HUGO T. ENGELHARDT, M.D.; WILLIAM A. SODEMAN, M.D., F.A.C.P.
The physician, realizing that syncope is most commonly not cardiac in origin, often gives it little weight in cardiac diagnosis, unless bradycardia or extreme tachycardia is present. Relationship to physical effort is an additional circumstance which should particularly draw attention to the heart for an explanation.
The term syncope implies loss of consciousness due to cerebral ischemia. The essence of such an attack, ischemia, implies an inadequate flow of blood to the brain and one would look for an explanation, according to Lewis,1 in a deficient input of blood into the heart, of vascular origin, precardiac in the sense that
ENGELHARDT HT, SODEMAN WA. SYNCOPE ON EXERTION: RELATIONSHIP TO CORONARY ARTERY DISEASE1. Ann Intern Med. 1945;22:225–233. doi: 10.7326/0003-4819-22-2-225
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Published: Ann Intern Med. 1945;22(2):225-233.
Cardiology, Coronary Heart Disease, Neurology.
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