OBJECTIVE To investigate the outcome of mechanical mitral valve replacement in children after up to 11 years of follow up. DESIGN Retrospective analysis of case records. Operative survivors underwent echocardiographic studies to define current haemodynamic status and prosthetic valve function. SETTING Tertiary referral centre. PATIENTS All 54 children who underwent mitral valve replacemen...

From 1982 till 1999, our department performed a total of 2970 heart valve replacements--92% of which were with mechanical heart valves. During this period, there were 8 patients who came to our department with mechanical heart valve obstruction. All these patients presented with signs of heart failure or compromised haemodynamic. Confirmatory tests included transthoracic or transoesophageal ech...

OBJECTIVE To assess the benefit for patients older than 65 years of aortic valve replacement with stentless biological heart valves in comparison with mechanical valves. DESIGN Multiple regression analysis of a retrospective follow up study. SETTING Single cardiothoracic centre. PATIENTS Between 1996 and 2001, 392 patients with a mean age of 74 years underwent aortic valve replacement wit...

Objective: To assess the benefit for patients older than 65 years of aortic valve replacement with stentless biological heart valves in comparison with mechanical valves. Design: Multiple regression analysis of a retrospective follow up study. Setting: Single cardiothoracic centre. Patients: Between 1996 and 2001, 392 patients with a mean age of 74 years underwent aortic valve replacement with ...

In an electro-mechanical valve actuated engine, solenoid actuators drive the valves that control airflow into the cylinders, allowing elimination of the camshaft and flexible control of the valve timing. Individual control of the valves provides flexibility in valve timing over all engine operating conditions and fully enables the benefits of variable valve timing. This paper describes a closed...

Introduction: Heart valve disease in pediatricsis an increasing global concern, especially in developing countries. This study aims to determine the clinical outcomes of pulmonary valve replacement (PVR) surgery in pediatrics. Methods: The authors retrospectively identified all pediatrics undergoing PVR surgery at Imam Reza hospital (Mashhad, Iran) between 2000 and 2020. Their medical records...

Submitted for the DFD16 Meeting of The American Physical Society Fluid-structure interaction in the left ventricle of the human heart coupled with mitral valve VALENTINA MESCHINI, Gran Sasso Science Institute, MARCO DONATO DE TULLIO, Politecnico di Bari, GIORGIO QUERZOLI, Universit di Cagliari, ROBERTO VERZICCO, Universit di Roma Tor Vergata and University of Twente — In this paper Direct Numer...

When replacing an aortic valve with a mechanical prosthesis it is essential to make the right decision, mine was on the Bicarbon Overline valve (SORIN Group). Bicarbon Overline is a bileaflet mechanical valve designed for a Totally Supra-Annular implant. The innovative design of the valve is highlighted by curved leaflets with an 80° opening angle and an aerofoil titanium housing profile leadin...

OBJECTIVE Early recurrency after surgery for acute endocarditis is a life-threatening complication. Allograft valves are supposed to have a higher resistance to recurrent infection, thus several authors claim them to be the replacement device of choice in cases of aortic endocarditis. However, allografts have two major drawbacks: their availability is limited, and most of the patients require r...

We report the case of a 39-year-old man who underwent life-saving aortic valve replacement with a bioprosthesis for acute endocarditis while on the liver transplant waiting list, followed by successful transplantation and late valve re-replacement with a mechanical prosthesis, 10.8 years after primary valve surgery.