Clinical Trial Principles and Endpoint Definitions for Paravalvular Leaks in Surgical Prosthesis: An Expert Statement. [Review] 

 -  2017 
<br/><br/>Available online from MWHC library: 1995 - present, Available in print through MWHC library:1999-2007 
<br/><br/> Copyright (c) 2017 American College of Cardiology Foundation and European Society of Cardiology. Published by Elsevier Inc. All rights reserved.  The VARC (Valve Academic Research Consortium) for transcatheter aortic valve replacement set the standard for selecting appropriate clinical endpoints reflecting safety and effectiveness of transcatheter devices, and defining single and composite clinical endpoints for clinical trials. No such standardization exists for circumferentially sutured surgical valve paravalvular leak (PVL) closure. This document seeks to provide core principles, appropriate clinical endpoints, and endpoint definitions to be used in clinical trials of PVL closure devices. The PVL Academic Research Consortium met to review evidence and make recommendations for assessment of disease severity, data collection, and updated endpoint definitions. A 5-class grading scheme to evaluate PVL was developed in concordance with VARC recommendations. Unresolved issues in the field are outlined. The current PVL Academic Research Consortium provides recommendations for assessment of disease severity, data collection, and endpoint definitions. Future research in the field is warranted. 
<br/><br/><br/>English 
<br/><br/><label>ISSN: </label>0735-1097 
<br/><br/><label>Subjects--Topical Terms: </label><br/>*Aortic Valve<br/>*Heart Valve Prosthesis/ae [Adverse Effects]<br/>*Outcome Assessment (Health Care)/mt [Methods]<br/>*Transcatheter Aortic Valve Replacement<br/>Clinical Trials as Topic<br/>Echocardiography<br/>Humans<br/>Research Design<br/>Risk Assessment
<br/><br/><label>Subjects--Geographic Terms: </label><br/>MedStar Heart & Vascular Institute
<br/><br/><label>Index Terms--Function: </label><br/>Journal Article<br/>Review