Cardiogenic shock and chronic kidney disease: Dangerous liaisons

Background. - Chronic kidney disease (CKD) is one of the leading causes of death worldwide, closely interrelated with cardiovascular diseases, ultimately leading to the failure of both organs - the so-called "cardiorenal syndrome". Despite this burden, data related to cardiogenic shock outcomes in CKD patients are scarce. Methods. - FRENSHOCK (NCT02703038) was a prospective registry involving 772 patients with cardiogenic shock from 49 centres. One-year outcomes (rehospitalization, death, heart transplantation, ventricular assist device) were analysed according to history of CKD at admission and were adjusted on independent predictive factors. Results. - CKD was present in 164 of 771 patients (21.3%) with cardiogenic shock; these patients were older (72.7 vs. 63.9 years) and had more comorbidities than those without CKD. CKD was associated with a higher rate of all-cause mortality at 1 month (36.6% vs. 23.2%; hazard ratio 1.39, 95% confidence interval 1.01-1.9; P = 0.04) and 1 year (62.8% vs. 40.5%, hazard ratio 1.39, 95% confidence interval 1.09-1.77; P < 0.01). Patients with CKD were less likely to be treated with norepinephrine/epinephrine or undergo invasive ventilation or receive mechanical circulatory support, but were more likely to receive renal replacement therapy (RRT). RRT was associated with a higher risk of all-cause death at 1 month and 1 year regardless of baseline CKD status. Conclusions. - Cardiogenic shock and CKD are frequent "cross-talking" conditions with limited therapeutic options, resulting in higher rates of death at 1 month and 1 year. RRT is a strong predictor of death, regardless of preexisting CKD. Multidisciplinary teams involving cardiac and kidney physicians are required to provide integrated care for patients with failure of both organs. (c) 2024 L'Auteur(s). Publie<acute accent> par Elsevier Masson SAS. Cet article est publie<acute accent> en Open Access sous licence CC BY (http://creativecommons.org/licenses/by/4.0/).