Stroke Volume Calculated from the Mitral Valve Echogram
نویسنده
چکیده
Grantham RN, Scully HE, Beierholm EA, Frederiksen JW, Weisfeldt ML, Dagget WM: The echocardiogram of the anterior leaflet of the mitral valve. Correlation with hemodynamic and cineroentgenographic studies in dogs. Circulation 51: 88, 1975 16. Rubenstein JJ, Pohost GM, Dinsmore RE, Harthorne JW: The echocardiographic determination of mitral valve opening and closure. Correlation with hemodynamic studies in man. Circulation 51: 98, 1975 17. Mills PG, Chamusco RF, Moos S, Craige E: Echocardiographic studies of the contribution of the atrioventricular valves to the first heart sound. Circulation 54: 944, 1976 18. Zaky A, Nasser NK, Feigenbaum H: A study of mitral valve action recorded by reflected ultrasound and its application in the diagnosis of mitral stenosis. Circulation 37: 789, 1968 19. Laniado S, Yellin EL, Miller H, Frater RWM: Temporal relation of the first heart sound to closure of the mitral valve. Circulation 47: 1006, 1973
منابع مشابه
Stroke volume calculated from the mitral valve echogram in patients with and without ventricular dyssynergy.
A formula was derived for calculating mitral valve stroke volume (MVSV) using the rate of mitral valve (MV) opening (DE slope on the MV echogram), the vertical disease between the mitral leaflet echoes early in diastole (EE), the electrocardiographic PR interval and heart rate. The formula was tested prospectively on 80 consecutive patients from whom 95 simultaneous MV echograms and either ther...
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Transmitral blood flow was measured in man by numerical differentiation of left ventricular volume as a function of time in 11 patients undergoing cardiac catheterization. Using this technique, transmitral blood flow may be studied in a variety of pathologic states without the need for surgically introduced flowmeters. Just before left ventriculography, echocardiography of the mitral valve was ...
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Echocardiographically recorded mitral valve motion was compared with phasic transmitral flow in 17 open chest dogs. The normal mitral valve opening started with the onset of mitral flow and reached its full excursion while flow was still accelerating. Complete valve opening occurred .044 sec (plus or minus .002 sem) before peak flow, during which time an average of 17.6 percent of total mitral ...
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OBJECTIVES The aim of this study was to assess exercise-induced changes in stroke volume and their main determinants in mitral stenosis. BACKGROUND The mechanisms of the stroke volume response to exercise in mitral stenosis are not clearly established. METHODS Twenty-seven patients with mitral stenosis, aged 47 +/- 13 years, and 10 healthy control subjects, aged 46 +/- 11 years, were examin...
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Introduction: Observing microembolic signals in brain vessels by transcranial Doppler technology is a very common finding in patients with mechanical heart valve. These signals are almost always clinically asymptomatic. The aim of this study was assessment of transcranial Doppler in detecting probability of stroke in patients with mechanical heart valve. Methods: This descriptive study was ca...
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