LOUIS H. SIGLER, M.D.
In previous communications1, 2, 3 I reported the incidence and the degree of cardiac slowing induced by the carotid sinus reflex in a series of 345 cases. The cases were divided into five groups as follows: Group I, coronary artery disease with definite myocardial damage; Group II, hypertension and hypertensive heart disease; Group III, rheumatic heart disease; Group IV, individuals with cardiac symptoms but no demonstrable cardiac disease; Group V, general constitutional disease (non-cardiac).
It was shown that the order of frequency and degree of response were Groups I, II, III, V and IV—the first showing the highest frequency and
SIGLER LH. FURTHER OBSERVATIONS ON THE CAROTID SINUS REFLEX1. Ann Intern Med. ;9:1380–1392. doi: 10.7326/0003-4819-9-10-1380
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Published: Ann Intern Med. 1936;9(10):1380-1392.
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