A-72 | Readmission after Weight Loss Surgery among Patients with Established Ischemic Heart Diseases: To Avoid the Procedure or to Better Risk Stratify?

While bariatric surgery has shown to be advantageous for individuals with cardiovascular disease, established preoperative ischemic heart diseases (IHD) have been shown to increase the risk of postoperative complications. Hospitalized patients who underwent Roux-en-Y gastric bypass or sleeve gastrectomy were identified from the 2020 national readmission database (NRD), and stratified to IHD and non-IHD groups, using a propensity score matching analysis. A total of 2,945 were included in each of the IHD and non-IHD groups with comparable baseline characteristics and comorbidities. The risk of 30-day readmission was significantly higher among IHD group compared to non-IHD group (OR: 1.53, CI95%: 1.22-1.93). However, cardiovascular diseases were the underlying cause of readmission in only 6.5% of the cases. Patients with IHD had a significantly higher risk of mechanical ventilation (OR: 1.58, CI95%: 1.26-1.99), AMI (OR: 12.73, CI95%: 1.66-97.5), and AKI (OR:1.36, CI95%: 1.02-1.81). There was no in-hospital mortality associated with readmission in either of these groups. The length of stay (2.23 days [range: 0-37] vs. 1.95 days [0-49]) and total hospital charges ($72,844±$63,956 vs $66,728±$49,109) were significantly higher among IHD patients than non-IHD counterparts. Patients with IHD are at an increased risk of readmission due to cardiovascular diseases or other acute organ failure after weight life surgery necessitating better risk factor optimization.