3.2 Operative parameters
Operative procedures and intraoperative findings are shown in Table 2. In this study, 75% of patients underwent TAVI through the trans-femoral approach, 19% through the trans-apical, 3%, through the trans-subclavian, and 2% through the ascending aorta. A balloon-expandable valve was implanted in 72% of patients, while a self-expandable valve was implanted in 28%. The interventional approach, type of prosthetic valve, procedure time, and blood transfusion rates were statistically equivalent between the two groups.