Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury

Coronary injury is a crucial complication of ablation on the posterior mitral annulus (PMA). Fifty autopsy heart specimens were classified into different types according to the final branch of the left circumflex coronary artery. The no-coronary area on the PMA was examined in each type. The postero...

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Main Authors:	Hajime Imura, MD, Kiyomi Y. Hames, MD, Yasuo Miyagi, MD, Hiroshige Murata, MD, Takashi Nitta, MD, Masami Ochi, MD
Format:	Article
Language:	English
Published:	Wiley 2014-12-01
Series:	Journal of Arrhythmia
Subjects:	Mitral annulus Ablation Coronary injury
Online Access:	http://www.sciencedirect.com/science/article/pii/S1880427613001816

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spelling	doaj-ad0c0438895140a3a713ce2c6473a88a2020-11-24T21:09:49ZengWileyJournal of Arrhythmia1880-42762014-12-0130644444510.1016/j.joa.2013.11.003Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injuryHajime Imura, MD0Kiyomi Y. Hames, MD1Yasuo Miyagi, MD2Hiroshige Murata, MD3Takashi Nitta, MD4Masami Ochi, MD5Cardiovascular Surgery of Nippon Medical School Hospital, 1-1-5, Sendagi Bunkyo-ku, Tokyo, 113-8603, JapanCardiovascular Surgery of Nippon Medical School Hospital, 1-1-5, Sendagi Bunkyo-ku, Tokyo, 113-8603, JapanCardiovascular Surgery of Nippon Medical School Hospital, 1-1-5, Sendagi Bunkyo-ku, Tokyo, 113-8603, JapanCardiology of Nippon Medical School Hospital, 1-1-5, Sendagi Bunkyo-ku, Tokyo, 113-8603, JapanCardiovascular Surgery of Nippon Medical School Hospital, 1-1-5, Sendagi Bunkyo-ku, Tokyo, 113-8603, JapanCardiovascular Surgery of Nippon Medical School Hospital, 1-1-5, Sendagi Bunkyo-ku, Tokyo, 113-8603, JapanCoronary injury is a crucial complication of ablation on the posterior mitral annulus (PMA). Fifty autopsy heart specimens were classified into different types according to the final branch of the left circumflex coronary artery. The no-coronary area on the PMA was examined in each type. The posterolateral type was most common (39/50); the no-coronary area was located between 50.7%±6.5% and 83.5%±8.0% on the PMA. Ablations at 38.6%±5.2% (for catheter intervention) and the middle point (for surgery) appear safe for the obtuse marginal type but not for the posterolateral type. Thus, the no-coronary area should be considered during PMA ablation.http://www.sciencedirect.com/science/article/pii/S1880427613001816Mitral annulusAblationCoronary injury
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Hajime Imura, MD Kiyomi Y. Hames, MD Yasuo Miyagi, MD Hiroshige Murata, MD Takashi Nitta, MD Masami Ochi, MD
spellingShingle	Hajime Imura, MD Kiyomi Y. Hames, MD Yasuo Miyagi, MD Hiroshige Murata, MD Takashi Nitta, MD Masami Ochi, MD Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury Journal of Arrhythmia Mitral annulus Ablation Coronary injury
author_facet	Hajime Imura, MD Kiyomi Y. Hames, MD Yasuo Miyagi, MD Hiroshige Murata, MD Takashi Nitta, MD Masami Ochi, MD
author_sort	Hajime Imura, MD
title	Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury
title_short	Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury
title_full	Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury
title_fullStr	Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury
title_full_unstemmed	Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury
title_sort	ablation on the mitral annulus for the treatment of atrial fibrillation: anatomical consideration to prevent coronary injury
publisher	Wiley
series	Journal of Arrhythmia
issn	1880-4276
publishDate	2014-12-01
description	Coronary injury is a crucial complication of ablation on the posterior mitral annulus (PMA). Fifty autopsy heart specimens were classified into different types according to the final branch of the left circumflex coronary artery. The no-coronary area on the PMA was examined in each type. The posterolateral type was most common (39/50); the no-coronary area was located between 50.7%±6.5% and 83.5%±8.0% on the PMA. Ablations at 38.6%±5.2% (for catheter intervention) and the middle point (for surgery) appear safe for the obtuse marginal type but not for the posterolateral type. Thus, the no-coronary area should be considered during PMA ablation.
topic	Mitral annulus Ablation Coronary injury
url	http://www.sciencedirect.com/science/article/pii/S1880427613001816
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Ablation on the mitral annulus for the treatment of atrial fibrillation: Anatomical consideration to prevent coronary injury

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