Echocardiographic characteristics of successful deployment of the Das AngelWings atrial septal defect closure device: initial multicenter experience in the United States.

Journal Article (Clinical Trial;Journal Article;Multicenter Study)

The AngelWings device is a newer transcatheter device used for closure of secundum atrial septal defects (ASD) and patent foramen ovale (PFO), which consists of a self-centering, 2-disk system. Transesophageal echocardiography (TEE) plays a pivotal role in the deployment of the 2 disks of this device, on the appropriate sides of the atrial septum. The objective of this study is to describe the echocardiographic findings associated with successful deployment of the AngelWings device for closure of ASD and PFO. We evaluated the TEE studies of 70 patients enrolled in 4 United States centers, for closure of ASD and PFO with the AngelWings device. The TEE characteristics of successful and unsuccessful deployments were analyzed. Residual shunts across the atrial septum were assessed by TEE at the end of the procedure, 24 hours later by transthoracic echocardiography, and at 6 months by TEE. The deployment of the device was successful in 65 patients (93%). In the unsuccessful group, ASD size by TEE was larger (13.4 +/- 3.1 vs 8.9 +/- 4.7 mm, p <0.05). TEE was successful in identifying snagging of the device by intracardiac structures and prolapse of corners of the left or right atrial disk through the ASD, features that were difficult to identify by fluoroscopy. The echocardiographic characteristics outlined here are important guidelines for successful deployment of the AngelWings device.

Full Text

Duke Authors

Cited Authors

  • Banerjee, A; Bengur, AR; Li, JS; Homans, DC; Toher, C; Bank, AJ; Marx, GR; Rhodes, J; Das, GS

Published Date

  • April 15, 1999

Published In

Volume / Issue

  • 83 / 8

Start / End Page

  • 1236 - 1241

PubMed ID

  • 10215291

International Standard Serial Number (ISSN)

  • 0002-9149

Digital Object Identifier (DOI)

  • 10.1016/s0002-9149(99)00065-x


  • eng

Conference Location

  • United States