Complex cardiac surgery in a high-risk patient with new-onset severe mitral regurgitation and aorta to right ventricular fistula after transcatheter aortic valve implantation: a case report.

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Version: Final published version
License: CC BY-NC 4.0
Serval ID
serval:BIB_59CB3FFFB63E
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Institution
Title
Complex cardiac surgery in a high-risk patient with new-onset severe mitral regurgitation and aorta to right ventricular fistula after transcatheter aortic valve implantation: a case report.
Journal
European heart journal. Case reports
Author(s)
Verdugo-Marchese M., Monney P., Muller O., Kirsch M.
ISSN
2514-2119 (Electronic)
ISSN-L
2514-2119
Publication state
Published
Issued date
10/2020
Peer-reviewed
Oui
Volume
4
Number
5
Pages
1-5
Language
english
Notes
Publication types: Case Reports
Publication Status: epublish
Abstract
Transcatheter aortic valve implantation (TAVI) is the procedure of choice for aortic stenosis in high surgical risk patients, but it is no free from complications.
A 86-year-old patient with severe aortic stenosis underwent TAVI 3 years ago with an Edwards Sapiens valve by femoral access. In the echocardiography follow-up, an aorta-right ventricular (Ao-RV) fistula was noted with restrictive flow and no significant shunt and it was treated conservatively. Three years after TAVI, the patient underwent cardiac surgery because of worsening heart failure due to a severe degenerative mitral regurgitation with tethering of P2 due to left ventricular remodelling, a posterior jet of severe regurgitation, and left ventricular dilatation. Surgical replacement of the TAVI and aortic root with a bioprosthesis (Medtronic Freestyle) and direct closure of the fistula was performed along with the mitral valve replacement. The patient was discharged with a good clinical result and no evidence of remaining Ao-RV fistula at transthoracic echocardiography.
Aorta-right ventricular fistula is a rare entity. Most reported cases arise after rupture of a congenital coronary sinus aneurism, endocarditis, trauma, and aortic valve or aortic root surgery. This is the 10th reported case after TAVI (9 after an Edwards Sapiens TAVI). Non-significant shunt can be treated conservatively but development of heart failure and death are described in significant shunts. Balloon post-dilatation and the absence of surgical calcium debridement inherent to TAVI may theoretically contribute to the development of the fistula. Surgical replacement and closure of the fistula is a therapeutic option for this entity even in high-risk patients.
Keywords
Aortic valve replacement, Aortocardiac fistula, Aorto–right ventricular fistula, Case report, Transcatheter aortic valve implantation (TAVI)
Pubmed
Web of science
Open Access
Yes
Create date
23/11/2020 14:23
Last modification date
05/06/2021 6:33
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