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Anomalous left coronary artery from the pulmonary artery

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Anomalous left coronary artery from the pulmonary artery ( ALCAPA, Bland-White-Garland syndrome or White-Garland syndrome ) is a rare congenital anomaly occurring in approximately 1 in 300,000 liveborn children. The diagnosis comprises between 0.24 and 0.46% of all cases of congenital heart disease . The anomalous left coronary artery (LCA) usually arises from the pulmonary artery instead of the aortic sinus . In fetal life, the high pressure in the pulmonic artery and the fetal shunts enable oxygen-rich blood to flow in the LCA. By the time of birth, the pressure will decrease in the pulmonic artery and the child will have a postnatal circulation. The myocardium, which is supplied by the LCA, will therefore be dependent on collateral blood flow from the other coronary arteries, mainly the RCA. Because the pressure in RCA exceeds the pressure in LCA a collateral circulation will increase. This situation ultimately can lead to blood flowing from the RCA into the LCA retrograde and into the pulmonary artery, thus forming a left-to-right shunt .

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46-546: The development of symptoms in ALCAPA depends heavily on the amount of collateral development. When few collaterals are present, the myocardium will not get enough oxygen and will become ischemic. The symptoms in an infant with ALCAPA include signs of heart failure such as dyspnea and tachypnea , but sometimes the development is more subtle and the first sign of ischemia can be crying during feeding, sweating, failure to thrive and irritability. Approximately 90% of patients die within

92-598: A "conversion disorder" by the DSM-IV, a psychogenic disease is a condition in which mental stressors cause physical symptoms matching other disorders. The manifestation of physical symptoms without biologically identifiable cause results from disruptions in normal brain function due to psychological stress. During a psychogenic episode, neuroimaging has shown that neural circuits affecting functions such as emotion, executive functioning, perception, movement, and volition are inhibited. These disruptions become strong enough to prevent

138-497: A beneficial effect. Other important or common causes of shortness of breath include cardiac tamponade , anaphylaxis , interstitial lung disease , panic attacks , and pulmonary hypertension . It is more common among people with relatively small lungs. Around 2/3 of women experience shortness of breath as a part of a normal pregnancy . Cardiac tamponade presents with dyspnea, tachycardia, elevated jugular venous pressure, and pulsus paradoxus . The gold standard for diagnosis

184-576: A cause of dyspnea. Menstruation, particularly if excessive, can contribute to anaemia and to consequential dyspnea in women. Headaches are a symptom of dyspnea in patients with anaemia. Some patients report a numb sensation in their head, and others have reported blurred vision caused by hypotension behind the eye due to a lack of oxygen and pressure; these patients have reported severe head pains, which can lead to permanent brain damage. Symptoms can include loss of concentration, focus, fatigue, language faculty impairment, and memory loss. Shortness of breath

230-433: A chronic productive cough. An acute exacerbation presents with increased shortness of breath and sputum production. COPD is a risk factor for pneumonia ; thus this condition should be ruled out. In an acute exacerbation treatment is with a combination of anticholinergics , beta 2 -adrenoceptor agonists , steroids and possibly positive pressure ventilation . Asthma is the most common reason for presenting to

276-423: A direct visualisation of the arteries as well as the myocardial viability. Surgery is indicated in all patients with ALCAPA independent of symptoms, since reconnection of the anomalous left coronary artery to the aortic root is crucial to the perfusion of the myocardium dependent on that vessel. Several surgical techniques have been described in ALCAPA repair, including reimplantation of the left coronary artery into

322-596: A fan may possibly be beneficial. Cognitive behavioural therapy may also be helpful. For people with severe, chronic, or uncontrollable breathlessness, non-pharmacological approaches to treating breathlessness may be combined with medication. For people who have cancer that is causing the breathlessness, medications that have been suggested include opioids, benzodiazepines, oxygen, and steroids. Results of recent systematic reviews and meta-analyses found opioids were not necessarily associated with more effectiveness in treatment for patients with advanced cancer. Ensuring that

