Abstract
We report visually confirmed post-systolic shortening (PSS) during the recovery period and the relationship between PSS and electrocardiographic abnormalities in 4 cases of Takotsubo cardiomyopathy (TTC). In these 4 cases, the appearance of visually confirmed PSS during the recovery period coincided with observation of the deepest T wave and the longest QT interval. The transmural repolarization gradient and heterogeneous duration of myocardial contractions may cause PSS in the TTC recovery period.
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Conflict of interest
Kazuaki Tanabe received lecture fees from Toshiba Medical Systems Corporation. Hirotomo Sato, Hiroyuki Yoshitomi, Nobuhide Watanabe, Tomoko Adachi, Saki Ito, and Kazuto Yamaguchi declare that they have no conflict of interest.
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All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000(5).
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Informed consent was obtained from all patients for being included in the study.
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Sato, H., Yoshitomi, H., Watanabe, N. et al. Visually confirmed post-systolic shortening during the recovery period in four cases of Takotsubo cardiomyopathy. J Echocardiogr 12, 159–161 (2014). https://doi.org/10.1007/s12574-014-0231-3
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DOI: https://doi.org/10.1007/s12574-014-0231-3