Durability of Nitinol in self-expanding devices
Francesco Nappi, Cristiano Spadaccio · 2026
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Description
Francesco Nappi and Cristiano Spadaccio consider in 2026 how long heart valve devices built with nitinol, a flexible nickel-titanium alloy, can be expected to last. They discuss a case where a failing sutureless valve was treated by placing a catheter valve inside it. Both device types rely on self-expanding nitinol frames to hold their shape and position without permanent stitching.
Solid data exist for tissue valves alone, yet far less is known when tissue and metal frames age together, or whether frame problems hasten valve wear. Other studies suggest catheter valves can match newer surgical valves for durability. The authors argue that long-term evidence on the combined devices is still badly needed.
Catalog record
| CREATOR | Francesco Nappi, Cristiano Spadaccio |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 16 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |