| Advantage of right ventricular outflow tract pacing on cardiac function and coronary circulation in comparison with right ventricular apex pacing. | |
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MedLine Citation:
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PMID: 20800440 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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BACKGROUND: The purpose of this study was to investigate the acute effect of right ventricular outflow tract (RVOT) pacing and right ventricular apex (RVA) pacing on synchronous ventricular activation and coronary flow dynamics. METHODS: We enrolled 20 consecutive patients who underwent electrophysiologic study. Echocardiographic study including two-dimensional tissue tracking imaging and Doppler guide wire examination was performed during RVOT pacing and RVA pacing. RESULTS: The improvement of left ventricular radial dyssynchrony (99 ± 12 ms vs. 142 ± 16 ms, P < .001), time-averaged peak velocities of coronary blood flow (54 ± 18 cm/s vs. 47 ± 17 cm/s, P = .007), and coronary microvascular resistance index (2.0 ± 0.8 vs. 2.4 ± 1.1, P = .028) was observed with RVOT pacing compared with RVA pacing. CONCLUSION: RVOT pacing might provide favorable effects on the left ventricular function and coronary flow dynamics over RVA pacing. |
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Authors:
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Takahshi Yamano; Takashi Kubo; Shigeho Takarada; Kohei Ishibashi; Kenichi Komukai; Takashi Tanimoto; Yasushi Ino; Hironori Kitabata; Kumiko Hirata; Atushi Tanaka; Toshio Imanishi; Takashi Akasaka |
Publication Detail:
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Type: Journal Article Date: 2010-08-30 |
Journal Detail:
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Title: Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography Volume: 23 ISSN: 1097-6795 ISO Abbreviation: J Am Soc Echocardiogr Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-10-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8801388 Medline TA: J Am Soc Echocardiogr Country: United States |
Other Details:
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Languages: eng Pagination: 1177-82 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 American Society of Echocardiography. Published by Mosby, Inc. All rights reserved. |
Affiliation:
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Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan. akasat@wakayama-med.ac.jp |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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