ヒグチ　サトシ   HIGUCHI Satoshi   樋口　諭    所属   医学部 医学科（東京女子医科大学病院）    職種   寄附部門講師
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Relation of Left Atrial Flow, Volume, and Strain to Paroxysmal Atrial Fibrillation in Patients With Hypertrophic Cardiomyopathy.
掲載誌名	正式名：The American journal of cardiology 略　 称：Am J Cardiol ISSNコード：18791913/00029149
掲載区分	国外
巻・号・頁	166,pp.72-80
著者・共著者	Nakao Risako, Nagao Michinobu, Higuchi Satoshi, Minami Yuichiro, Shoda Morio, Ando Kiyoe,, Yamamoto Atsushi,, Sakai Akiko,, Watanabe Eri,, Sakai Shuji,, Hagiwara Nobuhisa
発行年月	2022/03
概要	This study aims to characterize flow, volume, and strain of the left atrium in hypertrophic cardiomyopathy (HC) with atrial fibrillation (AF) using cine cardiovascular magnetic resonance (CMR) imaging. Cine CMR data for 144 patients with HC, including 29 patients with episodes of paroxysmal AF and 13 patients with persistent AF, were retrospectively analyzed. The vortex flow of the left atrial (LA, %) was measured using a vortex flow map and was used as an estimate of flow. The LA end-systolic volume index (ml/m2), LA ejection fraction (%) and global peak longitudinal LA strain (%) derived from a feature-tracking method were used as estimates of volume and strain. Vortex flow of the LA in patients with paroxysmal AF was significantly smaller than in patients without AF (vertical long-axis view; 26.7 ± 10.8% vs 33.2 ± 12.2%, p <0.005). The patients with paroxysmal AF had greater LA end-systolic volume index and global peak longitudinal LA strain and lower LA ejection fraction compared with those without AF. In conclusion, patients with HC with paroxysmal AF are characterized by small vortex flow, large volume, and decreased strain of LA on cine CMR.
DOI	10.1016/j.amjcard.2021.11.016
PMID	34930615