368-804: A fever, dry cough, loss of smell and taste, and in moderate to severe cases, shortness of breath. Congestive heart failure frequently presents with shortness of breath with exertion, orthopnea , and paroxysmal nocturnal dyspnea . It affects between 1 and 2% of the general United States population and occurs in 10% of those over 65 years old. Risk factors for acute decompensation include high dietary salt intake, medication noncompliance, cardiac ischemia, abnormal heart rhythms , kidney failure , pulmonary emboli, hypertension , and infections. Treatment efforts are directed towards decreasing lung congestion. People with chronic obstructive pulmonary disease (COPD), most commonly emphysema or chronic bronchitis , frequently have chronic shortness of breath and

414-522: A large pulmonary embolism. A chest x-ray is useful to confirm or rule out a pneumothorax, pulmonary edema , or pneumonia . Spiral computed tomography with intravenous radiocontrast is the imaging study of choice to evaluate for pulmonary embolism. The primary treatment of shortness of breath is directed at its underlying cause. Extra supplemental oxygen is effective in those with hypoxia ; however, this has no effect in those with normal blood oxygen saturations . Individuals can benefit from

460-463: A pathophysiological basis the causes can be divided into: (1) an increased awareness of normal breathing such as during an anxiety attack, (2) an increase in the work of breathing and (3) an abnormality in the ventilatory or respiratory system. Ischemic strokes, hemorrhages, tumors, infections, seizures, and traumas at the brain stem can also cause shortness of breath, making them the only neurological causes of shortness of breath. The tempo of onset and

506-432: A patient does not display typical markers of a disorder that would normally show up from medical exams, physicians may diagnose a patient's symptoms as being psychogenic. Research into understanding psychogenic disorders has led to the development of electronic diagnostic tests for ruling out the usual biological markers of a disorder, as well as new clinical observation procedures. A test a physician may employ for identifying

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552-554: A psychogenic disorder would be to see if the symptom changes with suggestion, for example a patient may be told to use a tuning fork to aid symptoms in a movement disorder. Despite the understanding of psychogenic symptoms, it is not assumed that all medically unexplained illness must have a psychological cause. It remains possible that genetic , biochemical, electrophysiological , or other abnormalities may be present which we do not understand and cannot identify. Some patients may have their symptoms misdiagnosed as psychogenic even with

598-405: A pulmonary embolism in those who are at low risk, is not of much value if it is positive, as it may be positive in a number of conditions that lead to shortness of breath. A low level of brain natriuretic peptide is useful in ruling out congestive heart failure; however, a high level, while supportive of the diagnosis, could also be due to advanced age, kidney failure , acute coronary syndrome, or

644-454: A result of vocal cord dysfunction (VCD). Sarcoidosis is an inflammatory disease of unknown etiology that generally presents with dry cough, fatigue, and shortness of breath, although multiple organ systems may be affected, with involvement of sites such as the eyes, the skin and the joints. Different physiological pathways may lead to shortness of breath including via ASIC chemoreceptors , mechanoreceptors , and lung receptors . It

690-592: A variety of physical therapy interventions. Persons with neurological/neuromuscular abnormalities may have breathing difficulties due to weak or paralyzed intercostal, abdominal and/or other muscles needed for ventilation . Some physical therapy interventions for this population include active assisted cough techniques, volume augmentation such as breath stacking, education about body position and ventilation patterns and movement strategies to facilitate breathing. Pulmonary rehabilitation may alleviate symptoms in some people, such as those with COPD, but will not cure

736-405: Is / d ɪ s p ˈ n iː ə / disp- NEE -ə , with the p expressed and the stress on the /niː/ syllable. But pronunciations with a silent p in pn (as also in pneumo- ) are common ( / d ɪ s ˈ n iː ə / or / ˈ d ɪ s n i ə / ), as are those with the stress on the first syllable ( / ˈ d ɪ s p n i ə / or / ˈ d ɪ s n i ə / ). In English,

782-409: Is ultrasound . Anaphylaxis typically begins over a few minutes in a person with a previous history of the same. Other symptoms include urticaria , throat swelling , and gastrointestinal upset. The primary treatment is epinephrine . Interstitial lung disease presents with gradual onset of shortness of breath typically with a history of a predisposing environmental exposure. Shortness of breath

828-463: Is "shortness of breath". The American Thoracic Society defines dyspnea as: A subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity. Other definitions describe it as "difficulty in breathing", "disordered or inadequate breathing", "uncomfortable awareness of breathing", and as the experience of "breathlessness" (which may be either acute or chronic). While shortness of breath

874-570: Is a lack of evidence to recommend midazolam , nebulised opioids, the use of gas mixtures, or cognitive-behavioral therapy yet. Non-pharmacological interventions provide key tools for the management of breathlessness. Potentially beneficial approaches include active management of psychosocial issues ( anxiety , depression , etc.), and implementation of self-management strategies, such as physical and mental relaxation techniques , pacing techniques, energy conservation techniques, learning exercises to control breathing, and education . The use of

920-626: Is common in people with cancer and may be caused by numerous different factors. In people with advanced cancer, periods of time with severe shortness of breath may occur, along with a more continuous feeling of breathlessness. Treatments include both nonpharmacological and pharmacological interventions. Nonpharmacological interventions that showed improvement in breathlessness include fans, behavioral and pyschoeducational approaches, exercise and pulmonary rehabilitation. Integrative medicine options include acupuncture/acupressure/reflexology, meditation and music therapy, with acupuncture/reflexology found to have

966-424: Is due to asthma , pneumonia , cardiac ischemia , COVID-19 , interstitial lung disease , congestive heart failure , chronic obstructive pulmonary disease , or psychogenic causes, such as panic disorder and anxiety (see Psychogenic disease and Psychogenic pain ) . The best treatment to relieve or even remove shortness of breath typically depends on the underlying cause. Dyspnea, in medical terms,

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1012-400: Is easily used. It can provide direct visualisation of the anomalous coronary artery and other associated structural abnormalities, and it can also assess myocardial function. The use of pulse and color-flow doppler can sometimes visualise reversal flow in the pulmonic artery. Other non-invasive methods used are computed tomography (CT) as well as magnetic resonance imaging (MRI), which enable

1058-579: Is generally caused by disorders of the cardiac or respiratory system , others such as the neurological , musculoskeletal , endocrine , hematologic , and psychiatric systems may be the cause. DiagnosisPro, an online medical expert system , listed 497 distinct causes in October 2010. The most common cardiovascular causes are myocardial infarction and heart failure while common pulmonary causes include chronic obstructive pulmonary disease , asthma , pneumothorax , pulmonary edema and pneumonia . On

1104-479: Is often the only symptom in those with tachydysrhythmias . Panic attacks typically present with hyperventilation , sweating, and numbness . They are however a diagnosis of exclusion . Neurological conditions such as spinal cord injury, phrenic nerve injuries, Guillain–Barré syndrome , amyotrophic lateral sclerosis , multiple sclerosis and muscular dystrophy can all cause an individual to experience shortness of breath. Shortness of breath can also occur as

1150-399: Is often used to assess the clinical probability. Treatment, depending on severity of symptoms, typically starts with anticoagulants ; the presence of ominous signs (low blood pressure) may warrant the use of thrombolytic drugs . Anemia that develops gradually usually presents with exertional dyspnea, fatigue, weakness, and tachycardia . It may lead to heart failure . Anaemia is often

1196-939: Is the primary reason 3.5% of people present to the emergency department in the United States. Of these individuals, approximately 51% are admitted to the hospital and 13% are dead within a year. Some studies have suggested that up to 27% of hospitalized people develop dyspnea, while in dying patients 75% will experience it. Acute shortness of breath is the most common reason people requiring palliative care visit an emergency department. Up to 70% of adults with advanced cancer also experience dyspnoea. English dyspnea comes from Latin dyspnoea , from Greek dyspnoia , from dyspnoos , which literally means "disordered breathing". Its combining forms ( dys- + -pnea ) are familiar from other medical words, such as dysfunction ( dys- + function ) and apnea ( a- + -pnea ). The most common pronunciation in medical English

1242-473: Is thought that three main components contribute to dyspnea: afferent signals, efferent signals, and central information processing. It is believed the central processing in the brain compares the afferent and efferent signals; and dyspnea results when a "mismatch" occurs between the two: such as when the need for ventilation (afferent signaling) is not being met by physical breathing (efferent signaling). Afferent signals are sensory neuronal signals that ascend to

