Prominent J-wave and T-wave alternans associated with mechanical alternans in a patient with takotsubo cardiomyopathy.
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.
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan.
Rintaro
R
Hojo
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan.
Seiji
S
Fukamizu
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan.
Takeshi
T
Kitamura
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan.
Kota
K
Komiyama
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan.
Yasuhiro
Y
Tanabe
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, 2-34-10, Ebisu, Shibuya-ku, Tokyo 150-0013, Japan.
Tamotsu
T
Tejima
Department of Cardiology, Yokohama Minami Kyosai Hospital, Japan.
Mitsuhiro
M
Nishizaki
Tokyo Metropolitan Health and Medical Treatment Corporation Ohkubo Hospital, Tokyo, Japan.
Harumizu
H
Sakurada
Toride Kitasohma Medical Center Hospital, Ibaraki, Japan.
Masayasu
M
Hiraoka
J-wave alternans; Mechanical alternans; QT-interval prolongation; T-wave alternans; Takotsubo cardiomyopathy