Atriogenic Diastolic Reflux in Patients with Atrioventricular Block

Author:

RUTISHAUSER WILHELM1,WIRZ PIERRE1,GANDER MARTIN1,LÜTHY ERNST1

Affiliation:

1. From the Cardiovascular Laboratories of the Medical Policlinic, University of Zurich (Switzerland).

Abstract

In five patients with total A-V block studied by thermodilution, infusion of 10 to 25 ml of cold saline into the right ventricle over a period of several seconds resulted in lowering right atrial temperature usually 0.25 to 0.7 second after P waves not followed in normal temporal sequence by QRS complexes. In three of these patients, in whom left heart catheterization was performed, the same phenomenon could be detected during and after infusion of cold saline into the left ventricle while temperature was measured by a thermistor introduced by transseptal route into the left atrium. Isolated atrial contractions, although capable of partially closing the A-V valves as indicated by the higher ventricular than atrial pressure, lead to atriogenic reflux from the ventricle. Ventricular contraction, however, whether normal or extrasystolic, produced efficient closure of the A-V valves.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Physiology (medical),Cardiology and Cardiovascular Medicine

Reference19 articles.

1. Two modes of closure of the heart valves;HENDERSON Y.;Heart,1912

2. Effect of atrial systole on ventricular pressure and closure of the A-V valves;LITTLE R. C.;Amer J Physiol,1951

3. Movements of the Mitral Valve

4. RUSHMER R. F.: Cardiovascular Dynamics ed.

5. Philadelphia W. B. Saunders Co. 1961

Cited by 44 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

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3