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Accessory papillary muscles and papillary muscle hypertrophy are associated with sudden cardiac arrest of unknown cause

Authors
 Jae-Sun Uhm  ;  Jong-Chan Youn  ;  Moon-Hyoung Lee  ;  Hui-Nam Pak  ;  Boyoung Joung  ;  Geu-Ru Hong  ;  Chi Young Shim  ;  Jin-Kyu Park  ;  Junbeom Park  ;  Hye-Jeong Lee 
Citation
 INTERNATIONAL JOURNAL OF CARDIOLOGY, Vol.197 : 285-291, 2015 
Journal Title
 INTERNATIONAL JOURNAL OF CARDIOLOGY 
ISSN
 0167-5273 
Issue Date
2015
MeSH
Adult ; Aged ; Cardiomegaly/complications* ; Cardiomegaly/diagnosis* ; Death, Sudden, Cardiac/etiology* ; Female ; Humans ; Male ; Middle Aged ; Papillary Muscles/pathology* ; Retrospective Studies
Keywords
Hypertrophy ; Papillary muscle ; Sudden cardiac arrest ; Ventricular fibrillation
Abstract
BACKGROUND: The present study was performed for elucidating the associations between the morphology of the papillary muscles (PMs) and sudden cardiac arrest (SCA). METHODS: We retrospectively reviewed history, laboratory data, electrocardiography, echocardiography, coronary angiography, and cardiac CT/MRI for 190 patients with SCA. The prevalence of accessory PMs and PM hypertrophy in patients with SCA of unknown cause was compared with that in patients with SCA of known causes and 98 age- and sex-matched patients without SCA. An accessory PM was defined as a PM with origins separated from the anterolateral and posteromedial PMs, or a PM that branched into two or three bellies at the base of the anterolateral or posteromedial PM. PM hypertrophy was defined as at least one of the two PMs having a diameter of ≥1.1cm. RESULTS: In 49 patients (age 49.9±15.9years; 38 men) the cause of SCA was unknown, whereas 141 (age 54.2±16.6years; 121 men) had a known cause. The prevalence of accessory PMs was significantly higher in the unknown-cause group than in the known-cause group (24.5% and 7.8%, respectively; p=0.002) or the no-SCA group (7.1%, p=0.003). The same was true for PM hypertrophy (unknown-cause 12.2%, known-cause 2.1%, p=0.010; no SCA group 1.0%, p=0.006). By logistic regression, accessory PM and PM hypertrophy were independently associated with sudden cardiac arrest of unknown cause. CONCLUSIONS: An accessory PM and PM hypertrophy are associated with SCA of unknown cause.
Full Text
http://www.sciencedirect.com/science/article/pii/S0167527315300346
DOI
10.1016/j.ijcard.2015.06.097
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Park, Jin Kyu(박진규)
Pak, Hui Nam(박희남) ORCID logo https://orcid.org/0000-0002-3256-3620
Shim, Chi Young(심지영) ORCID logo https://orcid.org/0000-0002-6136-0136
Uhm, Jae Sun(엄재선) ORCID logo https://orcid.org/0000-0002-1611-8172
Youn, Jong Chan(윤종찬)
Lee, Moon Hyoung(이문형) ORCID logo https://orcid.org/0000-0002-7268-0741
Lee, Hye Jeong(이혜정) ORCID logo https://orcid.org/0000-0003-4349-9174
Joung, Bo Young(정보영) ORCID logo https://orcid.org/0000-0001-9036-7225
Hong, Geu Ru(홍그루) ORCID logo https://orcid.org/0000-0003-4981-3304
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/140449
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