Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology · 2012
Pulmonary valve-in-valve implants: how long do they prolong reintervention and what causes them to fail?
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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История · было → стало
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Law Kelsey B, Phillips Katharine R B, Butany Jagdish
Аннотация
BACKGROUND: The valve-in-valve (VinV) procedure is a minimally invasive, transcatheter, off-pump, alternative to conventional valve replacement, which uses a failing bioprosthesis to anchor a second transcatheter-delivered prosthesis. This technique appears effective for prolonging freedom from reintervention and treating early device failure. However, it is unknown as to how long reintervention can be avoided.
METHODS: We present the pathological findings of a VinV explanted after 47 months, as well as the failure modes of these devices.
RESULTS: The VinV approach in our case ultimately failed, likely due to the proximity of the host's tissues to the prosthetic device, resulting in a combination of pannus, calcification, and a cusp tear.
CONCLUSIONS: Additional long-term follow-up of pulmonary VinV implantations is needed in order to determine the life span of VinVs and what causes them to fail.
METHODS: We present the pathological findings of a VinV explanted after 47 months, as well as the failure modes of these devices.
RESULTS: The VinV approach in our case ultimately failed, likely due to the proximity of the host's tissues to the prosthetic device, resulting in a combination of pannus, calcification, and a cusp tear.
CONCLUSIONS: Additional long-term follow-up of pulmonary VinV implantations is needed in order to determine the life span of VinVs and what causes them to fail.