PURPOSE: To compare long-term outcomes of systematic primary stent placement between Trans-Atlantic Inter-Society Consensus (TASC)-II C/D disease and TASC-II A/B disease. METHODS: Between 1997 and 2009, endovascular treatments with primary stent placement were performed for 533 lesions in 413 consecutive patients with iliac artery occlusive disease. Median follow-up term was 72 months (range, 1-144 months). Lesion severity in this retrospective study was classified according to TASC-II as type A in 134 patients (32%), type B in 154 patients (37%), type C in 64 patients (16%), and type D in 61 patients (15%). Technical success rates, procedure time, complication rates, and cumulative primary patency rates were compared between the complex lesion group (TASC-II type C/D) and the simple lesion group (TASC-II type A/B). Risk factors for in-stent restenosis were also analyzed. RESULTS: Technical success rates in TASC-II C/D and A/B were both 99%. Procedure times for TASC-II type A, B, C, and D lesions were 98 ± 40, 124 ± 50, 152 ± 55, and 183 ± 68 minutes, respectively. Procedure time was significantly longer in TASC-II C/D (167 ± 63 minutes) than in TASC-II A/B (112 ± 47 minutes; P < .001). The complication rate was significantly higher in TASC-II C/D (9%) than in TASC-II A/B (3%; P = .014). Cumulative primary patency rates at 1, 3, 5, and 10 years were 90%, 88%, 83%, and 71% in TASC-II C/D and 95%, 91%, 88%, and 83% in TASC-II A/B, respectively. No significant differences were apparent between groups (P = .17; Kaplan-Meier method, log-rank test). In multivariate analysis, lesion length was an independent risk factor for in-stent restenosis (hazard ratio, 1.12, P = .03; 95% confidence interval, 1.01-1.24). CONCLUSIONS: Primary stent placement for complex iliac artery occlusive disease provides acceptable long-term outcomes, although the procedure takes relatively longer and is associated with a higher frequency of complications than for simple disease.
PURPOSE: To compare long-term outcomes of systematic primary stent placement between Trans-Atlantic Inter-Society Consensus (TASC)-II C/D disease and TASC-II A/B disease. METHODS: Between 1997 and 2009, endovascular treatments with primary stent placement were performed for 533 lesions in 413 consecutive patients with iliac artery occlusive disease. Median follow-up term was 72 months (range, 1-144 months). Lesion severity in this retrospective study was classified according to TASC-II as type A in 134 patients (32%), type B in 154 patients (37%), type C in 64 patients (16%), and type D in 61 patients (15%). Technical success rates, procedure time, complication rates, and cumulative primary patency rates were compared between the complex lesion group (TASC-II type C/D) and the simple lesion group (TASC-II type A/B). Risk factors for in-stent restenosis were also analyzed. RESULTS: Technical success rates in TASC-II C/D and A/B were both 99%. Procedure times for TASC-II type A, B, C, and D lesions were 98 ± 40, 124 ± 50, 152 ± 55, and 183 ± 68 minutes, respectively. Procedure time was significantly longer in TASC-II C/D (167 ± 63 minutes) than in TASC-II A/B (112 ± 47 minutes; P < .001). The complication rate was significantly higher in TASC-II C/D (9%) than in TASC-II A/B (3%; P = .014). Cumulative primary patency rates at 1, 3, 5, and 10 years were 90%, 88%, 83%, and 71% in TASC-II C/D and 95%, 91%, 88%, and 83% in TASC-II A/B, respectively. No significant differences were apparent between groups (P = .17; Kaplan-Meier method, log-rank test). In multivariate analysis, lesion length was an independent risk factor for in-stent restenosis (hazard ratio, 1.12, P = .03; 95% confidence interval, 1.01-1.24). CONCLUSIONS: Primary stent placement for complex iliac artery occlusive disease provides acceptable long-term outcomes, although the procedure takes relatively longer and is associated with a higher frequency of complications than for simple disease.
Authors: Woong Gil Choi; Seung Woon Rha; Cheol Ung Choi; Eung Ju Kim; Dong Joo Oh; Yoon Hyung Cho; Sang Ho Park; Seung Jin Lee; Ae Yong Hur; Young Guk Ko; Sang Min Park; Ki Chang Kim; Joo Han Kim; Min Woong Kim; Sang Min Kim; Jang Ho Bae; Jung Min Bong; Won Yu Kang; Jae Bin Seo; Woo Yong Jung; Jang Hyun Cho; Do Hoi Kim; Ji Hoon Ahn; Soo Hyun Kim; Ji Yong Jang Journal: Trials Date: 2016-06-25 Impact factor: 2.279