Journal ArticleDOI
Effect of tachycardia on atrial transport in mitral stenosis
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The purpose of this study is to quantitate separately the hemody namic significance of active atrial transport compared with passive atrial Transport of the atrium at two different heart rates in patients with mitral stenosis.About:
This article is published in American Heart Journal.The article was published on 1977-09-01. It has received 27 citations till now. The article focuses on the topics: Mitral valve & Atrium (heart).read more
Citations
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Journal ArticleDOI
Dobutamine stress echocardiography for noninvasive assessment and risk stratification of patients with rheumatic mitral stenosis
Gilmar Reis,Mauro S. Motta,Marcia M Barbosa,William A. M. Esteves,Sônia Francisca de Souza,Edimar Alcides Bocchi +5 more
TL;DR: In patients with MS, DSE is a safe and highly feasible stress test that identifies a subgroup of high-risk patients in whom a more aggressive approach may be warranted and may justify a more conservative strategy.
Journal ArticleDOI
Atrial contribution to ventricular filling in mitral stenosis.
Jay S. Meisner,Gad Keren,Octavio Pajaro,Ariel Mani,Joel A. Strom,Robert W.M. Frater,Shlomo Laniado,Edward L. Yellin +7 more
TL;DR: The atrial booster pump contributes less to ventricular filling in mitral stenosis than in the normal heart, and the loss of atrial pump function is less important than the effect increasing heart rate as the cause of decompensation during atrial fibrillation.
Journal ArticleDOI
LV twisting and untwisting in HCM: Ejection begets filling: Diastolic functional aspects of HCM
TL;DR: An emerging new paradigm of diastolic dynamics, emphasizing the relationship of myofiber sheet and ultraconstituent distortion to LV mechanics and end-systolic shape, might clarify intricate patterns of early diastsolic rebound and suction, needed for LV filling in many of the polymorphic phenotypes of HCM.
Journal ArticleDOI
Mitral stenosis: Left atrial dynamics reflect altered passive and active emptying
TL;DR: To assess the passive and the active phases of left atrial (LA) emptying, LA volumes and function were studied in patients with mitral stenosis in sinus rhythm and in normal subjects with two-dimensional echocardiography with simultaneous electrocardiograms.
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Effects of pacing tachycardia and balloon valvuloplasty on pulmonary artery impedance and hydraulic power in mitral stenosis.
TL;DR: It is suggested that although characteristic impedance may be a measure of the long-term effects of pulmonary hypertension on the pulmonary circulation, acute increases and decreases in PA pressure produce effects on right ventricular load that are best described in terms of the low-frequency properties of the PA system.
References
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Journal ArticleDOI
Hydraulic formula for calculation of the area of the stenotic mitral valve, other cardiac valves, and central circulatory shunts. I
Richard Gorlin,S.G. Gorlin +1 more
TL;DR: Standard hydrokinetic orifice formulas applied to stenotic mitral, pulmonic, tricuspid, and aortic valves, patent ductus arteriosus, and atrial and ventricular septal defects present an objective evaluation of surgical procedures designed to widen stenotic orifices or to abolish abnormal shunts.
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Studies on the circulation
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Relationships between left ventricular ejection time, stroke volume, and heart rate in normal individuals and patients with cardiovascular disease.
Arnold M. Weissler,Arnold M. Weissler,Robert G. Peeler,Robert G. Peeler,Walter H. Roehll,Walter H. Roehll +5 more
TL;DR: The present observations on temporal phenomena in cardiac ejection suggests the practical application of these techniques in the evaluation of patients with various cardiovascular disorders.
Journal ArticleDOI
Hemodynamic effects of altering the timing of atrial systole.
TL;DR: The use of heart block dog preparations allowed an investigation at constant ventricular rates of the hemodynamic effects which resulted when the timing of atrial systole was altered relative to the resting heart.
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The hemodynamic role of the atria with and without mitral stenosis
R.A. Carleton,J.S. Graettinger +1 more