Abstract:Objective:To evaluate the effect of percutaneous transluminal angioplasty(PTA) with microballoon for patients with infrapopliteal artery occlusive disease.
Methods :The clinical materials of 32 cases(37 limbs) with infrapopliteal artery occlusive disease treated by PTA with microballoon were retrospectively studied.According to Fontaine staging, 22 limbs(59.5%) were in stage Ⅲ and 15 limbs(40.5%) in stage Ⅳ.Preoperative ABI was 0.22±0.20.
Results:The technical success rate was of 94.6% (35 limbs).Of these limbs,rest pain disappeared in 21 limbs(66.0%) and clinical symptoms were relieved obviously in 12 limbs(34.3%).Of the preoperative foot ulcers in 9 limbs,3 healed.Of the 6 limbs with foot or toe gangrene,1 underwent below-knee amputation and 2 received partial foot amputation.The postoperative ABI was 0.73±0.21.All the 35 limbs with successful operation were followed up with an average period of 13.6 (1~29) months. During follow-up, 2 limbs had recurrence of rest pain at 6m and 14m after operation, respectively; and the symptoms were relieved after a second PTA. The signs and symtpoms in the other 33 limbs did not increase or recur.
Conclusions:PTA with microballoon is a feasible technique in the treatment of infrapopliteal artery occlusive disease,especially in poor risk patients.Long-term results need to be further studied.