Impact of ST-segment elevation on the outcome of Takotsubo syndrome

Thorsten Gietzen,1,2,* Ibrahim El-Battrawy,1,2,* Siegfried Lang,1,2 Xiao-Bo Zhou,1,2 Michael Behnes,1 Uzair Ansari,1 Martin Borggrefe,1,2 Ibrahim Akin1,2 1First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, Mannheim, Germany; 2German Center for Cardiovascular Research (DZHK), Partner Site, Heidelberg-Mannheim, Mannheim, Germany *These authors contributed equally to this work Background: Recent studies have highlighted that Takotsubo syndrome (TTS), mimicking acute coronary syndrome (ACS), is associated with poor clinical outcome. TTS is associated with different repolarization disorders including ST-segment elevation. ST elevation myocardial infarction (STEMI) in ACS is associated with declined prognosis. However, the clinical and prognostic impact of ST-segment elevation on TTS remains lacking. Aim: The aim of this study was to determine the short- and long-term prognostic impact of ST-segment elevation on TTS patients as compared with STEMI patients. Patients and methods: Our institutional database constituted a consecutive cohort of 138 TTS patients and 138 ACS patients matched for age and sex. TTS patients (n=41) with ST-segment elevation were compared with ACS patients with ST-segment elevation (n=64). Results: Chest pain was significantly more documented in STEMI patients as compared with TTS patients (48.8% vs 78.1%; P