Systemic Inflammatory Response Syndrome Is a Major Determinant of Cardiovascular Outcome in Takotsubo Syndrome

摘要

Background: Recent insights have emphasized the importance of inflammatory response in takotsubo syndrome (TTS). We sought to evaluate the predictors of systemic inflammatory response syndrome (SIRS) and its impact on cardiovascular mortality after TTS. Methods?and?Results: The 215 TTS patients were retrospectively included between September 2008 and January 2018. SIRS was diagnosed in 96 patients (44.7%). They had lower left ventricular ejection fraction (LVEF) on admission (34.5% vs. 41.9%; P0.001) and higher peak brain natriuretic peptide and troponin. At a median follow-up of 518?days, SIRS was associated with increased in-hospital mortality (14.6% vs. 5.0%; P=0.019), overall mortality (29.4% vs. 10.8%; P=0.002), and cardiovascular mortality (10.6% vs. 2.1%; P=0.026). A history of cancer (OR, 3.36; 95% CI: 1.54–7.31; P=0.002) and LVEF 40% at admission (OR, 2.31; 95% CI: 1.16–4.58; P=0.017) were identified as independent predictors of SIRS. On multivariate Cox regression analysis, SIRS (HR, 12.8; 95% CI: 1.58–104; P=0.017), age (HR, 1.09; 95% CI: 1.02–1.16; P=0.01), and LVEF 40% at discharge (HR, 9.88; 95% CI: 2.54–38.4; P=0.001) were independent predictors of cardiovascular death. Conclusions: SIRS was found in a large proportion of TTS patients and was associated with enhanced myocardial damage and adverse outcome in the acute phase. At long-term follow-up, SIRS remained an independent factor of cardiovascular death.