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Updated: Jul 7, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

The parallel wire technique for septal defect closure.

Paul T L Chiam¹, Howard A Cohen, Carlos E Ruiz

¹Department of Cardiac and Vascular Interventional Services, Lenox Hill Heart and Vascular Institute of New York, NY, USA.

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions

|March 1, 2008

Summary

A novel "parallel wire" technique simplifies percutaneous closure of atrial septal defects (ASDs), especially complex fenestrated ones. This method enhances device placement success and is applicable to other septal defect closures.

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Area of Science:

Interventional Cardiology
Medical Device Technology

Background:

Percutaneous closure of secundum atrial septal defects (ASDs) is a standard, safe, and effective procedure.
Crossing complex or fenestrated ASDs can be challenging, potentially complicating device deployment.

Observation:

A novel "parallel wire" technique using thin guidewires (0.018 or 0.014 inch) was employed.
This technique allows for maintained access and easy recrossing of the defect if initial device placement is suboptimal.

Findings:

The parallel wire technique facilitates easier and more reliable device placement in ASD closure.
It can also serve as a "body wire" in large ASDs with deficient rims, reducing device prolapse risk.
The method is also applicable to patent foramen ovale and ventricular septal defect closures.

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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

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Implications:

This simple, reproducible technique improves the safety and efficacy of percutaneous septal defect closure.
It offers a readily available solution for challenging cases using standard catheterization laboratory equipment.