Sudden Dyspnea

Cardiovascular System

{"ops":[{"insert":"Diagnosis and reasoning"},{"insert":"\n","attributes":{"header":1}},{"insert":"Sudden onset dyspnea in a background of recent surgery should raise the suspicion of either an acute coronary syndrome (ACS) or a pulmonary embolism (PE).\n\nThe absence of a chest pain or angina and the lack of risk factors for an ACS are points against this diagnosis. However, note that ACS may present in an atypical manner, particularly in women.\n\nIn general, individual clinical signs and symptoms do not allow exclusion or confirmation of PE. However, the history of recent major surgery and malignancy increase the probability of this diagnosis.\n\nHer ECGs show no evidence of ischemia and thus exclude an ACS. The isolated sinus tachycardia may be secondary to a PE, but is too non-specific a finding.\n\nPlasma D-dimer levels are elevated in thi"}]}

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