Cardioscopically Guided Beating Heart Surgery: Paravalvular Leak Repair.

ABSTRACT:

Purpose

There remains a paucity of direct visualization techniques for beating-heart intracardiac procedures. To address this need, we evaluated a novel cardioscope in the context of aortic paravalvular leaks (PVLs) localization and closure.

Description

A porcine aortic PVL model was created using a custom-made bioprosthetic valve, and PVL presence was verified by epicardial echocardiography. Transapical delivery of occlusion devices guided solely by cardioscopy was attempted 13 times in a total of three pigs. Device retrieval after release was attempted six times. Echocardiography, morphologic evaluation, and delivery time were used to assess results.

Evaluation

Cardioscopic imaging enabled localization of PVLs via visualization of regurgitant jet flow in a paravalvu

SUBMITTER: Rosa B 

PROVIDER: S-EPMC5572817 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature