Key result
Freestyle xenograft aortic root replacement can lead to rare, severe spontaneous sinus rupture.
Why the study?
Spontaneous rupture of the noncoronary sinus of the Freestyle xenograft after aortic root replacement has been reported but remains a rare and serious complication.
Case Report (n=8)
Answers are grounded in this paper and cite their sources.
Alerts clinicians to long-term surveillance for Freestyle recipients; extends recognition of atypical bioprosthetic wall failure modes.
The porcine stentless Freestyle xenograft (Medtronic Inc) has proved to be an ideal substitute for aortic root replacement (ARR) as it provides excellent hemodynamics and durability.1,2 Nonetheless, like other bioprostheses, structural valve deterioration is observed in the long term, mostly due to aortic cusp tears. However, spontaneous rupture of the Freestyle xenograft aortic wall has also been reported.3,4 We present 2 patients who developed pseudoaneurysm after ARR using a Freestyle xenograft, related to spontaneous rupture of the noncoronary sinus (NCS) of Valsalva.
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Gunga et al. (2022) conducted a case report in Aortic root replacement with Freestyle xenograft (n=8). Freestyle xenograft was evaluated on Spontaneous rupture of the noncoronary sinus. Spontaneous rupture of the noncoronary sinus is a rare but severe complication after aortic root replacement with the Freestyle xenograft, requiring surgical reoperation and meticulous imaging follow-up.
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