetic heart, cardiophobia[2], normal tiredness[5][35] the normal symptoms of exertion[33][5][30][1], normal nervousness[1], exercise phobia, panic attacks, anxiety state, and depression, and other similar syndromes such as the the post-traumatic stress disorders and the numerous post-war syndromes.[2]. It also needs to be distinguished from other types of orthostatic hypotension [38][39][18] or chronic fatigue syndromes[10] , which involve separate or different, or additional symptoms. However many patients with Da Costa’s syndrome also have such problems as a coincidence or as a result of the ailment. For example patients who have symptoms similar to heart disease, often develop a fear of heart disease (cardiophobia)[16][2] Also note that Da Costa’s syndrome involves a set of six classic symptoms, and needs to be distinguished from conditions that involve only one or two symptoms[34]. For example hyperkinetic heart may occur on its own as a single symptom, or it may be part of the set of six in a Da Costa’s patient[63][2]. Similarly a person who only has a dual combination of the left-sided chest pain and palpitations does not necessarily have Da Costa’s syndrome. Also, characteristically Da Costa’s syndrome involves fatigue which includes both an impaired capacity for exertion[24][26][17], and secondly, an abnormal pattern of tiredness[5]. Therefore, if patients do not have difficulty with exertion they do not have Da Costa’s syndrome,[7] e.g. a person who complains of abnormal tiredness but participates in vigorous sport does not have Da Costa’s syndrome.

The history of this condition clearly and precisely defines the “primary” [12] and “typical” [34]symptoms as “Da Costa’s” “chronic” “fatigue” “syndrome”[1], which distinguishes it from many other definitions or types of CFS.

The typical thin and stooped physique of a patient with this range of symptoms, painted by Ian Tillard, and found in a book by Paul Wood (1956).

The typical thin and stooped physique of a patient with this range of symptoms, painted by Ian Tillard, and found in a book by Paul Wood (1956).

Related Conditions

Chronic Fatigue Syndrome
Postural Orthostatic Tachycardia Syndrome [37]
Soldier’s Heart
Chest Wall Syndrome
Costochondritis – left-sided chest pain
Sigh Syndrome
Exercise Intolerance
Mitral Valve Prolapse Syndrome


Portrait of a typical Da Costa’s syndrome patient right


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2. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac Paul O (1987). “Da Costa’s syndrome or neurocirculatory asthenia”. Br Heart J 58 (4): 306­15. PMID 3314950.

3. ^ a b c d e f g Streeten, David H.P. (September 1996). “The Nature of Chronic Fatigue Syndrome (CFS)”. J.A.M.A. 280 (12): Editorial. Retrieved on 4 October 2008.

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13. ^ a b c d e f g h i j k l m n Wheeler E.O. (1950), Neurocirculatory Asthenia et.al. – A Twenty Year Follow-Up Study of One Hundred and Seventy-Three Patients., Journal of the American Medical Association, 25th March 1950, p.870-889 (Contributors to the study: Edwin O.Wheeler, M.D., Paul Dudley White, M.D., Eleanor W.Reed, and Mandel E.Cohen, M.D.)

14. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z Cohen ME, White PD (1951). “Life situations, emotions, and neurocirculatory asthenia (anxiety neurosis, neurasthenia, effort syndrome)”. Psychosom Med 13 (6): 335­57. PMID 14892184. Retrieved on 28 May 2008.

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18. ^ a b c d e f g h i j k l Lu, Chih-Cherng; et.al (2004). “Orthostatic Intolerance: Potential Pathophysiology and Therapy”. Chinese Journal of Physiology 47 (3): 102. Retrieved on 3 November 2008.

19. ^ a b c d e Hartshorne, Henry (3 June 1863). “On heart disease in the army”. College of Physicians, Philadelphia.

20. ^ a b Myers, Arthur (1870). On the etiology and prevalence ofdiseases ofthe heart among soldiers,. London: Churchill.

