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Transcatheter occlusion of patent ductus arteriosus using tornado platinum coils
Kenji Suda1, Masahiko Matsumura
1Division of Pediatric Cardiology, Department of Pediatrics, Tenri Hospital, Tenri City, Japan. kensuda@kcn.ne.jp
Insights
Tornado platinum coils can successfully occlude small patent ductus arteriosus (PDA) in children. This coil occlusion method is feasible for PDAs up to 2.8 mm, showing promise for future treatment.
Area of Science:
- Cardiovascular Medicine
- Pediatric Cardiology
- Interventional Radiology
Background:
- Patent ductus arteriosus (PDA) is a common congenital heart defect.
- Existing PDA occlusion methods have limitations.
- A novel coil compatible with magnetic fields was investigated.
Purpose of the Study:
- To develop and evaluate a method for occluding PDA using tornado platinum coils.
- To assess the feasibility and initial efficacy of this new technique.
Main Methods:
- Twelve pediatric patients with PDA were enrolled.
- A retrievable system with a multipurpose catheter and bioptome was used.
- Tornado platinum coils were deployed in the aortic ampulla and pulmonary artery.
Main Results:
- Successful occlusion was achieved in 11 of 12 patients with PDA size <= 2.8 mm.
- Echocardiograms confirmed complete occlusion in 10 patients up to 6 months post-procedure.
- Occlusion failed in one patient with a larger PDA (3.6 mm) due to coil instability.
Conclusions:
- Tornado platinum coils are feasible for occluding small PDAs (<= 2.8 mm).
- Further research is needed to confirm the safety and efficacy of this method.
- Coil instability may limit application in larger PDAs.
Background:
The purpose of the present study was to develop a method to occlude a patent ductus arteriosus (PDA) using a tornado platinum coil, which is compatible with magnetic fields.
Methods:
Twelve patients with a PDA (5 boys and 7 girls; 0.6 to 7 yrs; 6.5 to 22.1 kg) were enrolled. The minimum size of the PDA ranged from 0.2 mm to 3.6 mm. Either the anterograde or retrograde method was applied using a retrievable system that consisted of a 5-Fr multipurpose catheter and a 3-Fr bioptome. Three to 3.5 loops of the larger end of a tornado platinum coil were placed in the aortic ampulla and the remaining 0.5-1.0 loop of the smaller end of the coil was placed in the main pulmonary artery.
Results:
In 11 patients with minimum size of PDA
Conclusions:
It is feasible to occlude a relatively small PDA (