Objective To evaluate the clinical result of arterial reconstruction in critical limb isehemia. Methods Clinical data of 123 cases (137 lower extremities ) of critical limb ischemia ( Fontaine Ⅳ ), 79 males and 44 females, with a mean age of ( 74 ± 9 ) years, undergoing arterial reconstruction, were reviewed. Comorbidities included tobacco use (33. 33% ), coronary artery disease (43.09%), hypertension ( 50. 41% ), cerebral vascular disease ( 29. 27% ), and diabetes mellitus(52. 33% ). Result Perioperative mortality rate was 4. 88%, and 88. 89% cases were followed up with amean time of (18 ± 18) months and the mortality rate was 13.01%. The postoperative pateney rate of1 year, 2 years and 3 years was (81±4)% ,(68±6)% and (61±7)% respectively. Arterial occlusion occurred in 25 cases, 4 cases received reoperation and 9 cases received major amputation. Tissue healing rate was 78. 85% after half a year and 83. 65% after 1 year. The limb salvage rate was (81±4)% ,(71 ±5 )% and (65 ± 6)% after 1 year, 2 years and 3 years respectively. Conclusion Arterial reconstruction for the critical limb ischemia increases the limb salvage rate with satisfactory patency rate and improves the healing of ulcer.

Objective To evaluate imaging findings and treatment experience in central venous stenosis without a history of previous catheterization in hemodialysis patients. Methods Clinical data of 5 haemodialysis cases of central vein stenosis without a previous catheterization history in our hospital from July 2006 to July 2008 were analyzed retrospectively. Results Patients were three women and two men aged 43 to 65 years with mean age(53±8)years and all had arm swelling as the main complaint.The vascular accesses were located at the wrist in all the patients.The mean duration of the vascular accesses from the time of creation was(33.6±35.4)months.Venography showed occlusion in 2 cases and stenosis in 3 cages of central vein including 1 case of stenosis in brachiocephalic vein.1 case of stenosis beth in branchiocephalic vein and subclavian vein,1 case of stenosis in two segments of subclavian vein.The stenosis of branchiocephalic vein was fixed anterior to the tracheal and CT showed the compression of the vein by the aorta.Symptoms were resolved by the treatment of PTA.subclavian vein-contralateral subclavian vein bypass and ligation of the access. Conclusions Central venous stenosis in haemodialysis patients without a history of catheterization may be due to the intimal hyperplasia of the compression site or valve which is accelerated by the high flow of vascular access.Venography is the first choice for the diagnosis and the current management of central venous stenosis is far from being effective for the long term.

Objective To review the experiences of re-operational effect for occluded arterial bypass in lower limbs. Method We analyzed the re-operational effect of 19 patients (20 limbs) with occluded arterial bypass in lower limbs from May 1996 to Fab 2004. A total of 31 operations were performed in these patients. Results The patent rate of simple thrombectomy in 18 cases was only 27.7% (5/18) with a rate of re-obstruction of 72. 3%(13/18). The period of patent outflow of another 13 re-operations with rebuilt of in-flow or out-flow varied at 4 days to 11 months. The patent rate in this group was 61.5% (8/13). The rate of re-obstruction was 38. 5% (5/13). The overall patent rate of re-operation was 41.9% (13/31). The average patent period was 9. 1 months (3-29 m). The operative mortality rate in 19 patients was 5. 3% (1/19). The limb salvage rate of 19 limbs in 18 patients was 73. 7%(14/19). The amputation rate was 25%(5/20). Conclusion The main cause of late re-obstruction of bypass procedure was endothelial proliferation and development of lesions. The effect of rebuilt of in-flow or out-flow was better than thrombectomy only. Duplex follow-up helps to find restenoses and manage the proliferated lesions before a bypass becomes occluded.

Objective To present clinical results of endovascular treatment of total iliac vein occlusions and to discuss the technique details of this treatment. Methods From Feb 2006 to Aug 2010,15 patients with chronic total occlusive lesions of the iliac vein and adjacent vein segments underwent endovascular treatment. Average age was (62 ±7) years (range 35 to 81 years), the male/female ratio was 12: 3. Clinical score of CEAP was grade 3 in 33. 3%, grade 4 in 40%, grade 5 in 13. 3%, and grade 6 in 13.3%. Venography showed left iliac vein was occluded in all 15 patients, common femoral vein was occluded in 14 patients, and superior femoral vein was occluded in 9 patients, however profounder femoral vein was patent in these patients with superior femoral vein being occluded. Results No postoperative major morbidity or mortality was seen. The technique success rate was 93. 3%. Treatment failure was caused in one case for a wrong selection of the femoral vein approach site. The average length of stent was 18. 4 cm.In 12(80. 0% ) stents crossed the inguinal ligament. The average follow-up time was 11.6 ± 2. 4 months.The primary patency rates of the stents at 6 months were 92. 9%. 10 (66. 7% ) patients were asympotomatic, 3(20% )were improved, 1 (6. 7% ) was unchanged, and 1 (6.7%) was worse, compared to before intervention. Conclusions Endovscular recanalization and stent placement is a safe and effective treatment for chronic total occluded iliac veins, with good patency, significant symptom resolution, and minimal morbidity in the short term follow-up.

Objective To summarize the experiences of aneurysmorrhaphy for arteriovenous fistula aneurysms with acute thrombosis in hemodialysis patients.Methods There were 7 cases of arteriovenous fistula with acute thrombosis from Nov 2015 to Feb 2017 at our department of vascular surgery,Longhua Hospital.Results In all cases thrombosis was secondary to proximal stenosis or occlusion.The stenosis and occlusion were corrected with embolectomy and aneurysmorrhaphy.The proximal part of the cephalic vein was translocated to the basilic vein in 1 case,axillary vein in 2 cases;autologous vein graft in 1 case;resection of the occlusion,end-to-end anastomosis in 1 case;autogenous patch in 1 case.No perioperative complications occurred.The operation site was cannulated within one month after operation in all cases.Patients were followed up for 7 months to 23 months,all cases were patent.Conclusions Aneurysmorrhaphy is effective,reliable and safe for arteriovenous fistula aneurysms with acute thrombosis in hemodialysis patients.

Objective To evaluate the clinical outcomes of hemodialysis patients after superficial femoral artery - superficial femoral vein arteriovenous graft (AVG). Methods Hemodialysis patients with mid - thigh superficial femoral artery - superficial femoral vein AVG from August 2015 to March 2018 in department of vascular surgery, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine were enrolled. Their clinical outcomes and complications after operation were analyzed retrospectively. Patency rates were measured by Kaplan - Meier survival curve. Results A total of 18 cases were enrolled. The success rate of the operation was 100％without complication. Follow - up time was (22.00 ± 11.77) months with 100％ follow - up rate. The 6 months -, 12 months -, 24 months - primary patency rates were 83.3％±8.8％, 48.5％±12.1％, 24.2％± 13.5％, respectively; secondly patency rates were 100.0％, 100.0％, 87.5％±11.7％. There were 1 case of seroma, 1 case of puncture site infection, 11 cases of stenosis and 5 cases thrombosis during follow-up, while no heart failure, ischemia or pseudoaneurysm. Conclusion Mid - thigh AVG has low infection rate and high patency rate, so it can be as the first choice for the lower extremity AVG in hemodialysis patients.