21. ^ Goetz, C.G.; Turner C.M. and Aminoff M.J. editors (1993). Handbook of Clinical Neurology. B.V.: Elsevier Science Publishers. pp. 429-447.

22. ^ Goetz, C.G.; Turner C.M. and Aminoff M.J. editors (1993). Handbook of Clinical Neurology. B.V.: Elsevier Science Publishers. pp. 429-447.

23. ^ a b c d e f g h i Mackenzie, Sir James; R.M.Wilson, Philip Hamill, Alexander Morrison, O.Leyton, & Florence A.Stoney (1916-01-18). “Discussions On The Soldier’s Heart”. Proceedings of the Royal Society of Medicine, Therapeutical and Pharmacological Section 9: 27-60.

24. ^ a b c d e f g h i j k l m n o p q r s [|Lewis, Thomas] (1918). The Soldier’s Heart And The Effort Syndrome. London: Shaw & Sons. pp. 144 pages.

25. ^ a b c d e Lewis, T. (1918). “Observations upon prognosis, with special reference to a condition described as the “irritable heart of soldiers””. Lancet i (181-3).

26. ^ a b c Osler, Sir William (1918). “Graduated exercise in prognosis. Letter.”. Lancet (1): 231.

27. ^ a b c d e f g h i Caughey, J.L. Jnr. (April 1939). “Cardiovascular Neurosis; A Review”. Psychosomatic Medicine 1 (3): 311-324.

28. ^ a b Cohen, Mandel E.; R.E. Johnson, F.C. Consolazio, P.D. White (1946 Nov.). “Low oxygen consumption and low ventilatory efficiency during exhausting work in patients with neurocirculatory asthenia, effort syndrome, anxiety neurosis”. Journal of Clinical Investigation 25 (6): 920.

29. ^ a b c Wolf, S. (1947 November). “Sustained Contraction of the Diaphragm, the Mechanism or a Common Type of Dyspnoea and Precordial Pain”. Journal of Clinical Investigation 26: 1201. Retrieved on 23 March 2008.

30. ^ a b c d e f g h i j k l m n o p q Cohen, Mandel E., Paul D. White, (May 1947). “Studies of Breathing, Pulmonary Ventilation and Subjective Awareness of Shortness of Breath (Dyspnea) in Neurocirculatory Asthenia, Effort Syndrome, Anxiety Neurosis”. The Journal of Clinical Investigation 26 (3): 520-529. Retrieved on 4 February 2008.

31. ^ a b c d e f g h i Wooley M.D., Charles F. (May 1976). “Where are the Diseases of Yesteryear?”. Circulation (the official journal of the American Heart Association 53 (No. 5): 749-751. Retrieved on 24 September 2008.

32. ^ a b c Volkov, V.S. (1980). “Psychosomatic Interrelations and their importance in patients with cardiac type type NCD” (English abstract). Soviet Medicine (11): 9-15.

33. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa [|Lewis, Sir Thomas] (1937). Diseases of the Heart 2nd edition. London: MacMillan and Co., Limited. pp. 96-99 & 159-164 & 280-287.

34. ^ a b c d e f g h i j k l m n o p q r s t Hurst, J.W.; R.B.Logue, R.C.Schlant, N.K.Wenber (1974). The Heart 3rd. edition. New York: McGraw Hill Book Co.,. pp. 1552-1555.

35. ^ a b c d e f g h i Cohen, Mandel E.; Daniel W.Badal, Alice Kilpatrick, W.Reed, and Paul D.White (June 1951). “The high familial prevalence of neurocirculatory asthenia, anxiety neurosis, effort syndrome”. American Journal of Human Genetics 3 (2): 126-158. PMID PMCID: PMC1716324. Retrieved on 2 December 2008.

36. ^ a b c d e f Gordon, Keith (April 1944). “Effort Syndrome – Editorial”. Canadian Medical Association Journal 50 (4): 362-363. PMID PMCID: PMC1581613. Retrieved on 14 December 2008.

