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Dyspnea () (Latin dyspnoea, Greek dyspnoia from dyspnoos, short of breath) or shortness of breath (SOB) is perceived difficulty breathing or pain on breathing. It is a common symptom of numerous medical disorders.
Dyspnea on exertion (DOE or exertional dyspnea) indicates dyspnea that occurs (or worsens) during physical activity.
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Causes
Heavy exercise (of course)
even light exercise by asthmatics
acute exacerbation of COPD
Diseases of lung parenchyma and pleura
acute exacerbation of COPD
Pulmonary vascular diseases
Superior Vena Cava Syndrome
Ischemic heart disease, i.e. due to heart attacks
disorders in adjacent organs
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Related terms
orthopnea, dyspnea occurring in a recumbent position
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