IMR Press / RCM / Volume 22 / Issue 4 / DOI: 10.31083/j.rcm2204168
Open Access Original Research
A modified technique for aortic prosthesis implantation after prosthetic valve endocarditis complicated by complex paraannular aortic abscess
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1 Department of Cardiovascular Surgery, Anthea Hospital, GVM Care&Research, 70124 Bari, Italy
2 Department of Cardiac Surgery, Paracelsus Medical University, 90471 Nuremberg, Germany
3 Department of Experimental and Clinical Medicine, “Magna Graecia” University, 88100 Catanzaro, Italy

These authors contributed equally.
Academic Editor: Carmela Rita Balistreri

Rev. Cardiovasc. Med. 2021, 22(4), 1621–1627; https://doi.org/10.31083/j.rcm2204168
Submitted: 25 August 2021 | Revised: 28 September 2021 | Accepted: 28 September 2021 | Published: 22 December 2021
Copyright: © 2021 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/).
Abstract

The aim of this study is to describe a modified technique for aortic prosthesis implantation in the sinuses of Valsalva without the use of a patch for aortic annular reconstruction in patients with prosthetic valve endocarditis complicated by aortic abscess. From January 2008 to March 2021, 47 patients underwent aortic valve replacement due to prosthetic aortic valve endocarditis. The new aortic prosthesis was implanted into the sinuses of Valsalva above the abscess left open to drain. The first step consists in passing U-shaped stitches with pledgets through the aortic wall approximately 5–7 mm above the abscess involving the annulus. In the second step, the prosthesis is fixed to the aortic wall. In the third step, a 10 mm wide Teflon strip is positioned along the external course of the aortic wall and U-shaped stitches without pledgets are passed from the outside to the inside to definitively fix the prosthetic annulus to the sinuses of Valsalva. In-hospital mortality was 8.5% (4/47 patients). Mean follow-up was 62 ± 37.7 months. Four patients died (9.3%). Predicted probability of cardiac vs non-cardiac mortality was not statistically significant (p = 0.88). Overall survival probability (freedom from all-cause death) at 3, 7 and 9 years was 97%, 87.5% and 75%, respectively. No patients presented with grade 2 or 3 peri-prosthetic leak, nor had endocarditis. Prosthetic valve endocarditis complicated by complex paraannular aortic abscess can be successfully addressed with good long-term results by using our alternative technique.

Keywords
Prosthetic valve endocarditis
Prosthetic aortic valve infective endocarditis
Aortic valve replacement
Aortomitral curtain abscess
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