In patients with mitral stenosis, the mean diastolic pressure gradient between the left atrium and ventricle varied from 4 to 20 mm Hg before commissurotomy and fell following the surgical procedure.
Observational (n=9)
No
Simultaneous recording of pressure pulses from the left atrium, left ventricle, and aorta provides a simplified method for analyzing hemodynamic events in normal controls and patients with mitral stenosis.
Abstract: Pressure pulses from the human heart have been recorded at operation by simultaneous needle puncture of the left atrium, left ventricle and aorta. Superimposed tracings on equal ordinate scales were obtained, thus simplifying the analysis of hemodynamic events. Preliminary observations are presented from cardiologically normal controls and patients with mitral stenosis before and after commissurotomy.
Gordon et al. (Wed,) conducted a observational in Mitral stenosis (n=9). Mitral valvulotomy vs. Pre-operative baseline was evaluated on Mean diastolic left atrioventricular pressure gradient. In patients with mitral stenosis, the mean diastolic pressure gradient between the left atrium and ventricle varied from 4 to 20 mm Hg before commissurotomy and fell following the surgical procedure.