Da costa's syndrome
Encyclopedia
Da Costa's syndrome, which was colloquially known as soldier's heart, is a syndrome
Syndrome
In medicine and psychology, a syndrome is the association of several clinically recognizable features, signs , symptoms , phenomena or characteristics that often occur together, so that the presence of one or more features alerts the physician to the possible presence of the others...

 with a set of symptom
Symptom
A symptom is a departure from normal function or feeling which is noticed by a patient, indicating the presence of disease or abnormality...

s that are similar to those of heart disease
Heart disease
Heart disease, cardiac disease or cardiopathy is an umbrella term for a variety of diseases affecting the heart. , it is the leading cause of death in the United States, England, Canada and Wales, accounting for 25.4% of the total deaths in the United States.-Types:-Coronary heart disease:Coronary...

, though a physical examination
Physical examination
Physical examination or clinical examination is the process by which a doctor investigates the body of a patient for signs of disease. It generally follows the taking of the medical history — an account of the symptoms as experienced by the patient...

 does not reveal any physiological abnormalities. In modern times, Da Costa's syndrome is considered the manifestation of an anxiety disorder
Anxiety disorder
Anxiety disorder is a blanket term covering several different forms of abnormal and pathological fear and anxiety. Conditions now considered anxiety disorders only came under the aegis of psychiatry at the end of the 19th century. Gelder, Mayou & Geddes explains that anxiety disorders are...

 and treatment is primarily behavioral, involving modifications to lifestyle and daily exertion.

The condition was named after Jacob Mendes Da Costa
Jacob Mendes Da Costa
Jacob Mendes Da Costa, or Jacob Mendez Da Costa was an American physician and surgeon....

, who investigated and described the disorder during the American Civil War
American Civil War
The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

. It is also variously known as cardiac neurosis, chronic asthenia, effort syndrome, functional cardiovascular disease, neurocirculatory asthenia, primary neurasthenia, subacute asthenia and irritable heart.

Classification

The World Health Organization
World Health Organization
The World Health Organization is a specialized agency of the United Nations that acts as a coordinating authority on international public health. Established on 7 April 1948, with headquarters in Geneva, Switzerland, the agency inherited the mandate and resources of its predecessor, the Health...

 classifies this condition as a somatoform
Somatoform disorder
In psychology, a somatoform disorder is a mental disorder characterized by physical symptoms that suggest physical illness or injury - symptoms that cannot be explained fully by a general medical condition, direct effect of a substance, or attributable to another mental disorder . The symptoms that...

 autonomic dysfunction
Dysautonomia
Dysautonomia is a broad term that describes any disease or malfunction of the autonomic nervous system. This includes postural orthostatic tachycardia syndrome , inappropriate sinus tachycardia , vasovagal syncope, mitral valve prolapse dysautonomia, pure autonomic failure, neurocardiogenic...

 (a type of psychosomatic disorder) in their ICD-10
ICD-10
The International Statistical Classification of Diseases and Related Health Problems, 10th Revision is a medical classification list for the coding of diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases, as maintained by the...

 coding system. In their ICD
ICD
The International Statistical Classification of Diseases and Related Health Problems is a medical classification that provides codes to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or disease...

-9 system, it was classified under non-psychotic mental disorders. The syndrome is also frequently interpreted as one of a number of imprecisely characterized "postwar syndromes".

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. Da Costa himself called it irritable heart 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." None of these terms have widespread use.

Symptoms

Symptoms of Da Costa's syndrome include fatigue upon exertion, shortness of breath
Dyspnea
Dyspnea , shortness of breath , or air hunger, is the subjective symptom of breathlessness.It is a normal symptom of heavy exertion but becomes pathological if it occurs in unexpected situations...

, palpitation
Palpitation
A palpitation is an abnormality of heartbeat that causes a conscious awareness of its beating, whether it is too slow, too fast, irregular, or at its normal frequency. The word may also refer to this sensation itself...

s, sweating, and chest pain
Chest pain
Chest pain may be a symptom of a number of serious conditions and is generally considered a medical emergency. Even though it may be determined that the pain is non-cardiac in origin, this is often a diagnosis of exclusion made after ruling out more serious causes of the pain.-Differential...

. Physical examination reveals no physical abnormalities causing the symptoms.

