Key result
Ice-cooling facilitates self-expanding TAVR explantation by increasing nitinol frame deformability.
Case Report (n=1)
No
Answers are grounded in this paper and cite their sources.
Cooling a self-expanding nitinol TAVR valve with ice during surgical explantation induces a phase transformation that increases valve deformability, facilitating safer and less traumatic removal.
BACKGROUND: Transcatheter aortic valve explantation is the fastest-growing cardiac operation in the United States, yet optimal techniques are not well-defined. CASE PRESENTATION: Here, we present a case of explantation of a self-expanding CoreValve Evolut PRO valve (Medtronic, Minneapolis, Minnesota). CONCLUSIONS: This report demonstrates a reproducible technique that leverages the temperature-dependent properties of nitinol to facilitate safe surgical explantation of self-expanding transcatheter aortic valves.
No takes yet. Share an insight, caveat, or question.
Gillinov et al. (2026) conducted a case report in Prosthetic valve stenosis and paravalvular leak after TAVR (n=1). Temperature-triggered nitinol manipulation (cooling with ice) was evaluated on Successful explantation of the TAVR valve. Cooling a self-expanding nitinol transcatheter aortic valve with ice induced a phase transformation that increased valve deformability, facilitating safe surgical explantation.
Synapse has enriched 10 related papers. Consider them for comparative context: