title: Torsade de pointes associated with bradycardia and takotsubo cardiomyopathy.
abstract: Two cases of torsade de pointes associated with bradycardia and takotsubo cardiomyopathy are reported. In both cases, atrioventricular block preceded the occurrence of takotsubo cardiomyopathy. Bradycardia-induced QT interval prolongation seemed to be amplified by the occurrence of takotsubo cardiomyopathy, resulting in torsade de pointes. Temporary ventricular pacing at a high rate decreased the QT interval and prevented the recurrence of torsade de pointes. Because atrioventricular block recurred or persisted even after the resolution of takotsubo cardiomyopathy, the patients received permanent pacemakers.
authors.affiliation: Department of Cartdiology, Hiroshima City Hospital, Hiroshima, Japan. skurisu@nifty.com
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kurisu
authors.forename: Ichiro
authors.initials: I
authors.lastname: Inoue
authors.forename: Takuji
authors.initials: T
authors.lastname: Kawagoe
authors.forename: Masaharu
authors.initials: M
authors.lastname: Ishihara
authors.forename: Yuji
authors.initials: Y
authors.lastname: Shimatani
authors.forename: Yasuhara
authors.initials: Y
authors.lastname: Nakama
authors.forename: Keisuke
authors.initials: K
authors.lastname: Ohkawa
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Maruhashi
authors.forename: Eisuke
authors.initials: E
authors.lastname: Kagawa
authors.forename: Kazuoki
authors.initials: K
authors.lastname: Dai
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Aokage
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001919:Bradycardia / Q000175:diagnosis* / Q000628:therapy; D002037:Bundle-Branch Block / Q000175:diagnosis / Q000628:therapy; D002304:Cardiac Pacing, Artificial; D017023:Coronary Angiography; D003937:Diagnosis, Differential; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000175:diagnosis / Q000628:therapy; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008133:Long QT Syndrome / Q000175:diagnosis; D008297:Male; D054549:Takotsubo Cardiomyopathy / Q000175:diagnosis* / Q000628:therapy; D016171:Torsades de Pointes / Q000175:diagnosis* / Q000628:therapy