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Takotsubo syndrome (TTS) has been recognized as a benign condition mainly due to its reversibility. However, recent researches have demonstrated that serious cardiac complications could occur during hospitalization. Thus, the aim of this study is to detect factors associated with in-hospital cardiac complications in patients with TTS. A total of 154 consecutive patients with TTS were enrolled retrospectively. In-hospital cardiac complications were observed in 61 patients (40%), including 44 patients with pulmonary edema (29%) and 25 patients with cardiogenic shock (16%). Multivariate logistic regression analysis identified lower systolic blood pressure on admission (OR 0.97, 95% CI 0.96-0.99, p = 0.001), history of diabetes mellitus (OR 2.92, 95% CI 1.01-8.41, p = 0.04), and β-blocker use before admission (OR 16.9, 95% CI 1.57-181.7, p = 0.006) as independent predictors of in-hospital cardiac complications, while chest pain at onset was identified as a negative predictor of cardiac complications during hospitalization (OR 0.20, 95% CI 0.07-0.55, p = 0.001). Patients with cardiac complications more often needed hemodynamic support and longer hospital stay than those without (21.2 ± 19.4 vs. 11.8 ± 16.8 days, p = 0.002). TTS should be no longer recognized as a benign disease, but requiring careful management. We should obtain vital signs and patient's medical history carefully as soon as possible after admission to predict in-hospital cardiac complications.

Cardiac alterations are frequently observed after acute neurological disorders. Takotsubo syndrome (TTS) represents an acute heart failure syndrome and is increasingly recognized as part of the spectrum of cardiac complications observed after neurological disorders. A systematic investigation of TTS patients with neurological disorders has not been conducted yet. The aim of the study was to expand insights regarding neurological disease entities triggering TTS and to investigate the clinical profile and outcomes of TTS patients after primary neurological disorders. The International Takotsubo Registry is an observational multicenter collaborative effort of 45 centers in 14 countries (ClinicalTrials.gov, identifier NCT01947621). All patients in the registry fulfilled International Takotsubo Diagnostic Criteria. For the present study, patients were included if complete information on acute neurological disorders were available. 2402 patients in whom complete information on acute neurological status were available were analyzed. In 161 patients (6.7%) an acute neurological disorder was identified as the preceding triggering factor. The most common neurological disorders were seizures, intracranial hemorrhage, and ischemic stroke. Time from neurological symptoms to TTS diagnosis was ≤ 2 days in 87.3% of cases. TTS patients with neurological disorders were younger, had a lower female predominance, fewer cardiac symptoms, lower left ventricular ejection fraction, and higher levels of cardiac biomarkers. TTS patients with neurological disorders had a 3.2-fold increased odds of in-hospital mortality compared to TTS patients without neurological disorders. In this large-scale study, 1 out of 15 TTS patients had an acute neurological condition as the underlying triggering factor. Our data emphasize that a wide spectrum of neurological diseases ranging from benign to life-threatening encompass TTS. The high rates of adverse events highlight the need for clinical awareness.