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Overlay Technique for Transcatheter Left Atrial Appendage Closure
Shuang Li1, Mengyun Zhu1, Yunlan Lu1
1Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
Heart, Lung & Circulation
|April 30, 2015
Summary
The Overlay technique, commonly used in peripheral artery interventions, was successfully adapted for transcatheter left atrial appendage closure. This method facilitated sheath advancement, device navigation, and occluder deployment in a novel cardiac structural procedure.
Area of Science:
- Cardiovascular Interventions
- Medical Device Technology
- Cardiac Surgery
Background:
- The Overlay technique is established for peripheral artery interventions.
- Its application in coronary or cardiac structural procedures is less common.
- Transcatheter left atrial appendage closure is a key procedure for stroke prevention.
Observation:
- This case report details the initial use of the Overlay technique in transcatheter left atrial appendage closure.
- Three distinct overlay applications were employed during the procedure.
- These included facilitating delivery sheath advancement, guiding the prepped delivery system, and enabling device deployment.
Findings:
- The Overlay technique proved effective in each phase of the transcatheter left atrial appendage closure.
- It aided in navigating the delivery sheath into the left atrium.
- It assisted in positioning the occluder and deploying the closure device in real-time.
Implications:
- The Overlay technique shows promise as a valuable tool for transcatheter left atrial appendage closure.
- This adaptation could enhance procedural efficiency and success rates.
- Further investigation is warranted to explore its broader utility in cardiac structural interventions.

