Incidence and Outcomes of Emergency Intraprocedural Surgical Conversion During Transcatheter Aortic Valve Implantation: Insights from a Large Tertiary Care Center

During some transcatheter aortic valve implant (TAVI) procedures, complications require conversion to emergency open heart surgery (E-OHS). This study evaluated early and midterm outcomes in a large center over fifteen years. Patients were grouped by surgical risk and the study time was divided into three five-year periods. In the entire study period, 1.1 percent of TAVI patients (74/6903) required E-OHS. The rate of E-OHS decreased over the three periods, from 3.5 percent to 0.4 percent. However, the proportion of patients from the study with low or intermediate risk increased considerably, from 1 percent to 26 percent. In-hospital mortality was 62 percent in high-risk and 12.5 percent in low and intermediate-risk patients. One-year survival was 31.8 percent in high-risk and 87.5 percent in low/intermediate risk patients.