Second Heart Sound
نویسندگان
چکیده
منابع مشابه
Sound Pressure Correlates of the Second Heart Sound
The sound pressure correlates of the second heart sound were studied in 22 patients during diagnostic cardiac catheterization. Simultaneous right ventricular and pulmonary artery pressures were recorded with equisensitive catheter-tip micromanometers together with the external phonocardiogram and ECG. In 12 patients having normal pulmonary vascular resistance (group 1), pulmonic closure sound w...
متن کاملSecond heart sound in normal subjects.
Splitting of the second heart sound in the pulmonary area into two components was first recognized by Potain (1866). In expiration, the two components fuse, while in inspiration delay of pulmonary valve closure (P2) occurs almost invariably in healthy subjects, enabling identification of aortic valve closure (A2) and P2, and hence comparison of the duration of right and left ventricular systole...
متن کاملPhysiologic splitting of the second heart sound.
AN INCREASE in the magnitude of splitting of the 2 components of the second heart sound, as heard in the pulmonary area during inspiration, has been recognized for nearly a century.1 Recent reports2' 3 suggest that this phenomenon is due to a relative delay of pulmonary valve closure when the increased venous return during inspiration causes prolongation of right ventricular meehanical systole....
متن کاملSound pressure correlates of the second heart sound. An intracardiac sound study.
The sound pressure correlates of the second heart sound were studied in 22 patients during diagnostic cardiac catheterization. Simultaneous right ventricular and pulmonary artery pressures were recorded with equisensitive catheter-tip micromanometers together with the external phonocardiogram and ECG. In 12 patients having normal pulmonary vascular resistance (group 1), pulmonic closure sound w...
متن کاملThe second heart sound in atrial septal defect.
17. Shone JD, Sellers RD, Anderson RC, Adams P Jr, Lillihei CW, Edwards JE: The developmental complex of "parachute mitral valve," supravalvar ring of the left atrium, subaortic stenosis and coarctation of the aorta. Am J Cardiol 11: 714, 1963 18. Ellison RC, Restieaux NJ: Vectorcardiography in Congenital Heart Disease. Philadelphia, W.B. Saunders Co, 1972, p 196 19. Heath D, Edwards JE: The pa...
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ژورنال
عنوان ژورنال: Indian Journal of Cardiovascular Disease in Women WINCARS
سال: 2020
ISSN: 2455-7854
DOI: 10.1055/s-0040-1708581