B-44 | 30-Day Readmission Rates of Transcatheter Aortic Valve Replacement in Underlying Obstructive vs Restrictive Pulmonary Diseases

Abstract

Our objective is to compare the 30-day readmission rates for patients undergoing transcatheter aortic valve replacement (TAVR) with underlying obstructive and restrictive pulmonary diseases. We conducted a retrospective cohort analysis using National Readmission Databases 2016-2018 with ICD-10 codes. Primary outcome was readmission rates for patients hospitalized for TAVR with and without underlying chronic pulmonary diseases (CPD). 30-day readmission rate was higher for TAVR patients with CPD as compared to patients without CPD (14.7% vs 11.6%) (Table 1). Mortality rate is also higher in TAVR index admissions with CPD as compared to without CPD (19% vs 13.8%) and also for TAVR 30-day readmissions (4.1% vs 3.6%). Table 2 summarizes the most common principal diagnosis for 30-day readmissions for TAVR Patients with chronic pulmonary disease (CPD). TAVR patients with restrictive pulmonary disease have higher 30-day readmission rate than obstructive pulmonary disease (18.8% vs 14.5%). Among the obstructive pulmonary disease, TAVR patients with underlying bronchiectasis have highest 30-day readmission rate (17.8%) while among restrictive pulmonary disease, TAVR patients with underlying hypersensitivity pneumonitis have the highest 30-day readmission rate (22.3%). TAVR patients with underlying CPD have higher readmission rates, mortality rates, mean length of stay, and mean total charges as compared to patients without CPD. TAVR patients with underlying restrictive pulmonary disease have higher readmission rates than obstructive pulmonary disease.