1288-421: The respiratory muscles . The most important respiratory muscle is the diaphragm . Other respiratory muscles include the external and internal intercostal muscles , the abdominal muscles and the accessory breathing muscles. As the brain receives its plentiful supply of afferent information relating to ventilation, it is able to compare it to the current level of respiration as determined by the efferent signals. If

1334-529: The aorta, creation of an intra-pulmonary buffer (Takeuchi procedure), and bypass grafting. Establishment of a dual coronary system is the preferred method and if possible reimplantation of the artery is the approach of choice. Surgery on the mitral valve at the same time as ALCAPA correction is controversial. Even if surgery is carried out in adulthood, reestablishment of a two-coronary system can make malignant arrhythmia disappear. No difference in long-term mortality or left ventricle function has been shown between

1380-414: The balance between side effects and adverse effects from medications and potential improvements from medications needs to be carefully considered before prescribing medication. The use of systematic corticosteriods in palliative care for people with cancer is common, however the effectiveness and potential adverse effects of this approach in adults with cancer has not been well studied. Shortness of breath

1426-459: The brain from voluntarily allowing certain actions (e.g. moving a limb). When the brain is unable to signal to the body to perform an action voluntarily, physical symptoms of a disorder arise. Examples of diseases that are deemed to be psychogenic in origin include psychogenic seizures , psychogenic polydipsia , psychogenic tremor , and psychogenic pain . The term psychogenic disease is often used similarly to psychosomatic disease . However,

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1472-450: The brain. Afferent neurons significant in dyspnea arise from a large number of sources including the carotid bodies , medulla , lungs , and chest wall . Chemoreceptors in the carotid bodies and medulla supply information regarding the blood gas levels of O 2 , CO 2 and H . In the lungs, juxtacapillary (J) receptors are sensitive to pulmonary interstitial edema, while stretch receptors signal bronchoconstriction. Muscle spindles in

1518-461: The breath. It however may atypically present with shortness of breath alone. Risk factors include old age, smoking , hypertension , hyperlipidemia , and diabetes . An electrocardiogram and cardiac enzymes are important both for diagnosis and directing treatment. Treatment involves measures to decrease the oxygen requirement of the heart and efforts to increase blood flow. People that have been infected by COVID-19 may have symptoms such as

1564-434: The chest wall signal the stretch and tension of the respiratory muscles. Thus, poor ventilation leading to hypercapnia , left heart failure leading to interstitial edema (impairing gas exchange), asthma causing bronchoconstriction (limiting airflow) and muscle fatigue leading to ineffective respiratory muscle action could all contribute to a feeling of dyspnea. Efferent signals are the motor neuronal signals descending to

1610-865: The chest, jugular venous distension , and tracheal deviation. The symptoms of pneumonia are fever , productive cough , shortness of breath, and pleuritic chest pain . Inspiratory crackles may be heard on exam. A chest x-ray can be useful to differentiate pneumonia from congestive heart failure . As the cause is usually a bacterial infection, antibiotics are typically used for treatment. Pulmonary embolism classically presents with an acute onset of shortness of breath. Other presenting symptoms include pleuritic chest pain , cough, hemoptysis , and fever . Risk factors include deep vein thrombosis , recent surgery, cancer , and previous thromboembolism . It must always be considered in those with acute onset of shortness of breath owing to its high risk of mortality. Diagnosis, however, may be difficult and Wells Score

1656-405: The degree of shortness of breath. It may be subjectively rated on a scale from 1 to 10 with descriptors associated with the number (The Modified Borg Scale ). The MRC breathlessness scale suggests five grades of dyspnea based on the circumstances and severity in which it arises. A number of labs may be helpful in determining the cause of shortness of breath. D-dimer , while useful to rule out

1702-417: The different techniques to re-establish a two-coronary system. An exception is the ligation of the anomalous left coronary artery, which has a higher mortality. The development of surgical techniques and restoring of two-artery circulation has dramatically increased survival. Close long-term follow-up of these patients is necessary, to diagnose a recurrent left ventricle dysfunction, but also to better understand

