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Evaluation of the pullback atherectomy catheter in the treatment of lower limb vascular disease
S Grubnic1, S D Heenan, T M Buckenham
1Department of Diagnostic Radiology, St. George's Hospital, London SW17 0QT, United Kingdom.
Insights
The Pullback Atherectomy Catheter (PAC) shows high technical success for lower limb vascular disease. However, it often requires additional balloon angioplasty for optimal results.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Medical Devices
Background:
- Lower limb vascular disease, particularly femoropopliteal atherosclerosis, poses significant clinical challenges.
- Atherectomy devices aim to improve arterial lumen diameter and blood flow.
- The Pullback Atherectomy Catheter (PAC) is a tool for endovascular intervention.
Purpose of the Study:
- To prospectively assess the technical success and 1-year patency of the Pullback Atherectomy Catheter (PAC).
- To evaluate the PAC's efficacy in treating femoropopliteal atherosclerotic disease, graft neointimal hyperplasia, and dissection flaps.
Main Methods:
- Thirty-nine PAC procedures were performed in 34 patients with lower limb vascular disease.
- Follow-up included ankle-brachial indices and arteriography at specified intervals.
- Assessment focused on technical success, lumen improvement, and complications.
Main Results:
- Technical success was achieved in 97.4% of procedures (38 out of 39).
- Mean stenosis decreased significantly, but 69.2% of cases needed adjunctive balloon angioplasty.
- Complications occurred in 15.4% of procedures, with a third requiring surgical intervention.
Conclusions:
- The PAC is user-friendly and relatively safe for treating lower limb vascular disease.
- It necessitates additional percutaneous transluminal angioplasty (PTA) to achieve a satisfactory arterial lumen.
- The PAC demonstrated effectiveness in treating graft neointimal hyperplasia and intimal flaps post-PTA.
Purpose:
To evaluate prospectively the Pullback Atherectomy Catheter (PAC) in terms of its technical success and 1-year patency in the treatment of lower limb vascular disease.M ETHODS: Thirty-nine PAC procedures were performed in 34 patients to treat atherosclerotic disease (occlusive in 51%) of the femoropopliteal arteries, including four cases of graft neointimal hyperplasia and three dissection flaps. Follow-up was by ankle-brachial indices at 24 hr and 1 month, and arteriography at 6 and 12 months.
Results:
Technical success was achieved in 38 of 39 procedures (97.4%). There was a reduction in mean stenosis from 89.4% to 12.1%, but 69.2% of procedures required additional balloon dilatation to achieve an adequate arterial lumen. Complications followed 15.4% of procedures, a third of which required surgery.
Conclusion:
The PAC is an easy and relatively safe catheter to use, but does not provide a satisfactory arterial lumen without additional percutaneous transluminal angioplasty (PTA). It proved to be effective, however, in the treatment of graft neointimal hyperplasia and in the resection of obstructive intimal flaps following PTA.
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