Key result
The Intuity Elite and Perceval S rapid deployment valves demonstrated comparable 30-day mortality (4.7% vs. 2.2%) and pacemaker implantation rates (7.0% vs. 4.4%) in patients with aortic stenosis.
Why the study?
Rapid deployment aortic valve replacement has emerged as an alternative to conventional AVR, prompting comparison of clinical outcomes and hemodynamics between the Perceval S and Intuity Elite valves.
Does the Intuity Elite rapid deployment valve compared to the Perceval S valve improve clinical outcomes and hemodynamics in patients with symptomatic aortic valve stenosis?
Cohort (n=372)
No
Does the Intuity Elite rapid deployment valve compared to the Perceval S valve improve clinical outcomes and hemodynamics in patients with symptomatic aortic valve stenosis?
Absolute Event Rate: 4.7% vs 2.2%
Both the Intuity Elite and Perceval S rapid deployment valves offer comparable 30-day mortality and complication rates, with the Intuity Elite demonstrating slightly better hemodynamic profiles.
Background Rapid deployment aortic valve replacement (RDAVR) has emerged as an alternative to conventional aortic valve replacement. This single-center study retrospectively analyzed clinical outcomes and hemodynamic performance of the Perceval S (LivaNova) and Intuity Elite (Edwards LifeSciences) rapid deployment valves (RDVs) in a propensity score matched patient cohort. Methods A total of 372 consecutive patients with symptomatic aortic valve stenosis underwent RDAVR between 2012 and 2018 at our institution. The Intuity Elite (INT group) and Perceval S (PER group) were implanted in 251 and 121 patients, respectively. After 1:1 propensity score matching for relevant preoperative comorbidities, 107 patient pairs were compared with respect to relevant perioperative data including hemodynamic parameter, postoperative pacemaker implantation, and 30-day all-cause mortality. Results Propensity score matching resulted in balanced characteristics between groups. Cardiopulmonary bypass and aortic cross-clamp time did not differ between groups, but more patients in the INT group received coronary artery bypass grafting compared with the PER group (56 vs. 42%; p = 0.055). Thirty-day mortality (4.7 vs. 2.2%) and need for permanent pacemaker implantation (7 versus 4.4%) were comparable between the INT and PER groups for isolated AVR and also for combined procedures, respectively. Cerebrovascular events showed comparable low rates for both RDVs (INT group [1.9%] vs. PER group [2.8%]). Indexed effective orifice area was higher in the INT group (0.90 vs. 0.82 cm2/m2) and coupled to a lower peak (17 ± 7 vs. 22 ± 8) and mean (10 ± 5 vs. 12 ± 4) pressure gradients compared with the PER group. Conclusions Our propensity score analysis in AVR patients showed good hemodynamic characteristics with comparable 30-day mortality rate and complications rates for both investigated RDVs.
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Liakopoulos et al. (2020) conducted a cohort in Symptomatic aortic valve stenosis (n=372). Intuity Elite rapid deployment valve vs. Perceval S rapid deployment valve was evaluated on 30-day all-cause mortality. The Intuity Elite and Perceval S rapid deployment valves demonstrated comparable 30-day mortality (4.7% vs. 2.2%) and pacemaker implantation rates (7.0% vs. 4.4%) in patients with aortic stenosis.
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