1748-804: The duration of dyspnea are useful in knowing the etiology of dyspnea. Acute shortness of breath is usually connected with sudden physiological changes, such as laryngeal edema , bronchospasm , myocardial infarction , pulmonary embolism , or pneumothorax . Patients with COPD and idiopathic pulmonary fibrosis (IPF) have a mild onset and gradual progression of dyspnea on exertion, punctuated by acute exacerbations of shortness of breath. In contrast, most asthmatics do not have daily symptoms, but have intermittent episodes of dyspnea, cough, and chest tightness that are usually associated with specific triggers, such as an upper respiratory tract infection or exposure to allergens. Acute coronary syndrome frequently presents with retrosternal chest discomfort and difficulty catching

1794-624: The emergency room with shortness of breath. It is the most common lung disease in both developing and developed countries affecting about 5% of the population. Other symptoms include wheezing , tightness in the chest, and a non productive cough. Inhaled corticosteroids are the preferred treatment for children, however these drugs can reduce the growth rate. Acute symptoms are treated with short-acting bronchodilators. Pneumothorax presents typically with pleuritic chest pain of acute onset and shortness of breath not improved with oxygen. Physical findings may include absent breath sounds on one side of

1840-448: The first year if left untreated. Patients having a significant collateral circulation can live to adulthood in rare cases, but often insufficient circulation will cause them to develop chronic ischemia, having a risk for sudden cardiac arrest, heart failure or malignant arrhythmia. The mechanism of patient survival to adulthood is not fully understood. Historically ALCAPA was diagnosed with conventional angiography . Today echocardiography

1886-531: The intensity of its distinct sensations, the degree of distress and discomfort involved, and its burden or impact on the patient's activities of daily living . Distinct sensations include effort/work to breathe, chest tightness or pain, and "air hunger" (the feeling of not enough oxygen). The tripod position is often assumed to be a sign. Dyspnea is a normal symptom of heavy physical exertion but becomes pathological if it occurs in unexpected situations, when resting or during light exertion. In 85% of cases it

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1932-802: The level of respiration is inappropriate for the body's status then dyspnea might occur. There is also a psychological component to dyspnea, as some people may become aware of their breathing in such circumstances but not experience the typical distress of dyspnea. The initial approach to evaluation begins by assessment of the airway, breathing, and circulation followed by a medical history and physical examination . Signs and symptoms that represent significant severity include hypotension , hypoxemia , tracheal deviation , altered mental status, unstable dysrhythmia , stridor , intercostal indrawing, cyanosis , tripod positioning , pronounced use of accessory muscles ( sternocleidomastoid , scalenes ) and absent breath sounds. A number of scales may be used to quantify

1978-536: The natural evolution of a corrected heart. Dyspnea Shortness of breath ( SOB ), known as dyspnea (in AmE ) or dyspnoea (in BrE ), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing

2024-572: The term psychogenic usually implies that psychological factors played a key causal role in the development of the illness. The term psychosomatic is often used more broadly to describe illnesses with a known medical cause where psychological factors may nonetheless play a role (e.g., asthma as exacerbated by anxiety ). With the advent of medical screening technologies such as electroencephalography (EEG) monitoring, psychogenic diseases are being diagnosed more frequently, as medical professionals have increasingly precise tools to evaluate patients. When

2070-528: The underlying disease. Fan therapy to the face has been shown to relieve shortness of breath in patients with a variety of advanced illnesses including cancer. The mechanism of action is thought to be stimulation of the trigeminal nerve. Systemic immediate release opioids are beneficial in emergently reducing the symptom severity of shortness of breath due to both cancer and non cancer causes; long-acting/sustained-release opioids are also used to prevent/continue treatment of dyspnea in palliative setting. There

2116-483: The various -pnea - suffixed words commonly used in medicine do not follow one clear pattern as to whether the /niː/ syllable or the one preceding it is stressed; the p is usually expressed but is sometimes silent depending on the word. The following collation or list shows the preponderance of how major dictionaries pronounce and transcribe them (less-used variants are omitted): Shortness Of Breath (Dyspnea) StatPearls Psychogenic disease Classified as

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