Cor Vasa 2002, 43(12):513-517
Peripheral atherectomy using the Redha-cut catheter: our initial experience
- Radiodiagnostické oddělení, Nemocnice Kladno, Česká republika
Aim of study:
To determine the safety, feasibility, and efficacy of peripheral artery atherectomy using the Redha-cut device. Atherectomy removes atherosclerotic plaques; its main purpose is to improve the long-term outcomes of angioplasty.
Methods:
The Redha-cut is a mechanically, not electrically-controlled catheter operating without rotation. The catheter tip features a head with 6 resection blades unfolding as an umbrella by moving a cylindrical cover forward. The cover is moved using a sliding mechanism on the handle. The catheter is advanced along a guidewire beyond the artery stenosis. Once beyond the stenosis, the blades unfold and the catheter is retracted via the artery stenosis. The plaque is excided and the resected material is stored in the catheter. Once the Redha-cut has been retracted behind the stenosis, it should be closed to minimize the risk of distal embolism and artery trauma.
Results:
A total of 10 procedures involving 11 lesions were performed in 9 patients. The stenoses were localized in the femoropopliteal arteries in 10 cases and in the arteria iliaca externa in one case. All procedures were successful, with no occluding intraprocedural and postprocedural complications; particles of the occlusive material were obtained in all cases. Histology of the excised material demonstrated atherosclerotically altered intima without an admixture of media and adventicia. The average significance of stenoses decreased from pre-atherectory 79 ± 15.4% to 15 ± 12.9% post-atherectomy. Subsequent balloon angioplasty was performed in 8 out of the 11 lesions (73%), one patient had stent implantation.
Conclusions:
Atherectomy using the Redha-cut device is a safe and promising method for atherosclerotic plaque removal from peripheral arteries. However, assessment of the long-term results of atherectomy is necessary.
Keywords: Atherectomy; Redha-cut; Peripheral artery disease
Published: November 1, 2002 Show citation