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Initial Experience with the Nit-Occlud ASD-R: Short-Term Results
Mustafa Orhan Bulut1, Ilker Kemal Yucel1, Mehmet Kucuk1
1Department of Pediatric Cardiology, Dr. SiyamiErsek Thoracic and Cardiovascular Surgery Training & Research Hospital, Tıbbiyestreet Nr.13, Üsküdar, Istanbul, Turkey.
Pediatric Cardiology
|June 10, 2016
Summary
The Nit-Occlud ASD-R device safely and effectively closes moderate to large atrial septal defects (ASDs) in patients. This transcatheter approach shows complete occlusion with minimal complications during follow-up.
Area of Science:
- Cardiology
- Medical Devices
- Interventional Procedures
Background:
- Atrial septal defect (ASD) closure is a common interventional procedure.
- Transcatheter closure offers a less invasive alternative to surgical repair.
- New devices are continuously developed to improve safety and efficacy.
Purpose of the Study:
- To evaluate the safety, feasibility, and efficacy of the Nit-Occlud ASD-R (NOASD-R) device for transcatheter closure of secundum ASDs.
- To assess device performance and complication rates in a consecutive patient cohort.
Main Methods:
- Transcatheter closure of ASD using the NOASD-R device was performed in 30 patients between 2014 and 2015.
- Standard left upper pulmonary vein approach was used in most cases; right upper pulmonary vein approach was needed for a subset.
- Device implantation success, size ratios, and procedural complications were recorded.
Main Results:
- Successful implantation was achieved in all 30 patients.
- Complete occlusion was observed in all patients at follow-up.
- One case of device-related erosion occurred post-procedure; no other major complications were noted during a median 10-month follow-up.
Conclusions:
- The NOASD-R device is a feasible and effective option for transcatheter closure of moderate to large secundum ASDs.
- Potential for right atrial roof erosion exists, possibly related to device positioning and disk size.

