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?:abstract
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Takotsubo cardiomyopathy or takotsubo syndrome (TTS) has become a well-known disease not only in Japan but also in the rest of the world. Early reports suggested that TTS is a self-limiting disease with better prognosis than acute coronary syndrome. However, recent data showed that TTS is not a benign disease as compared with acute coronary syndrome. In addition to the apical ballooning, several other types of wall motion abnormalities have been classified as variants of TTS. In particular, right ventricular involvement, or biventricular TTS, is not uncommon and is associated with poor in-hospital as well as long-term outcomes. With respect to the pathophysiology, modulation (desensitization) of the beta-adrenergic receptor is suspected as a possible mechanism for transiently depressed myocardial contraction. Although specific treatments to improve prognosis of TTS are still uncertain, observational data suggest favorable impact of angiotensin-converting enzyme inhibitors or angiotensin receptor blockers. Finally, in the era of COVID-19, we should pay attention to a variety of cardiovascular conditions related to COVID-19. TTS is one of these conditions that can be triggered by both emotional and physical impact of the COVID-19 pandemic.
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