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Modified Technique to Create Diabolo Stent Configuration.

Osamah Aldoss¹, Abhay Divekar²

¹Stead Family Department of Pediatrics, Division of Pediatric Cardiology, University of Iowa Children's Hospital, 200 Hawkins Dr., Iowa City, IA, 52242, USA. Osamah-aldoss@uiowa.edu.

Pediatric Cardiology

|January 8, 2016

Summary

A novel technique using a gooseneck snare creates a diabolo stent configuration for controlled defects. This method is simple, reproducible, and effective for complex cardiac conditions like Fontan physiology.

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Area of Science:

Interventional Cardiology
Medical Device Technology

Background:

The diabolo stent configuration is crucial for controlled defects in various cardiovascular conditions.
Existing techniques for creating this configuration can be complex.

Purpose of the Study:

To describe a novel, simple, and reproducible technique for creating a diabolo stent configuration using a gooseneck snare.
To evaluate the efficacy and safety of this technique in patients requiring controlled atrial communication.

Main Methods:

A balloon-expandable stent was mounted on a 5-mm gooseneck snare and angioplasty catheter.
The snare deployment created a central waist of 5 mm, forming the diabolo shape.
Six configurations were implanted in four patients with failing Fontan physiology.

Keywords:

Diabolo stent Failing fontan Fenestration Snare

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Main Results:

The gooseneck snare technique successfully created a consistent diabolo stent configuration with a 5-mm central waist in all patients.
Five fenestrations and one atrial septal restriction relief were achieved without complications.
The technique proved to be simple, reproducible, and easy to learn.

Conclusions:

The gooseneck snare is an effective, readily available tool for creating diabolo stent configurations.
This technique offers a safe and reliable alternative for procedures requiring controlled defects, particularly in Fontan patients.