Abstract 127: Trends of Racial Disparities and the In-Hospital Outcomes of Patients With Pulmonary Artery Catheterization for Cardiogenic Shock

Abstract

Introduction: The use of pulmonary artery catheterization (PAC) in patients with cardiogenic shock (CS) has been associated with improved outcomes in non-randomized studies. However, the racial difference in PAC utilization and outcomes in CS have not been assessed. Methods: We identified all patients with CS who had PAC from the national inpatient sample of the Health Care Utilization Project database between 2016 - 2020. Patients were classified according to ethnic groups as white, black, Hispanic, and Asians Outcomes of interest included in-hospital mortality and use mechanical circulatory support (MCS) by ethnic group. Result: From 76,815 patients who underwent PAC during CS admission 64.18% of were Whites, 24.78% Blacks, 8.19% Hispanics, and 2.85% Asians. Black patients were younger, had higher prevalence of obesity, CHF, nicotine use and oxygen dependence. Compared to whites, blacks had lower mortality (aOR: 0.79; CI: 0.69 - 099, p=0.043), respiratory failure (aOR: 0.67; CI: 0.59 - 0.81, p<0.001), mechanical support device utilization (aOR: 0.73, CI; 0.67 - 0.81, p<0.001), and pacemaker utilization (aOR: 0.37; CI: 0.18 - 0.78, p=0.008). Hispanics had a longer length of stay (21 days vs 17.7 days). Blacks had higher rates of PAC use than other racial minorities between and mortality rates in blacks were noted to decline significantly in patients that had PAC during hospitalizations for CS (aOR: 0.49, CI; 0.46 - 0.52, p<0.001). Conclusion: The utilization of PAC in patients with CS is associated with better outcomes, including mortality and this was noted as well in the individual racial subgroups. Despite these findings, racial disparities persist. These disparities could be alleviated by equitable distribution of healthcare resources.