Key result
Self-expandable TAVR linked to substantially lower prosthesis-patient mismatch rates vs balloon-expandable devices.
Why the study?
Prosthesis-patient mismatch is associated with worse outcomes after SAVR and occurs in a significant proportion of TAVR procedures, particularly in patients with small aortic annuli.
Do self-expandable TAVR devices reduce prosthesis-patient mismatch compared to balloon-expandable devices in patients with small aortic annuli?
Observational (n=131)
Do self-expandable TAVR devices reduce prosthesis-patient mismatch compared to balloon-expandable devices in patients with small aortic annuli?
In patients with small aortic annuli, self-expandable TAVR devices achieve lower rates of prosthesis-patient mismatch compared to balloon-expandable devices, though at the cost of higher rates of paravalvular leak.
May lower PPM in small annuli with self-expandable TAVR; leaves open net benefit given higher paravalvular leak.
Prosthesis−patient mismatch (PPM) is associated with worse outcomes following surgical aortic valve replacement (SAVR). PPM has been identified in a significant proportion of TAVR, particularly in patients with small aortic annuli. Our objective was to evaluate the hemodynamic performances of balloon-expandable (BE) (Sapiens 3TM) versus two different self-expandable (SE) (Evolut ProTM, Accurate NeoTM) TAVR devices in patients with small aortic annulus defined by a computed tomography aortic annulus area (AAA) between 330 and 440 mm2. We enrolled 131 consecutive patients corresponding to 76 Sapiens 3 23 mm (58.0%), 26 Evolut Pro (19.9%) and 29 Accurate Neo (22.1%). Mean age was 82.5 ± 7.06 years, 22.9% of patients were male and mean Euroscore was 4.0%. Mean AAA was 374 ± 27 mm2 for Sapiens 3, 383 ± 29 mm2 for Corevalve Evolut Pro and 389 ± 25 mm2 for Accurate Neo. BE devices were associated with significantly higher rates of PPM (39.5%) as compared to SE devices (15.4% for Corevalve Evolut Pro and 6.9% for Accurate Neo) (p < 0.0001). Paravalvular leaks ≥ 2/4 were more often observed in SE devices (15.4% for Corevalve Evolut Pro and 17.2% for Accurate Neo) than in BE devices (2.6%) (p = 0.007). In conclusion, SE TAVR devices did achieve better hemodynamic results despite higher rates of paravalvular leaks. Therefore, SE TAVI devices could be considered as first choice in small aortic anatomy.
No takes yet. Share an insight, caveat, or question.
Ferrara et al. (2022) conducted an observational in Small aortic annuli undergoing TAVR (n=131). Self-expandable TAVR devices (Evolut Pro, Accurate Neo) vs. Balloon-expandable TAVR device (Sapiens 3) was evaluated on Prosthesis-patient mismatch (PPM) (p=<0.0001). Self-expandable TAVR devices had significantly lower rates of prosthesis-patient mismatch compared to balloon-expandable devices (15.4% and 6.9% vs 39.5%; p<0.0001).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: