Abstract 17374: Trends in Prevalence and Percutaneous Coronary Intervention Utilization Among Patients With Anomalous Coronary Artery.

Introduction: Previous studies on anomalous coronary artery suggested its association with significant stenosis and worse in-hospital outcomes. Limited information is available about the prevalence of anomalous coronary artery and utilization of Percutaneous coronary intervention(PCI) in this population. Methods: We derived our study cohort from HCUP's Nationwide Inpatient Sample (NIS) database (2004-2014). Anomalous coronary artery and PCI related hospitalizations were recognized using ICD-9-CM diagnostic code 746.85 and procedural code 36.06,36.07 and 00.66 respectively in either primary or secondary fields, Cochran-Armitage trend test was used to generate p-value. Results: We identified 59,819 patients with anomalous coronary artery in our study cohort (83.6% age ≥50 years, 69.5% male, 65.2% white), exhibiting significant increase from 4,187 in 2004 to 5940 in 2014 (relative increase of 45.3 %). Utilization of PCI in this population has increased from 14% in 2004 to 17.3 % in 2014 (ptrend <.0001). The most common comorbid conditions coexisting with PCI admissions were dyslipidemia (68.5%), Hypertension (66%), Coronary artery disease (54.2%) and Smoking (41.3%), STEMI (27.3%); All exhibit increasing prevalence from 2004-2014 (ptrend <.0001). (Fig 1B). Weekend admission has increased from 16.2 % to 23% (ptrend <.0001) and maximum PCI (40.6%) were performed in the southern region of United States. Conclusions: Prevalence of anomalous coronary artery has significantly increased in united states with a concomitant increase in PCI utilization in this population. We also noted a concurrent increase in the prevalence of comorbidities such as smoking, dyslipidemia, coronary artery disease, hypertension, STEMI and weekend admission over the study period in these patients. [ABSTRACT FROM AUTHOR]