The purpose of the study was to evaluate the efficacy and safety of the ¿percutaneous direct puncture of occluded superficial femoral artery (sfa)¿ technique for recanalization of sfa, after failure of antegraderecanalization in patients with limited access to retrograde popliteal and crural arteries.
Between april 2014 and november 2017, 10 patients with cli (critical limb ischemia) underwent endovascular recanalization with direct percutaneous puncture of occluded sfa after failed antegrade recanalization.
All patients had a long segment (39,9 ± 2.
8 cm) occluded sfa without stump causing failed antegrade recanalization with a cannulated guidewire in the sfa origin.
After unsuccessful attempts with the antegrade approach, the retrograde direct puncture technique of the occluded sfa was performed and followed by antegrade recanalization.
Balloon angioplasty was performed over the guidewire distal to the peripheral occluded segments with 5¿6 mm diameter balloons (medtronic, pacific¿ xtreme, usa)].
Stents were placed (ev3 inc.
, plymouth, mn, usa) if residual stenosis was n30% or flow-limiting dissection was seen on the control angiography images.
In the same session, btk arteries were recanalized with balloons (size range 2¿2.
5 mm).
In 1 patient applied with balloon angioplasty at the occluded proximal segment of sfa, there was no flow in the deep femoral artery on the post-procedural control angiography, and this patient had no complaints after the procedure and there was no recurrent occlusion occurred during the follow-up period.
In addition to the sfa recanalization, the procedure was also applied to the external iliac artery and cfa in 1 patient, to the popliteal artery in 6 patients and to btk arteries in 10 patients to provide direct blood flow for the foot.
Balloon angioplasty was performed all cases and stent placement for sfa occlusion was applied to 4 patients.
Of the total 10 patients, 3 (30%) underwent minor amputation afterrevascularization, because of tissue loss in the toes.
The mean follow-up period was 25,1 ± 9,6 months.
According to the kaplan-meier analysis, the amputation-free survival rate was 60% at 12 and 24 months and the limb salvage rate was 90% at 12 and 24 months the mean procedure time was 101 ± 17,8 min.
Recurrent occlusion occurred in 3 patients at 4, 5 and 6 months from the initial procedure and all were successfully treated with conventional antegrade approach.
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