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  • Title: The influence of the ipsilateral superficial femoral artery on iliac angioplasty.
    Author: Kudo T, Rigberg DA, Reil TD, Chandra FA, Ahn SS.
    Journal: Ann Vasc Surg; 2006 Jul; 20(4):502-11. PubMed ID: 16732446.
    Abstract:
    Our objective was to evaluate the impact of the ipsilateral superficial femoral artery (SFA) on percutaneous transluminal angioplasty (PTA) of the iliac arteries. From 1993 to 2005, 183 iliac lesions (179 stenoses, 4 occlusions; 37 common, 35 external, and 111 both iliac arteries) in 127 patients with disabling claudication [94 (52%)], rest pain [43 (23%)], and ulcer/gangrene [46 (25%)] were treated by PTA. TransAtlantic Inter-Society Consensus (TASC) iliac lesion types were A in 48 limbs (26%), B in 92 (50%), C in 38 (21%), and D in 5 (3%). Stents were placed selectively for primary angioplasty failure [residual stenosis (>30%) or pressure gradient (>5 mm Hg)]. Seventy-seven limbs (42%) had patent SFAs (66 intact/<50% stenosis and 11 previously bypassed, pSFA group), 28 (15%) had stenotic SFAs (50-99%, sSFA group), 51 (28%) had occluded SFAs (oSFA group), and 27 (15%) had concomitant SFA angioplasty (aSFA group). The Society for Vascular Surgery and the International Society for Cardiovascular Surgery reporting standards were followed to define outcomes. There were no perioperative deaths. Total complication rate was 1.1% (2/183, groin hematomas). The mean follow-up was 20 months (range 1-115). One hundred twenty-five limbs (68%) had PTA alone for iliac lesions, and 58 (32%) had iliac stenting (a total of 91 stents). TASC iliac lesion types and the status of the ipsilateral profunda femoris artery were not significantly different among the four groups. Seventeen limbs (9%) had subsequent infrainguinal bypass: three in the pSFA, seven in the oSFA, four in the sSFA, and three in the aSFA groups (p = 0.19). The primary patency rate was significantly decreased in the sSFA group (29% at 3 years, Kaplan-Meier log-rank, p < 0.0001) compared with the other three groups; however, there were no significant differences among the pSFA, oSFA, and aSFA groups (67%, 67%, and 86% at 3 years, respectively; p = 0.92). The continued clinical improvement rates were significantly decreased in the sSFA group (36% at 3 years, p = 0.0043) compared with the other three groups; however, there was no significant difference between the pSFA, oSFA, and aSFA groups (81%, 84%, and 75% at 3 years, respectively; p = 0.088). The assisted primary and secondary patency and limb salvage rates were not significantly different among the four groups (p > 0.40). Stratified analysis in patients with TASC type B/type C, critical limb ischemia, or claudicants revealed similar results. The primary patency and continued clinical improvement were significantly decreased in patients with stenotic SFAs, suggesting that concomitant SFA angioplasty might improve iliac patency after iliac PTA for patients with stenotic SFAs. The presence of an occluded SFA did not adversely affect the outcomes of iliac PTA. During iliac PTA, a stenotic SFA should be considered for revascularization via endovascular means but an occluded SFA can be observed.
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