37. ^ a b c d e f Raj, Satish R. (2006). “The Postural Tachycardia Syndrome (POTS): Pathophysiology, Diagnosis & Management”. Indian Pacing Electrophysiology. Journal 6 (2): 84-99. Retrieved on 28 October 2008.

38. ^ a b c d e f g h i Rowe, P.C. (April 2002). “Editorial: Orthostatic Intolerance and Chronic Fatigue Syndrome: New Light On An Old Problem”. Journal of Pediatrics 140 (4): 387-389. PMID 12006948. Retrieved on 31 October 2008.

39. ^ a b c d e Stewart, Julian M.; Amy Weldon (May 24th 2000). “Vascular perturbations in the chronic orthostatic intolerance of the postural orthostatic tachycardia syndrome.”. Journal of Applied Physiology 89: 1505-1512. Retrieved on 8 November 2008.

40. ^ Nixon, G.F. (June 1994). “Effort syndrome: Hyperventilation and reduction of anaerobic threshold”. Journal of Applied Psychophysiology and Biofeedback 19 (2): 155-169. doi:10.1007/BF01776488.

41. ^ a b c d e f C.Hyams, M.D., Kenneth; et.al (September 1996). “War Syndromes and Their Evaluation: From the U.S. Civil War to the Persian Gulf War”. Annals of Internal Medicine 125 (5): 398-405. Retrieved on 2 December 2008.

42. ^ Engel CC (2004). “Post-war syndromes: illustrating the impact of the social psyche on notions of risk, responsibility, reason, and remedy”. J Am Acad Psychoanal Dyn Psychiatry 32 (2): 321­34; discussion 335­43. PMID 15274499.

43. ^ Clark MR, Treisman GL (eds.) (2004). Pain And Depression: An Interdisciplinary Patient-centered Approach (Series: Advances in Psychosomatic Medicine, vol. 25). Basel: Karger. pp. 176. ISBN 3-8055-7742-7.

44. ^ a b c d e f g Ware, Norma C. (1998). “Sociomatics and Illness Course in Chronic Fatigue Syndrome”. Psychosomatic Medicine 60: 394-401. Retrieved on 28 November 2008.

45. ^ a b c d e Online ‘Mendelian Inheritance in Man’ (OMIM) Orthostatic Intolerance -604715

46. ^ Schondorf, R.; R.Freeman (1999). “The importance of orthostatic intolerance in the chronic fatigue syndrome”. Am.J.Med.Sci. 317: 117-123. PMID 10037115.

47. ^ “Merriam-Webster Medical Dictionary”. Retrieved on 2008-06-10.

48. ^ a b “Dorlands Medical Dictionary:Da Costa syndrome”. Retrieved on 2008-10-06.

49. ^ a b Fleming, P.R. (1997). A Short History of Cardiology. Amsterdam and Atlanta: Clio Medica, Wellcome Institute. pp. 159.

50. ^ a b c d e f g h i Whishaw, R. (December 16th 1939). “A Review of the Physical Condition of Returned Soldiers Suffering from the Effort Syndrome”. The Medical Journal of Australia: 891-893.

51. ^ a b c d e f Jones, Maxwell; R.Scarisbrick (1946). “The effect of Exercise on Soldiers with Neuro-circulatory asthenia”. Psychosomatic Medicine (8): 188-192. Retrieved on 2 December 2008.

52. ^ a b Linford Rees, W. (1945). “Physique and Effort Syndrome”. Journal of Mental Science 91: 89-92. doi:10.1192/bjp.91.382.89. Retrieved on 14 November 2008.

53. ^ Lewis, Sir Thomas (1940). The soldier’s heart and the effort syndrome 2nd. edition. London: Shaw.

54. ^ a b c d e f Wittkower, E.; J.P. Spillane (Feb. 1940). “Medical Problems in War – Neuroses in War (The Effort Syndrome)”. The British Medical Journal: 266 & 308-310.

55. ^ Reid, D.E.; M.E.Cohen (1950). “Evaluation of present day trends in obstetrics”. J.A.M.A. 142: 615.

