Incidence, characteristics, and outcome of noncardiac surgery following transcatheter aortic valve implantation.

Background: Planning noncardiac surgery after transcatheter aortic valve implantation (TAVI) is challenging. We evaluated the incidence, characteristics, and outcome of noncardiac surgeries in patients who underwent TAVI.

Methods: We retrieved data from the Prospective Segeberg TAVI registry of all patients who received TAVI between 2007 and 2020. Type, timing, urgency, and risk of noncardiac surgery were assessed. We evaluated the patients' clinical outcomes within 30 days following noncardiac surgery that included death, myocardial infarction, bleeding, stroke, and acute heart failure. A composite outcome of all adverse events was proposed to independently predict 30 day adverse events.

Results: Among 1602 patients, 104 patients (mean age, 79.9 ± 7.14 years; 61 (58.7%) females) underwent 148 noncardiac surgeries after TAVI. More than half of the noncardiac surgeries were considered elective (n = 84, 56.7%). Procedures were categorized into low-risk (n = 27, 18.2%), intermediate-risk (n = 102, 68.9%), and high-risk (n = 19, 12.8%) surgery. The composite outcome of adverse events occurred after 57 noncardiac surgeries (38.5% of all procedures) and after more than half of the surgeries in the high-risk group (n = 11, 57.9%). Major or life-threatening bleeding occurred in 24 noncardiac surgeries (19.1%) and was more frequent in high-risk surgeries than in low- and intermediate-risk surgeries (36.8%, p < 0.047). High-risk category of surgery was independently associated with increased risk of the composite outcome (adjusted OR, 3.99; 95% CI 1.12-14.23; p = 0.033).

Conclusion: Noncardiac surgery after TAVI was performed in 6.5% patient of our study cohort. High-risk noncardiac surgeries were associated with increased risk of adverse events.