PO-05-004 CAUSES AND OUTCOMES OF EARLY READMISSIONS AFTER VENTRICULAR TACHYCARDIA ABLATION

Abstract

Patients with ventricular tachycardia (VT) who require VT catheter ablation are a population at high risk for readmissions. The contemporary causes and outcomes of readmission after VT ablation are not well-established. This study aimed to identify the causes and outcomes of readmission within 30 days after VT ablation procedure. Using the all-payer, nationally representative Nationwide Readmissions Database, our study included patients aged 18 years or older who underwent VT catheter ablation between 2017 and 2019. On the basis of the International Classification of Diseases, Tenth Revision, Clinical Modification, we identified and categorized the causes of readmissions by organ systems and analyzed their outcomes. Out of 3,170 patients who underwent VT ablation, 446 (14.1%) patients were readmitted within 30 days of the procedure. The most common cause of readmission was cardiac (n=326, 73.1%), followed by infectious (n=31, 7.0%), neurological (n=15, 3.4%), renal (n=13, 2.9%), gastrointestinal (n=9, 2.0%), respiratory (n=9, 2.0%), vascular (n=9, 2.0%), endocrinological (n=5, 1.1%) and hematological (n=5, 1.1%) events. Among the cardiac causes-related readmission, recurrent VT (65.0%), and congestive heart failure (CHF) (18.1%) were the most common etiologies. Among these causes of readmissions, patients readmitted due to CHF had the highest rate in readmission mortality (8.47%), prolonged length of hospital stay for more than 7 days (42.37%), non-home discharge (33.9%), and the highest cost of hospitalization. Recurrent VT was the most common cause of early readmission after VT ablation procedure. However, early readmission due to CHF had the poorest outcome with the highest mortality rate during the readmission.