56. ^ a b c Morgan, W.P. (Sept. 1983). “Hyperventilation syndrome: a review”. American Indian Hygiene association Journal 44 (9): 685-689. Retrieved on 5 November 2008.

57. ^ a b c d e Lewis, R.P.; C.F.Wooley, A.J.Kolibash and H.Boudoulas (1987). “The mitral valve prolapse epidemic: fact or fiction”. Transactions of the American Clinical and Climatological Association 98: 222-236. Retrieved on 17 November 2008.

58. ^ Goudsmit EM, Howes S. “Pacing: A strategy to improve energy management in chronic fatigue syndrome”, Health Psychology Update (BPS), 2008, 17, 1, 46-52

59. ^ a b Selian, Neuhoff (1917). “XX”. Clinical Cardiology. New York: MacMillan. pp. 255.; cited on “Da Costa’s Syndrome”. vlib.us. Retrieved on 2007-12-18.

60. ^ MacLean, A.R.; Allen E.V. (1940). “Orthostatic hypotension and orthostatic tachycardia: treatment with the “head-up” bed”. J.A.M.A. 115: 2162-7.

61. ^ a b MacLean, A.R.; Allen E.V., Magath T.B. (1944). “Orthostatic hypotension and orthostatic tachycardia: defects in the return of venous blood to the heart”. American Heart Journal 27: 145-163.

62. ^ a b Rosen, S.D.; J.C. King, J.B. Wilkinson, & P.G.F. Nixon (December 1990). “Is chronic fatigue syndrome synonymous with effort syndrome?”. Journal of the Royal Society of Medicine 83: 761-764.

63. ^ a b “The Hyperkinetic Heart”. The Lancet 318: 967. October 31st. 1981.

64. ^ Hamilton, B.E.; K.J.Thomson (1941). The Heart in Pregnancy and the Childbearing Age. Boston: Little, Brown and Company.

65. ^ Saish, S.G.; A. Deale, W.N. Gardner, & S. Wessely (June 1994). “Hyperventilation and chronic fatigue syndrome”. The Quarterly Journal of Medicine 87 (6): 373-374. Retrieved on 22 March 2008.

The watered down and falsified version of the article provided by my two critics which is loaded with bias on the psychiatric theories, and deletes 131 years of evidence from medical research history

Revision as of 18:57, 26 January 2009. See here

Da Costa’s syndrome

Classification and external resources

ICD-10 F45.3

ICD-9 306.2

Da Costa’s syndrome, which was colloquially known as soldier’s heart, is a syndrome with a set ofsymptoms that are similar to those of heart disease, though a physical examination does not reveal any physiological abnormalities. In modern times, Da Costa’s syndrome is considered the manifestation of an anxiety disorder and treatment is primarily behavioral, involving modifications to lifestyle and daily exertion.

The condition was named for Jacob Mendes Da Costa, who investigated and described the disorder during the American Civil War. It is also variously known as cardiac neurosis, chronic asthenia, effort syndrome, functional cardiovascular disease, neurocirculatory asthenia, primary neurasthenia, subacute asthenia and irritable heart.



The World Health Organization classifies this condition as a somatoform autonomic dysfunction (a type of psychosomatic disorder) in their ICD-10 coding system. In their ICD-9 system, it was classified under non-psychotic mental disorders.[1] The syndrome is also frequently interpreted as one of a number of imprecisely characterized “postwar syndromes”.[2][3]

There are many names for the syndrome, which has variously been called cardiac neurosis, chronic asthenia, effort syndrome, functional cardiovascular disease, neurocirculatory asthenia, primary neurasthenia, and subacute asthenia.[4][5][6][7] Da Costa himself called it irritable heart[8] and the term soldier’s heart was in common use both before and after his paper. Most authors use these terms interchangeably, but some authors draw a distinction between the different manifestations of this condition, preferring to use different labels to highlight the predominance of psychiatric or non-psychiatric complaints. For example, Paul writes that “Not all patients with neurocirculatory asthenia have a cardiac neurosis, and not all patients with cardiac neurosis have neurocirculatory asthenia.”[7] None of these terms have widespread use.


