Abstract
Purpose: To assess the success of percutaneous transluminal angioplasty (PTA) in treating peripheral bypass stenoses.
Methods: Patients who received a femoropopliteal or femorocrural bypass graft for limb ischemia were included in a duplex surveillance program. If duplex ultrasound revealed a short (<2 cm) severe (peak systolic velocity ratio ≥4.5) stenosis, patients were scheduled for arteriography and PTA. Fifty-eight peripheral bypass stenoses in 39 grafts in 37 patients were treated with PTA. The cumulative primary patency of treated stenoses was calculated.
Results: During the first year after PTA 31 (53%) treated lesions remained patent, 15 (26%) lesions restenosed at a median interval of 5.0 (range 1–12) months and 4 (7%) bypasses occluded. The cumulative primary patency of 58 treated graft stenoses at 1 year was 60% [95% confidence interval (CI) 46%–74%] and 55% (95% CI 41%–70%) at 2 years. Graft body stenoses showed a better 2-year cumulative primary patency (86%; 95% CI 68%-100%) compared with juxta-anastomotic lesions (45%; 95% CI 29%–62%; p<0.05).
Conclusion: PTA is justifiable as the initial treatment of peripheral bypass stenoses. Nevertheless, the restenosis rate is rather high, especially in juxta-anastomotic lesions. Continuation of duplex surveillance after PTA and timely reintervention is recommended.
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Hoksbergen, A.W.J., Legemate, D.A., Reekers, J.A. et al. Percutaneous transluminal angioplasty of peripheral bypass stenoses. Cardiovasc Intervent Radiol 22, 282–286 (1999). https://doi.org/10.1007/s002709900389
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DOI: https://doi.org/10.1007/s002709900389