RT Journal Article T1 Short- and Long-Term Prognostic Relevance of Cardiogenic Shock in Takotsubo Syndrome: Results From the RETAKO Registry. A1 Almendro-Delia, Manuel A1 Núñez-Gil, Iván J A1 Lobo, Manuel A1 Andrés, Mireia A1 Vedia, Oscar A1 Sionis, Alessandro A1 Martin-García, Ana A1 Cruz Aguilera, María A1 Pereyra, Eduardo A1 Martín de Miguel, Irene A1 Linares Vicente, José A A1 Corbí-Pascual, Miguel A1 Bosch, Xavier A1 Fabregat Andrés, Oscar A1 Sánchez Grande Flecha, Alejandro A1 Pérez-Castellanos, Alberto A1 Pais, Javier López A1 De Mora Martín, Manuel A1 Escudier Villa, Juan María A1 Martín Asenjo, Roberto A1 Guillen Marzo, Marta A1 Rueda Sobella, Ferrán A1 Aceña, Álvaro A1 García Acuña, José María A1 García-Rubira, Juan C A1 RETAKO Investigators, K1 Takotsubo syndrome K1 beta blockers K1 cardiogenic shock K1 stress AB This study sought to describe the incidence, determinants, and prognostic impact of cardiogenic shock (CS) in takotsubo syndrome (TTS). TTS can be associated with severe hemodynamic instability. The prognostic implication of CS has not been well characterized in large studies of TTS. We analyzed patients with a definitive TTS diagnosis (modified Mayo criteria) who were recruited for the National RETAKO (Registry on Takotsubo Syndrome) trial from 2003 to 2016. Cox and competing risk regression models were used to identify factors associated with mortality and recurrences. A total of 711 patients were included, 81 (11.4%) of whom developed CS. Male sex, QTc interval prolongation, lower left ventricular ejection fraction at admission, physical triggers, and presence of "a significant" left intraventricular pressure gradient, were associated with CS (C index = 0.85). In-hospital complication rates, including mortality, were significantly higher in patients with CS. Over a median follow-up of 284 days (interquartile range: 94 to 929 days), CS was the strongest independent predictor of long-term, all-cause mortality (hazard ratio [HR]: 5.38; 95% confidence interval [CI]: 2.60 to 8.38); cardiovascular (CV) death (sub-HR: 4.29; 95% CI: 2.40 to 21.2), and non-CV death (sub-HR: 3.34; 95% CI: 1.70 to 6.53), whereas no significant difference in the recurrence rate was observed between groups (sub-HR: 0.76; 95% CI: 0.10 to 5.95). Among patients with CS, those who received beta-blockers at hospital discharge experienced lower 1-year mortality compared with those who did not receive a beta-blocker (HR: 0.52; 95% CI: 0.44 to 0.79; pinteraction = 0.043). CS is not uncommon and is associated with worse short- and long-term prognosis in TTS. CS complicating TTS may constitute a marker of underlying disease severity and could identify a masked heart failure phenotype with increased vulnerability to catecholamine-mediated myocardial stunning. YR 2018 FD 2018-10-10 LK http://hdl.handle.net/10668/13076 UL http://hdl.handle.net/10668/13076 LA en DS RISalud RD Apr 7, 2025