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Background: There is a paucity of data regarding epidemiology, temporal trends, and outcomes of patients with cardiogenic shock (CS) and end-stage renal disease (chronic kidney disease stage V on hemodialysis)., Methods: This is a retrospective cohort study using the United States Renal Data System database from January 1, 2006 to December 31, 2019. We analyzed trends of CS, percutaneous mechanical support (intraaortic balloon pump, percutaneous ventricular assist device [Impella and Tandemheart], and extracorporeal membrane oxygenation) utilization, index mortality, 30-day mortality, and 1-year all-cause mortality in end-stage renal disease patients., Results: A total of 43 825 end-stage renal disease patients were hospitalized with CS (median age, 67.8 years [IQR, 59.4-75.8] and 59.1% men). From 2006 to 2019, the incidence of CS increased from 275 to 578 per 100 000 patients ( P trend <0.001). The index mortality rate declined from 54.1% in 2006 to 40.8% in 2019 ( P trend =0.44), and the 1-year all-cause mortality decreased from 63% in 2006 to 61.8% in 2018 ( P trend =0.73), but neither trend was statistically significant. There was a significantly decreased utilization of intra-aortic balloon pumps from 17 832 to 7992 ( P trend <0.001), increased utilization of percutaneous ventricular assist device from 137 to 5201 ( P trend <0.001) and increase in extracorporeal membrane oxygenation use from 69 to 904 per 100 000 patients ( P trend <0.001). After adjusting for covariates, there was no significant difference in index mortality between CS patients requiring percutaneous mechanical support versus those not requiring percutaneous mechanical support (odds ratio, 0.97 [CI, 0.91-1.02]; P =0.22). On multivariable regression analysis, older age, peripheral vascular disease, diabetes, and time on dialysis were independent predictors of higher index mortality., Conclusions: The incidence of CS in end-stage renal disease patients has doubled without significant change in the trend of index mortality despite the use of percutaneous mechanical support., Competing Interests: Disclosures None.

Background: Cardiac transplantation has been successfully performed in patients with a history of presumably cured Hodgkin's disease (HD) and non-Hodgkin's lymphoma (NHL). Though the risk of recurrence is a major concern, the long-term influence of prior cancer and cancer therapy on posttransplant outcome has not been previously investigated., Methods: Questionnaires were sent to 130 cardiac transplant centers in the United States registered with the United Network for Organ Sharing. Data collected included patient demographics; type, stage, and timing of HD/NHL; treatment for HD/NHL; posttransplant immunosuppressive regimen, rejection history, and outcomes; and Epstein-Barr virus status., Results: Thirty-four cardiac transplant recipients with a previous history of HD (n=16) or NHL (n=18) were identified. HD patients averaged 41+/-15 years of age, with a mean disease-free interval of 15+/-9 years at the time of transplantation. NHL patients averaged 42+/-17 years of age with a mean disease-free interval of 10+/-9 years at the time of transplantation. The mean follow-up for the entire group was 50 months (range, 2 days to 136 months), and mean follow-up for the survivors was 67 months (range, 23-136 months). The 1-, 3-, 5-, 7-, and 10-year actuarial survival estimates for the entire group are 77%, 64%, 64%, 64%, and 50%, respectively. Actuarial survival was lower in HD patients (P=0.04) and in patients who had previously undergone splenectomy (P=0.008). Cox regression analysis identified only prior splenectomy (P=0.02) as an independent risk factor for mortality after cardiac transplantation with an adjusted relative risk of 6.2 (1.7-21.9, 95% confidence intervals)., Conclusions: Although the numbers are small, these data strongly suggest that there is an increased mortality risk for cardiac transplant recipients with prior HD who have undergone splenectomy.