RESUMEN
Objective:To evaluate the safety and effectiveness of neglecting superficial femoral artery (SFA) recanalization for chronic lower extremity arteriosclerosis obliterans (ASO).Methods:Thirty-six cases treated for severe stenosis or occlusion of superficial femoral artery resulted from ASO were randomly divided into 2 groups.Twenty of them were treated by endovascular reconstruction of superficial femoral artery and the other 16 cases were not treated with their superficial femoral artery,but were only treated with the accompanied iliac and/or profunda femoral artery lesion.Results:There was no significant difference between the two groups on mean age,gender,ABI before treatment,accompanied diseases,Rutherford classification and trans-atlantic inter-society consensus (TASC) classification (P ＞ 0.05).One week after operation,the reconstruction group had better marked effect and total effective rate [75.0％ vs.12.5％ (P ＜0.001);90.0％ vs.37.5％ (P =0.001)] and lower no effective rate [10.0％ vs.62.5％ (P =0.001)],There was no significant difference between the two groups on effective rate [15.0％ vs.25.0％ (P =0.675)].The deteriorate cases in both groups were zero,and there was no morbidity of complications and death in both groups during the perioperative period.In the 3-month follow up,the reconstruction group had a better marked effect rate [65.0％ vs.25.0％ (P =0.017)];There was no significant difference between the two groups on the effective rate,no effective rate and total effective rate [20.0％ vs.43.8％ (P=O.124);15.0％ vs.31.3％ (P =0.422);85.0％ vs.68.8％ (P =0.422)].The deteriorate cases and morbidity of complications and death in both groups during the perioperative period were still zero.In the 6-and 12-month follow ups,there were no significant differences between the two groups on marked effect and total effective rate [60.0％ vs.37.5％ (P =0.180),80.0％ vs.87.5％(P=0.672);60.0％ vs.43.8％(P=0.332),85.0％ vs.87.5％(P=1.000)].The deteriorate case was zero in both groups,and there was no morbidity of complications and death in both groups.The limb salvage rate in both groups was 100％ during the whole follow up period.The reconstruction group had a higher cost [(53 367.4 ± 24 518.3) yuan vs.(30 397.5 ± 15 354.4) yuan(P =0.011)].There were 8 cases of SFA restenosis/ reocclusion during the follow up,three of which accepted another endovascular treatment,and the reoperation rate was 15.0％.while in the nonreconstruction group,there was no case that needed another endovascular therapy,and the reoperation rate was zero.Conclusion:Only dealing with accompanied iliac and profunda artery lesion and neglecting superficial femoral artery reconstruction is a safe,effective and inexpensive therapy for chronic lower extremity arteriosclerosis obliterans,and should be the preferred alternative for some patients.
RESUMEN
Objective:To study the clinical effects of endovascular reconstruction versus bypass surgery for TASC Ⅱ( trans-atlantic inter-society consensus Ⅱ) C/D femoropopliteal artery lesion resulted from arteriosclerosis obliterans. Methods:One hundred and three patients(119 limbs) accepted bypass surgery or endovascular therapy for TASCⅡC/D femoropopliteal artery lesion between January 2002 and Decem-ber 2012 at our institution were retrospectively assessed. All the patients were diagnosed with arterioscle-rosis obliterins, and all their Rutherford classifications were from 2 to 5 degrees. Among them there were 71 limbs treated by endovascular reconstruction and the other 48 limbs were treated with bypass surgery. We evaluated the short term clinical effect according to the condition when patients left the hospital, and evaluated the long term clinical effect according to the results of the patients' latest follow-up in 2014. Their clinical data before treatment, complication rates, death rates, hospital stays, short term and long term effects, reoperation rates, 1 to 10 years primary and secondary accumulative patency rates and limb salvage rates were compared. Results:There was no significant difference between the bypass group and the endovascular group on the mean age and ankle brachial index before treatment [(67. 1 ± 7. 1) years (51 to 80 years) vs. (68. 0 ± 9. 4) years (49 to 91 years),P=0. 561;(0. 41 ± 0. 23) vs. (0. 40 ± 0 . 26 ) , P=0 . 928 ] . There were more TASCⅡD patients in the bypass group than those in the endovas-cular group ( P<0 . 001 ) , and the rutherford classification was higher in the endovascular group than that in the bypass group. The difference in the mean follow-up between the bypass group and the endovascular group was not significant[(41. 7 ± 23. 6) months vs. (59. 5 ± 41. 6) months,P =0. 065]. Five peri-operative complication cases occurred in the bypass group, including 2 cases of acute thrombosis,1 case of infection and 2 cases of heart failure, and only 1 complication case occurred in the endovascular group that was heart failure. The complication rate was higher in the bypass group than that in the endovascular group [10. 4% vs. 1. 4%, P=0. 039]. And there was no death in both the groups. Compared with the endovascular group, the bypass group had a longer hospital stays [(13. 2 ± 4. 7) d vs. (6. 5 ± 3. 1) d, P<0. 001],a higher reoperation rate (58. 3% vs. 31. 0%,P =0. 003), a better short term, obvious, and effective rate (25. 0% vs. 9. 9%, P =0. 027),a worse long term deterioration rate (37. 5% vs. 18. 3%,P=0. 019) and higher 1 to 10 years primary and secondary accumulative patency rates( P =0 . 001 , P=0 . 001 ) . There was no significant difference between the two groups on the increase of ankle brachial index[(0. 34 ± 0. 28) vs. (0. 31 ± 0. 23), P=0. 371], and short term and long term total ef-fective rates (89. 6% vs. 84. 5%, P=0. 426;45. 8% vs. 56. 3%, P=0. 260), and limb salvage rate (83. 3% vs. 94. 4%,P =0. 051). Conclusion:Endovascular therapy is a safe, effective and minimally invasive therapy for TASCⅡ C/D femoropopliteal artery lesion resulted from arteriosclerosis obliterans.