Symptoms of Da Costa’s syndrome include fatigue upon exertion, shortness of breath, palpitations, sweating, and chest pain. Physical examination reveals no physical abnormalities causing the symptoms.[9]


Da Costa’s syndrome is generally considered a physical manifestation of an anxiety disorder.[1][10]


Although it is listed in the ICD-10 under “somatoform autonomic dysfunction”, the term is no longer in common use by any medical agencies and has generally been superseded by more specific diagnoses.

The orthostatic intolerance observed by Da Costa has since also been found in patients diagnosed with chronic fatigue syndrome and mitral valve prolapse syndrome.[11] In the 21st century, this intolerance is classified as a neurological condition. Exercise intolerance has since been found in many organic diseases.


The report of Da Costa shows that patients recovered from the more severe symptoms when removed from the strenuous activity or sustained lifestyle that caused them.

Other treatments evident from the previous studies were improving physique and posture, appropriate levels of exercise where possible, wearing loose clothing about the waist, and avoiding postural changes such as stooping, or lying on the left or right side, or the back in some cases, which relieved some of the palpitations and chest pains, and standing up slowly can prevent the faintness associated with postural or orthostatic hypotension in some cases.


Da Costa’s syndrome is named for the surgeon Jacob Mendes Da Costa,[12] who first observed it in soldiers during the American Civil War. At the time it was proposed, Da Costa’s syndrome was seen as a very desirable[13] physiological explanation for soldier’s heart. Use of the term “Da Costa’s syndrome” peaked in the early 20th century. Towards the mid-century, the condition was generally re-characterized as a form ofneurosis.[14] It was initially classified as “F45.3? (under somatoform disorder of the heart and cardiovascular system) in ICD-10,[15] and is now classified under “somatoform autonomic dysfunction”.

Da Costa’s syndrome involves a set of symptoms which include left-sided chest pains, palpitations, breathlessness, and fatigue in response to exertion. Earl de Grey who presented four reports on British soldiers with these symptoms between 1864 and 1868, and attributed them to the heavy weight of military equipment being carried in knapsacks which were tightly strapped to the chest in a manner which constricted the action of the heart. Also in 1864, Henry Harthorme observed soldiers in the American Civil War who had similar symptoms which were attributed to “long-continued overexertion, with deficiency of rest and often nourishment”, and indefinite heart complaints were attributed to lack of sleep and bad food. In 1870 Arthur Bowen Myers of the Coldstream Guards also regarded the accoutrements as the cause of the trouble, which he called neurocirculatory asthenia and cardiovascular neurosis.[16][17]

J. M. Da Costa’s study of 300 soldiers reported similar findings in 1871 and added that the condition often developed and persisted after a bout offever or diarrhoea. He also noted that the pulse was always greatly and rapidly influenced by position, such as stooping or reclining. A typical case involved a man who was on active duty for several months or more and contracted an annoying bout of diarrhoea or fever, and then, after a short stay in hospital, returned to active service. The soldier soon found that he could not keep up with his comrades in the exertions of a soldier’s life as previously, because he would get out of breath, and would get dizzy, and have palpitations and pains in his chest, yet upon examination some time later he appeared generally healthy.[8] In 1876 surgeon Arthur Davy attributed the symptoms to military drill where “over-expanding the chest, caused dilatation of the heart, and so induced irritability”.[18]

Since then, a variety of similar or partly similar conditions have been described.


