Abstract 18548: Racial Disparities in the In-Hospital Outcomes of Patients Undergoing Percutaneous Peripheral Endovascular Procedures

Introduction: Endovascular revascularization is becoming the mainstay management of peripheral vascular disease (PVD). Our study seeks to find out the impact of racial disparity on the outcome of this procedure.

Methods: We queried the National Inpatient Sample (NIS) database from 2016 to 2019. The NIS is the largest all-payer inpatient healthcare database in the United States. The NIS was searched for hospitalization of adult patients with PVD who had endovascular revascularization, using the International Classification of Diseases, Tenth Revision (ICD-10) codes. Following Propensity score matching, we assessed for a primary outcome of inpatient mortality. The secondary results were acute kidney injury (AKI), amputation, cardiac arrest, cardiogenic shock, total hospital charge (THC), and length of stay (LOS).

Results: About 395,510 patients with PVD had endovascular revascularization; 322,015 patients who had the procedure were either White (n=254,840, 79.1%) or Black (n=67,175, 20.9%). White patients had a mean age of 69.2±0.1 years compared to 64.9±0.1 years in Black patients (males: 61.1% versus 53.4%; females: 38.9% versus 46.6%). Compared to White patients, Blacks had significantly lower in-hospital mortality (2.2% versus 2.6%; p=0.005) and cardiogenic shock (0.9% vs 1.2%; p=0.004); however, they had significantly higher AKI (21.6% vs 19.0% p-value 0.015), amputations (7.6% vs 4.4% p-value <0.001), and LOS (10.1 vs 7.5; p-value <0.001) compared to Whites.

Conclusions: This study showed that compared to Whites, Black patients were more predisposed to amputations, AKI, and higher LOS despite having a lower mortality rate after endovascular revascularization.