Influence of the Valsalva maneuver on cardiac hemodynamics and right to left shunt in patients with patent foramen ovale

The purpose of this study was to investigate the influence of the Valsalva maneuver (VM) on cardiac hemodynamics in patients with patent foramen ovale (PFO). Sixty-five patients who were highly suspected to have PFO were included. The changes in E, A, E/A ratio of mitral valve blood flow, E, A, E/A...

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Bibliographic Details
Published in:Scientific reports 2017-03, Vol.7 (1), p.44280-44280, Article 44280
Main Authors: Zhao, Enfa, Zhang, Yafei, Kang, Chunmiao, Niu, Hua, Zhao, Jing, Sun, Lei, Liu, Baomin
Format: Article
Language:English
Subjects:
639/766/530/2804
692/699/75/1539
Atrium
Blood flow
Cardiac arrhythmia
Circulatory system
Echocardiography
Heart
Heart diseases
Hemodynamics
Humanities and Social Sciences
Mitral valve
multidisciplinary
Pressure
Science
Shoulder
Tricuspid valve
Velocity
Ventricle
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Summary:The purpose of this study was to investigate the influence of the Valsalva maneuver (VM) on cardiac hemodynamics in patients with patent foramen ovale (PFO). Sixty-five patients who were highly suspected to have PFO were included. The changes in E, A, E/A ratio of mitral valve blood flow, E, A, E/A ratio of tricuspid valve blood flow, left ventricular end-diastolic volume, area and right atrial area during the resting state and the strain phase of the Valsalva maneuver were observed by transthoracic echocardiography (TTE). Statistical analyses were performed using SPSS Version18.0. Compared to the resting state, mitral valve diastolic velocity E and A peaks at the strain phase of the Valsalva maneuver significantly decreased ( P  
ISSN:2045-2322
2045-2322
DOI:10.1038/srep44280