Abstract 12963: Increased Readmission Rates in Cardiogenic Shock Patients Who Received Temporary Mechanical Circulatory Support: A Call to Targeted Action

Introduction: Patients hospitalized for cardiogenic shock who survive to discharge are at high risk of readmission. Patients requiring temporary mechanical circulatory support (tMCS) during their index admission reflect a high risk population. Therefore, we aim to quantify and compare the 90-day readmission trends for patients who did and did not receive tMCS at their index hospitalization for cardiogenic shock. Methods: From 2016 to 2019, patients with an admission diagnosis for cardiogenic shock were identified in the Florida State Inpatient Database. Patient characteristics, management at index admission, and causes of readmission were analyzed. Results: In total, 31,986 patients had an index admission for cardiogenic shock, of which 5,229 (16.3%) were treated with tMCS. In a 90-day cohort analysis of 18,317 patients, 6,119 (33.4%) patients were readmitted. Among patients that received tMCS during their index admission, 1,583 (51.2%) were readmitted compared with 4,536 (29.8%) that did not receive tMCS. Repeat readmissions for cardiogenic shock were present in 490 (15.9%) of patients who received tMCS at index admission compared with 232 (1.5%) of patients who did not have tMCS at index hospitalization. There was no statistically significant difference in the readmission rates across the four years of the study. Conclusions: Despite significant improvements in medical therapy and mechanical support in recent years, the rate of readmission after index admission for cardiogenic shock has not decreased. Trends in 90-day readmission demonstrate that patients who received tMCS at their index hospitalization for cardiogenic shock were not only more likely to be readmitted, but also more likely to be readmitted specifically with a repeat diagnosis of cardiogenic shock. Patients who require tMCS at their index admission for cardiogenic shock should be targeted as a high risk group to prevent readmission.