The number of heart valve surgeries is increasing, and 19,164 patients underwent heart
valve surgery in Japan in 2011. The early mortality rate has remained stable for more than …

I have just performed what, almost certainly, was the last implantation of a Medtronic Hall
valve (Figure 1) worldwide, 37 years (almost to the day) after its first human implantation. In …

Background: This study evaluated the long-term outcomes for up to 20 years after On-X
mechanical valve implantation in the left side of the heart. Methods and Results: Between …

Background: This study aimed to evaluate the early and late clinical outcomes after repeat
aortic valve replacement (AVR) for subaortic pannus in patients with mechanical valves …

Background Although pannus is an important cause of prosthetic valve dysfunction, the
minimum pannus size that can induce hemodynamic dysfunction has not yet been …

Aim Redo aortic valve surgery is usually associated with a high risk of mortality and
complications. The aim of this study was to investigate the perioperative and long-term …

Background Degenerated and failed bioprosthetic cardiac valves can safely be treated with
transcatheter valve-in-valve implantation in patients at high risk for reoperation. So far, non …

Background: This study aimed to evaluate the safety and feasibility of transaortic mitral
pannus removal (TMPR). Methods and Results: Between 2004 and 2016, 34 patients …

Background This study aimed to confirm the safety and feasibility of simple pannus removal
in patients with mechanical aortic valve dysfunction for pannus overgrowth by evaluating its …

A 69-year-old woman with a mechanical aortic valve presented with decompensated heart
failure. Emergent echocardiogram and fluoroscopy demonstrated acute aortic regurgitation …