  1. a b “2008 ICD-9-CM Diagnosis 306.* – Physiological malfunction arising from mental factors”2008 ICD-9-CM Volume 1 Diagnosis Codes. Retrieved 2008-05-26. “Neurocirculatory asthenia is most typically seen as a form of anxiety disorder.”
  2. ^ Engel CC (2004). “Post-war syndromes: illustrating the impact of the social psyche on notions of risk, responsibility, reason, and remedy”. J Am Acad Psychoanal Dyn Psychiatry 32 (2): 321–34; discussion 335–43.PMID 15274499.
  3. ^ Clark MR, Treisman GL (eds.) (2004). Pain And Depression: An Interdisciplinary Patient-centered Approach (Series: Advances in Psychosomatic Medicine, vol. 25). Basel: Karger. p. 176. ISBN 3-8055-7742-7.
  4. ^ “Neurasthenia”Rare Disease Database. National Organization for Rare Disorders, Inc. 2005. Retrieved 2008-05-28.
  5. ^ Paul Wood, MD, PhD (1941-05-24). “Da Costa’s Syndrome (or Effort Syndrome). Lecture I”Lectures to the Royal College of Physicians of London. British Medical Journal. pp. 1(4194): 767–772. Retrieved 2008-05-28.
  6. ^ Cohen ME, White PD (1951). “Life situations, emotions, and neurocirculatory asthenia (anxiety neurosis, neurasthenia, effort syndrome)”Psychosom Med 13 (6): 335–57. PMID 14892184. Retrieved 2008-05-28.
  7. a b Paul O (1987). “Da Costa’s syndrome or neurocirculatory asthenia”Br Heart J 58 (4): 306–15. PMID 3314950.
  8. a b Da Costa, Jacob Medes (January 1871). “On irritable heart; a clinical study of a form of functional cardiac disorder and its consequences”. The American Journal of the Medical Sciences (61): p.18–52.
  9. ^ Selian, Neuhoff (1917). “XX”. Clinical Cardiology. New York: MacMillan. p. 255.; cited on “Da Costa’s Syndrome”. vlib.us. Retrieved 2007-12-18.
  10. ^ “Dorlands Medical Dictionary:Da Costa syndrome”. Retrieved 2008-05-26.
  11. ^ Online ‘Mendelian Inheritance in Man’ (OMIM) Orthostatic Intolerance -604715
  12. ^ “Da Costa’s syndrome”. Retrieved 2007-12-18. Unknown parameter|pub;isher= ignored (help)
  13. ^ National Research Council; Committee on Veterans’ Compensation for Posttraumatic Stress Disorder (2007). PTSD Compensation and Military Service: Progress and Promise. Washington, D.C: National Academies Press. p. 35. ISBN 0-309-10552-8. Retrieved 2008-05-26. “Being able to attribute soldier’s heart to a physical cause provided an “honorable solution” to all vested parties, as it left the self-respect of the soldier intact and it kept military authorities from having to explain the “psychological breakdowns in previously brave soldiers” or to account for “such troublesome issues as cowardice, low unit morale, poor leadership, or the meaning of the war effort itself” (Van der Kolk et al., as cited in Lasiuk, 2006).”
  14. ^ Edmund D., MD Pellegrino; Caplan, Arthur L.; Mccartney, James Elvins; Dominic A. Sisti (2004). Health, Disease, and Illness: Concepts in Medicine. Washington, D.C: Georgetown University Press. p. 165.ISBN 1-58901-014-0.
  15. ^ World Health Organization (1992). Icd-10: The Icd-10 Classification of Mental and Behavioural Disorders : Clinical Descriptions and Diagnostic Guidelines. Geneva: World Health Organization. p. 168. ISBN 92-4-154422-8.
  16. ^ Goetz, C.G.; Turner C.M. and Aminoff M.J. editors (1993). Handbook of Clinical Neurology. B.V.: Elsevier Science Publishers. pp. 429–447.
  17. ^ Mackenzie, Sir James; R.M.Wilson, Philip Hamill, Alexander Morrison, O.Leyton, & Florence A.Stoney (1916-01-18). “Discussions On The Soldier’s Heart”. Proceedings of the Royal Society of Medicine, Therapeutical and Pharmacological Section 9: 27–60.
  18. ^ Goetz, C.G.; Turner C.M. and Aminoff M.J. editors (1993). Handbook of Clinical Neurology. B.V.: Elsevier Science Publishers. pp. 429–447.


Somatoform disorders

Anxiety disorders

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