Prominent J-wave and T-wave alternans associated with mechanical alternans in a patient with takotsubo cardiomyopathy

Rintaro Hojo; Seiji Fukamizu; Takeshi Kitamura; Kota Komiyama; Yasuhiro Tanabe; Tamotsu Tejima; Mitsuhiro Nishizaki; Harumizu Sakurada; Masayasu Hiraoka

doi:10.1016/j.joa.2014.03.008

Prominent J-wave and T-wave alternans associated with mechanical alternans in a patient with takotsubo cardiomyopathy

J Arrhythm. 2015 Feb;31(1):43-6. doi: 10.1016/j.joa.2014.03.008. Epub 2014 May 9.

Authors

Rintaro Hojo¹, Seiji Fukamizu¹, Takeshi Kitamura¹, Kota Komiyama¹, Yasuhiro Tanabe¹, Tamotsu Tejima¹, Mitsuhiro Nishizaki², Harumizu Sakurada³, Masayasu Hiraoka⁴

Affiliations

¹ Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan.
² Department of Cardiology, Yokohama Minami Kyosai Hospital, Japan.
³ Tokyo Metropolitan Health and Medical Treatment Corporation Ohkubo Hospital, Tokyo, Japan.
⁴ Toride Kitasohma Medical Center Hospital, Ibaraki, Japan.

Abstract

A 74-year-old woman with takotsubo cardiomyopathy developed polymorphic ventricular tachycardia during the acute phase. She exhibited prominent J-wave and T-wave alternans preceding ventricular tachycardia. These abnormalities disappeared after recovery from myocardial stunning.

Keywords: J-wave alternans; Mechanical alternans; QT-interval prolongation; T-wave alternans; Takotsubo cardiomyopathy.