Journal of cardiac surgery
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Case Reports
Interventricular septal rupture after transcatheter aortic valve implantation: surgical and perioperative management.
Transcatheter aortic valve implantation (TAVI) is associated with various complications, usually related to valve positioning or prosthesis delivery. We report the rare complication of an iatrogenic ventricular septal defect, secondary to aortic annulus disruption after TAVI-transfemoral procedure, generating a significant left-to-right shunt and cardiac failure. Open surgical procedures under cardiopulmonary bypass remain the best option for this lethal complication.
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We report a 62-year-old female who required surgery for severe mitral regurgitation. Under robotic assistance, the valve was repaired by transection of the fibrous bridge, implantation of four neo-chordaes to the anterior leaflet, commissuroplasty of the posterolateral commissure, and annuloplasty.
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Patient-prosthesis mismatch has been identified as a risk factor for mortality after aortic valve replacement and for structural valve deterioration (SVD) in patients receiving a bioprosthetic aortic valve. The aim of the present study was to compare the incidence of aortic valve bioprosthesis replacement for SVD in patients with mismatch to a population without mismatch. ⋯ Patients suffering from mismatch were twice as likely to undergo reoperation for aortic bioprosthesis replacement for SVD than those without mismatch.
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The immediate postischemic period is marked by elevated intracellular calcium levels, which can lead to irreversible myocyte injury. Del Nido cardioplegia was developed for use in the pediatric population to address the inability of immature myocardium to tolerate high levels of intracellular calcium following cardiac surgery. Our aim in this study is to determine if this solution can be used safely and effectively in an adult, reoperative population. ⋯ Del Nido cardioplegia use in an adult, reoperative aortic valve population offers equivalent postoperative outcomes when compared with whole blood cardioplegia. In addition, use of del Nido solution requires lower total and retrograde cardioplegia volumes in order to achieve adequate myocardial protection.
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Interest in sutureless aortic bioprostheses is growing because of the potential advantages that such devices can bring in facilitating minimally invasive approaches. Video assistance can potentially enhance details of decalcification and sutureless valve sizing. We review the feasibility of sutureless aortic valve replacement (AVR) via a minimally invasive video-assisted (MIVA) right anterior minithoracotomy. ⋯ The described approach appears to be safe and feasible with adequate clamp times. Video assistance allows optimal visualization of the aortic root and accurate valve delivery, without conflict between the device, the camera, and the instruments, making this setting an encouraging baseline towards the assessment of the totally endoscopic approach.