<p><strong>Aim.</strong> The study was designed to compare the immediate echocardiographic characteristics of aortic valve reconstruction by using autologous pericardium and the method proposed in 2007 by Shigeyuki Ozaki, as well as aortic valve replacement by means of frame-mounted biological prostheses Medtronic HANCOCK®II T505 CINCH® II and the Carpentier-Edwards PERIMOUNT.<br /><strong>Methods.</strong> Over a period from January 2014 to February 2016, 76 patients underwent aortic valve replacement by means of frame-mounted biological prostheses Medtronic HANCOCK®II T505 CINCH® II (n=41) and Carpentier-Edwards PERIMOUNT (n=35) at our hospital. 20 patients underwent the Ozaki procedure. These three groups of patients were assigned to the study. Demographic and preoperative indicators of patients from all three groups were homogeneous (р&gt;0.05). The evaluation of the aortic valves replaced was carried out by echocardiography.<br /><strong>Results.</strong> Echocardiography was performed before the procedure and in the early postoperative period. Statistical analysis using ANOVA showed significantly lower values of the aortic valve pressure gradient (p&lt;0.001) and larger effective orifice area and indexed effective orifice area of the valve (p&lt;0.001) in the group of the Ozaki procedure.<br /><strong>Conclusion</strong>. According to echocardiography data, in the immediate postoperative period the Ozaki procedure is associated with lower mean and peak gradients of pressure on the aortic valve and larger effective orifice area and indexed effective orifice area of the valve, as compared with the frame-mounted biological aortic prostheses Medtronic HANCOCK®II T505 CINCH® II and the Carpentier-Edwards PERIMOUNT.<br /><br />Received 27 May 2016. Accepted 24 June 2016.</p><p><strong>Funding:</strong> The study had no sponsorship. <br /><strong>Conflict of interest:</strong> The authors declare no conflict of interest.</p>

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Objective: To analyze outcomes of 4 transcatheter aortic valve replacements using a polytetrafluoroethylene leaflet valve in patients with a history of the Bentall–De Bono procedure.Methods: We retrospectively analyzed a series of 4 cases. From February 2019 to March 2022 in Federal Center for Cardiovascular Surgery (Penza, Russia), patients with a history of the Bentall–De Bono procedure underwent transaortic aortic valve implantation of the MedLAB-CT balloon-expandable valve under cardiopulmonary bypass and cardioplegia. Valve No. 25 was implanted in 3 patients, and 1 patient received valve No. 23.Results: According to echocardiography, valve hemodynamic performance improved in the postoperative period: mean and peak pressure gradients were 11.5 and 24 mm Hg, respectively; the median value of effective orifice area was 1.9 cm2, while mitral regurgitation in all cases did not exceed grade 1. Median cardiopulmonary bypass and myocardial ischemia times were 59 and 31 minutes, respectively. There was no immediate and remote mortality. No complications were reported in the postoperative period.Conclusion: The proposed replacement of the valved conduit’s compromised part after the Bentall–De Bono procedure can significantly reduce the extent of surgery, cardiopulmonary bypass and myocardial ischemia times, as well as simplify the procedure. Received 1 December 2022. Revised 10 February 2023. Accepted 16 February 2023. Informed consent: The patient’s informed consent to use the records for medical purposes is obtained. Funding: The study did not have sponsorship. Conflict of interests: The authors declare no conflict of interest. Contribution of the authorsLiterature review: V.A. Karnakhin, I.D. PotopalskiyDrafting the article: V.V. Bazylev, A.B. Voevodin, I.D. Potopalskiy, V.A. KarnakhinCritical revision of the article: A.A. Kuznetsova, M.P. PatelSurgical treatment: V.V. Bazylev, A.B. VoevodinFinal approval of the version to be published: V.V. Bazylev, A.B. Voevodin, I.D. Potopalskiy, V.A. Karnakhin, M.P. Patel, A.A. Kuznetsova