Author:
Hirschfeld S,Liebman J,Borkat G,Bormuth C
Abstract
Echographic aortic valve closure was compared to the dicrotic notch of the aortic pressure and intracardiac A2 to define the exact temporal relationship of the echographic, pressure, and sound parameters of aortic valve closure. Sixteen children, ages 3--20 years, were evaluated by simultaneous aortic valve echograms, micromanometric aortic root pressure tracings, and intracardiac phonocardiograms recorded at paper speeds of 200 mm/sec. Our observations demonstrated that echographic coaptation of the aortic valve leaflets coincides with the trough of the aortic pressure incisura and the onset of A2. The data suggest that A2 is a result of valve closure.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Physiology (medical),Cardiology and Cardiovascular Medicine
Reference38 articles.
1. Valsalva AM: De aura humana tractatus. Bononiae 108 1704
2. Dilatation of the Left Auricular Appendage by the Valsalva Maneuver: An Aid in the Diagnosis of Mitral Valve Disease
3. Rollett A: Physiologie des Blutes und der Blutbewegung. In Handbuch der Physiologie edited by Hermann L vol IV part 1. Leipzig FCW Vogel 1880 p. 275
4. Effect of respiratory acts on the circulation. In Handbook of Physiology, vol III, edited by Hamilton WF, Dow P. Washington;Sharpey-Schafer EP;American Physiological Society,1965
5. Clinical Assessment of Autonomic Function
Cited by
24 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献