BACKGROUND: Cardiogenic shock exhibits a heterogeneous pathogenesis, and its prognosis differs widely among cases. Critically ill patients are managed with mechanical circulatory support, but the prognostic factors in cardiogenic shock patients requiring veno-arterial extracorporeal membrane oxygenation(V-A ECMO)are still unclear. This study was performed to evaluate the clinical characteristics of patients with cardiogenic shock requiring V-A ECMO in our hospital and investigate their prognosis and prognostic factors.
METHODS: We retrospectively investigated patients with cardiogenic shock requiring V-A ECMO at St. Marianna University Hospital between January 1, 2017, and December 31, 2022. Clinical characteristics were compared between the in-hospital death and live discharge groups, and potential predictive factors for in-hospital mortality were evaluated.
RESULTS: Eighty-seven patients were included in this study. Median age was 62 years, 76% were male, median lactate level before V-A ECMO introduction was 8 mmol/L, median high-sensitive(hs)troponin T was 0.238 ng/mL, and 37.9% of patients had cardiopulmonary arrest on arrival at hospital. In-hospital deaths occurred in 60%(n=52)of cases. Multivariate logistic regression analysis showed that hs troponin T level and fulminant myocarditis were independent predictors of in-hospital mortality.
CONCLUSION: Hs troponin T and lactate assays may be useful for predicting in-hospital mortality in patients with cardiogenic shock requiring V-A ECMO. Further multicenter case series are required to improve the accuracy of these indicators.
View full abstract