Abstract
BackgroundRandomized clinical trials have shown that transcatheter aortic valve replacement is noninferior to surgery in low surgical risk patients. We compared outcomes in patients treated with a sutured (stented or stentless) or sutureless surgical valve from the Evolut Low Risk Trial. MethodsThe Evolut Low Risk Trial enrolled patients with severe aortic stenosis and low surgical risk. Patients were randomized to self-expanding transcatheter aortic valve replacement or surgery. Use of sutureless or sutured valves was at the surgeons’ discretion. ResultsSix hundred eighty patients underwent surgical aortic valve implantation (205 sutureless, 475 sutured). The Valve Academic Research Consortium-2 30-day safety composite endpoint was similar in the sutureless and sutured group (10.8% vs 11.0%, P = .93). All-cause mortality between groups was similar at 30 days (0.5% vs 1.5%, P = .28) and 1 year (3.3% vs 2.6%, P = .74). Disabling stroke was also similar at 30 days (2.0% vs 1.5%, P = .65) and 1 year (2.6% vs 2.2%, P = .76). Permanent pacemaker implantation at 30 days was significantly higher in the sutureless compared with the sutured group (14.4% vs 2.9%, P < .001). Aortic valve–related hospitalizations occurred more often at 1 year with sutureless valves (9.1% vs 5.1%, P = .04). Mean gradients 1 year after sutureless and sutured aortic valve replacement were 9.9 ± 4.2 versus 11.7 ± 4.7 mm Hg (P < .001). ConclusionsAmong low-risk patients, sutureless versus sutured valve use did not demonstrate a benefit in terms of 30-day complications and produced marginally better hemodynamics but with an increased rate of pacemaker implantation and valve-related hospitalizations.
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