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Updated: May 12, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
A Rare Complication of Transcatheter Aortic Valve Replacement: Delayed Down Migration of a Portico Valve
Busra Guvendi Sengor1, Cemalettin Yilmaz2, Regayip Zehir1
1Kartal Kosuyolu High Specialty Training and Research Hospital, Clinic of Cardiology, Istanbul, Turkey.
Abstract:
There are some complications after transcatheter aortic valve replacement (TAVR), which is an alternative to surgery for the treatment of severe aortic stenosis. Valve migration, an unusual but life-threatening complication of TAVR, usually occurs during or several hours after the procedure and is associated with poor outcome. Therefore, operators must be experienced in rescue treatments. Placement of a second prosthesis as a salvage strategy appears to be a safe method to avoid the need for conversion to surgery.
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