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AORTIC VALVE RECONSTRUCTION SURGERY USING AUTOLOGOUS PERICARDIUM: THE EXPERIENCE IN VIETNAM
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  • Thanh Hung Ngo,
  • Cong Huu Nguyen,
  • Duc Thinh Do,
  • Hoang Long Luong,
  • Thao Nguyen Phan,
  • Trung Hieu Nguyen,
  • Linh Ngo,
  • Tran Thuy Nguyen,
  • Thanh Le,
  • Quoc Hung Doan
Thanh Hung Ngo
E Hospital, Hanoi

Corresponding Author:ngohunghmu@gmail.com

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Cong Huu Nguyen
E Hospital, Hanoi
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Duc Thinh Do
E Hospital, Hanoi
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Hoang Long Luong
E Hospital, Hanoi
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Thao Nguyen Phan
E Hospital, Hanoi
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Trung Hieu Nguyen
E Hospital, Hanoi
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Linh Ngo
E Hospital, Hanoi
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Tran Thuy Nguyen
Vietnam National University Hanoi
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Thanh Le
Vietnam National University Hanoi
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Quoc Hung Doan
Hanoi Medical University
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Abstract

Objective: The study aimed to evaluate the indications and describe the aortic valve reconstruction techniques by Ozaki’s procedure in Vietnam and report mid-term outcomes of this technique in Vietnam. Methods: Between June 2017 and December 2019, 72 patients diagnosed with isolated aortic valve disease, with a mean age of 52.9 (19 – 79 years old), and a male:female ratio of 3:1 underwent aortic valve reconstruction surgery by Ozaki’s technique at Cardiovascular Center, E Hospital, Vietnam. Results: The aortic valve diseases consisted of aortic stenosis (42%), aortic regurgitation (28%), and a combination of both (30%). In addition, the proportion of aortic valves with bicuspid morphology and small annulus (≤ 21 mm) was 28% and 38.9%, respectively. The mean aortic cross-clamp time was 106 ± 13.8 minutes, mean cardiopulmonary bypass time was 136.7 ± 18.5 minutes, and 2.8% of all patients required conversion to prosthetic valve replacement surgery. The mean follow-up time was 26.4 months (12- 42 months), the survival rate was 95.8%, the reoperation rate was 2.8%, and rate of postoperative moderate or higher aortic valve regurgitation was 4.2%. Postoperative valvular hemodynamics was favorable, with a peak pressure gradient of 16.1 mmHg and an effective orifice area index of 2.3 cm 2. Conclusions: This procedure was safe and effective, with favorable valvular hemodynamics and a low rate of valvular degeneration. However, more long-term follow-up data are needed.
10 Oct 2021Submitted to Journal of Cardiac Surgery
11 Oct 2021Submission Checks Completed
11 Oct 2021Assigned to Editor
18 Oct 2021Reviewer(s) Assigned
11 Nov 2021Review(s) Completed, Editorial Evaluation Pending
12 Nov 2021Editorial Decision: Revise Minor
29 Nov 20211st Revision Received
01 Dec 2021Submission Checks Completed
01 Dec 2021Assigned to Editor
01 Dec 2021Reviewer(s) Assigned
15 Dec 2021Review(s) Completed, Editorial Evaluation Pending
22 Dec 2021Editorial Decision: Accept
May 2022Published in Journal of Cardiac Surgery volume 37 issue 5 on pages 1233-1239. 10.1111/jocs.16316