Causes

Da Costa's syndrome is generally considered a physical manifestation of an anxiety disorder
Anxiety disorder
Anxiety disorder is a blanket term covering several different forms of abnormal and pathological fear and anxiety. Conditions now considered anxiety disorders only came under the aegis of psychiatry at the end of the 19th century. Gelder, Mayou & Geddes explains that anxiety disorders are...

.

Diagnosis

Although it is listed in the ICD-10
ICD-10
The International Statistical Classification of Diseases and Related Health Problems, 10th Revision is a medical classification list for the coding of diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases, as maintained by the...

 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
Orthostatic intolerance
Orthostatic intolerance is a subcategory of dysautonomia, a disorder of the autonomic nervous system occurring when an individual stands up....

 observed by Da Costa has since also been found in patients diagnosed with chronic fatigue syndrome
Chronic fatigue syndrome
Chronic fatigue syndrome is the most common name used to designate a significantly debilitating medical disorder or group of disorders generally defined by persistent fatigue accompanied by other specific symptoms for a minimum of six months, not due to ongoing exertion, not substantially...

, postural orthostatic tachycardia syndrome
Postural orthostatic tachycardia syndrome
Postural orthostatic tachycardia syndrome is a condition of dysautonomia, more specifically orthostatic intolerance, in which a change from the supine position to an upright position causes an abnormally large increase in heart rate, called tachycardia...

 (POTS) and mitral valve prolapse syndrome. In the 21st century, this intolerance is classified as a neurological condition. Exercise intolerance
Exercise intolerance
Exercise intolerance is a condition where the patient is unable to do physical exercise at the level or for the duration that would be expected of someone in his or her general physical condition, or experiences unusually severe post-exercise pain, fatigue, or other negative effects...

 has since been found in many organic disease
Organic disease
An organic disease is one which involves or affects physiology or bodily organs. A disease in which there is a physiological change to some tissue or organ of the body....

s.

Treatment

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
Orthostatic hypotension
Orthostatic hypotension, also known as postural hypotension, orthostasis, and colloquially as head rush or dizzy spell, is a form of hypotension in which a person's blood pressure suddenly falls when the person stands up or stretches. The decrease is typically greater than 20/10 mm Hg, and may be...

 in some cases.

History

Da Costa's syndrome is named for the surgeon Jacob Mendes Da Costa
Jacob Mendes Da Costa
Jacob Mendes Da Costa, or Jacob Mendez Da Costa was an American physician and surgeon....

, who first observed it in soldiers during the American Civil War
American Civil War
The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

. At the time it was proposed, Da Costa's syndrome was seen as a very desirable 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 of neurosis
Neurosis
Neurosis is a class of functional mental disorders involving distress but neither delusions nor hallucinations, whereby behavior is not outside socially acceptable norms. It is also known as psychoneurosis or neurotic disorder, and thus those suffering from it are said to be neurotic...

. It was initially classified as "F45.3" (under somatoform disorder
Somatoform disorder
In psychology, a somatoform disorder is a mental disorder characterized by physical symptoms that suggest physical illness or injury - symptoms that cannot be explained fully by a general medical condition, direct effect of a substance, or attributable to another mental disorder . The symptoms that...

 of the heart and cardiovascular system) in ICD-10
ICD-10
The International Statistical Classification of Diseases and Related Health Problems, 10th Revision is a medical classification list for the coding of diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases, as maintained by the...

, 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
Earl de Grey
The titles of Marquess De Grey and Earl De Grey were created in the peerages of Great Britain and the United Kingdom respectively for descendants of the Greys, Duke of Kent and Earls of Kent, created 1465, who were unrelated or extremely distantly related to the family of the Earls Grey created...

 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
American Civil War
The American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...

 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
Coldstream Guards
Her Majesty's Coldstream Regiment of Foot Guards, also known officially as the Coldstream Guards , is a regiment of the British Army, part of the Guards Division or Household Division....

 also regarded the accoutrements as the cause of the trouble, which he called neurocirculatory asthenia and cardiovascular neurosis.

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 of fever
Fever
Fever is a common medical sign characterized by an elevation of temperature above the normal range of due to an increase in the body temperature regulatory set-point. This increase in set-point triggers increased muscle tone and shivering.As a person's temperature increases, there is, in...

 or diarrhoea. He also noted that the pulse
Pulse
In medicine, one's pulse represents the tactile arterial palpation of the heartbeat by trained fingertips. The pulse may be palpated in any place that allows an artery to be compressed against a bone, such as at the neck , at the wrist , behind the knee , on the inside of the elbow , and near the...

 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. 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".

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