Cor Vasa 2020, 62(6):547-550 | DOI: 10.33678/cor.2020.048

The Role of Modification of the Original Ozaki Technique in the Treatment of Aortic Valve Diseases

Adrián Kolesára, Tomáš Toporcera, Petr Kačerb, Miroslav Gejguša, Martin Sivčoa, František Sabol
a Department of Heart Surgery, Medical Faculty, Pavol Jozef Šafárik University and the Eastern Slovak Institute for Cardiovascular Diseases Ltd., Košice, Slovak Republic
b Department of Cardiac Surgery, Third Faculty of Medicine, Charles University and Kralovske Vinohrady University Hospital, Prague, Czech Republic

The aim of this pilot study is to present our one-year experience with the modification of the original Ozaki procedure for patients with an aortic valve stenosis and aortic valve infective endocarditis. Thirteen patients at the age of 70.5 ± 10 (women/men: 8/5) underwent a replacement of the aortic valve using autologous or heterologous equinus pericardium. The indication for surgery was aortic valve stenosis (n = 10) or aortic valve regurgitation due to infective endocarditis (n = 3). Concomitant MAZE procedure (n = 2), aortocoronary bypass (n = 1), and left ventricular outflow tract myectomy (n = 1) were performed in four patients. One patient refused blood transfusion for religious reasons. The duration of cardiopulmonary bypass was 117.5 ± 14.5 minutes and the X-clamp time was 107.0 ± 14.4 minutes. The mean gradient after surgery was 5.1 ± 1.9 mmHg; the peak gradient was 5.8 ± 2.0 mmHg; the aortic valve area was 3.3 ± 0.5 cm2 and aortic valve regurgitation was 0.3 ± 0.2. No 30-day mortality and no redo surgery due to valve failure were recorded. One patient died three months after surgery due to non-valve-related reasons. The modified Ozaki technique is a potentially effective alternative for younger patients rejecting anticoagulant medications and requiring aortic valve surgery. The preferred target group of patients for the use of this technique are those with a small aortic annulus and those with active infectious endocarditis.

Keywords: Aortic valve stenosis, Infective endocarditis, Ozaki (Benaki) procedure

Received: March 28, 2020; Revised: May 14, 2020; Accepted: May 19, 2020; Published: December 11, 2020  Show citation

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Kolesár A, Toporcer T, Kačer P, Gejguš M, Sivčo M, Sabol F. The Role of Modification of the Original Ozaki Technique in the Treatment of Aortic Valve Diseases. Cor Vasa. 2020;62(6):547-550. doi: 10.33678/cor.2020.048.
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