タカダ　タクマ   Takada Takuma   髙田　卓磨    所属   研究施設 研究施設    職種   非常勤講師
論文種別	症例報告
言語種別	英語
査読の有無	査読あり
表題	Recurrent takotsubo syndrome with worsening of left ventricular outflow obstruction during haemodialysis: a case report.
掲載誌名	正式名：European heart journal. Case reports 略　 称：Eur Heart J Case Rep ISSNコード：25142119
掲載区分	国外
出版社	Oxford University Press
巻・号・頁	4(2),pp.1-6
著者・共著者	TAKADA Takuma†, JUJO Kentaro*, ISHIDA Issei, HAGIWARA Nobuhisa
担当区分	筆頭著者
発行年月	2020/02/21
概要	Background:The recurrence rate of takotsubo syndrome (TS) has been reported as 1.8% per patient-year while left ventricular outflow tract (LVOT) obstruction is comorbid in 10-25% of all instances of TS. The clinical course of recurrent TS with associated LVOT while on haemodialysis has rarely been reported. Case summary:This case report involves a 60-year-old female patient receiving regular haemodialysis who was admitted for chest pain during ballroom dancing. Four years prior, she had suffered TS, and fully recovered after the hospitalization. An emergent coronary angiogram done during the second hospitalization showed no significant stenosis, and left ventriculography demonstrated mid-apical akinesia and basal hyperkinesia. Based on these findings, we diagnosed the recurrence of TS. Later in the admission, chest pain reappeared with the start of haemodialysis. A transthoracic echocardiogram demonstrated mean pressure gradient (PG) of LVOT was 58 mmHg, with systolic anterior motion of the mitral valve and basal-wall hyperkinesia. The main aetiology for her symptoms was considered as an exacerbation of LVOT obstruction due to removing intravascular volume by haemodialysis. After starting landiolol at 3 μg/kg/min, PG of LVOT and symptoms gradually improved with uptitration of landiolol. Finally, her chest pain resolved when mean PG of LVOT was down to 38 mmHg using 10 μg/kg/min of landiolol. Discussion:To our knowledge, this is the first report of a recurrent TS case comorbid with LVOT obstruction while on regular haemodialysis. Landiolol, the ultrashort-acting beta-blocker, may be a promising therapeutic option for rapid recovery of increased PG due to LVOT obstruction.
DOI	10.1093/ehjcr/ytaa024
PMID	32352061