Abstract
Bioprosthetic heart valves do not usually require formal anticoagulation as they are
less thrombogenic than their mechanical counterparts. However, valve thrombosis has
been reported after both transcatheter and surgical aortic bioprosthesis implantation.
Short-term anticoagulation after surgical bioprosthesis implantation is often recommended
while endothelialisation of the prosthesis takes place, particularly for mitral valve
implants. There have been no reports of tissue heart valve thrombosis in transcatheter
mitral valve replacement. We describe our experience and successful treatment of such
a case.
Résumé
Les valvules cardiaques bioprothétiques ne nécessitent habituellement pas d’anticoagulation
systématique puisqu’elles sont moins thrombogéniques que leurs pendants mécaniques.
Toutefois, on a rapporté des thromboses valvulaires après l’implantation d’une bioprothèse
valvulaire aortique par cathéter et après l’implantation chirurgicale d’une bioprothèse
valvulaire aortique. L’anticoagulation à court terme après l’implantation chirurgicale
d’une bioprothèse est souvent recommandée lors de l’endothélialisation de la prothèse,
particulièrement pour les implants valvulaires mitraux. On ne rapporte aucun cas de
thrombose de la valve cardiaque tissulaire lors du remplacement valvulaire mitral
par cathéter. Nous faisons part de notre expérience et de la réussite du traitement
d’un tel cas.
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References
- Reduced leaflet motion after transcatheter aortic-valve replacement.N Engl J Med. 2020; 382: 130-139
- Thrombosis of prosthetic heart valves: diagnosis and therapeutic considerations.Heart. 2007; 93: 137-142
- Possible subclinical leaflet thrombosis in bioprosthetic aortic valves.N Engl J Med. 2015; 373: 2015-2024
- Early aortic transcatheter heart valve thrombosis.Circ Cardiovasc Interv. 2015; 8e001596
- Subclinical leaflet thrombosis in surgical and transcatheter bioprosthetic aortic valves: an observational study.Lancet. 2017; 389: 2383-2392
Article info
Publication history
Published online: April 14, 2020
Accepted:
March 1,
2020
Received:
February 2,
2020
Footnotes
See page 1690.e8 for disclosure information.
Identification
Copyright
© 2020 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.
