Observations on the Delayed First Heart Sound in Mitral Stenosis and Hypertension | Zendy

Arnold M. Weissler | Zendy; James J. Leonard | Zendy; James V. Warren | Zendy

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Observations on the Delayed First Heart Sound in Mitral Stenosis and Hypertension

Author(s) -

Arnold M. Weissler,

James J. Leonard,

James V. Warren

Publication year - 1958

Publication title -

circulation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.795

H-Index - 607

eISSN - 1524-4539

pISSN - 0009-7322

DOI - 10.1161/01.cir.18.2.165

Subject(s) - medicine , cardiology , sound (geography) , stenosis , mitral valve stenosis , heart disease , valvular heart disease , heart sounds , heart murmur , geomorphology , geology

The measurement of the time between the onset of ventricular depolarization and the first heart sound, the Q-1 interval, has been employed in the phonocardiographic evaluation of patients with rheumatic heart disease. Prolongation of this interval has been noted frequently in patients with mitral stenosis and may be used as evidence in weighing the advisability of operation. In the present study, delayed appearance of the first heart sound was often noted in patients with hypertensive vascular disease as well. The mechanism for these changes as well as their significance in the phonocardiographic evaluation of patients with combined valvular disease and hypertension is discussed.

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