From June, 1987 through June, 1994, 126 cases of injuries of major arteries of the extremities were treated, in which Nationedmade Teflon artificial vascular prosthesis was used to repair in 20 cases. Eighteen of the twenty cases were operated immediately after initial injury and the other two had secondary operation. The sites of the original injuries were as follows: the external iliac artery in 1, femoral artery in 15, popliteal artery in 2 and the brachial artery in 2. The length of the defect of the artery was measured from 3 to 12cm. In 2 of 20 cases, the artificial vascular prosthesis was used because of the failurs of primary repair from autogenous saphaneous vein graft. The shortterm patency rate was 100 per cent and the longterm patency rate was 95 per cent. The diagnosis of vascular injury, the properties of the artificial vascular prosthesis and the points important in operation were discussed.
Objective To explore the treatment of traumaticsubclavian artery. Methods From July 1990 to January 2006, 12 cases of traumatic subclavian artery were treated byusing of combined incision of superior-inferior clavian. All patients were male,aging 18-36 years(mean 22.6 years). The locations were section 1 of subclavianartery in 1 case, section 2 in 4 cases and section 3 in 7 cases. All patients had incomplete rupture and defect. Time from injury to operation was 3 hours to 1.5 months. The methods of vascular repair included primary repair, end-to-end anastomosis and artificial vascular prosthesis grafts. Results There was no death. Extremities survived in all cases and got good function in 10cases.All patients were followed up 2 months to 12 years (mean 5 yeras and 2 months). The pulse of radial artery restored to normal in 10 cases and did not be felt in 2 cases. The function of extremities restored to normal in 2 cases withpartial injury of brachial plexus nerve and did not improve in 2 cases with complete injury ofbrachial plexus nerve. 〖WTHZ〗Conclusion The exposure of subclavian artery is difficult because of its particular anatomy region. The repair and reconstruction of subclavian artery should be selected according to the type of vascular injuries. Combined superiorinferior clavian approach can satisfy the exposure and repair for the subclavian artery.
The use of Gore-tex artificial blood vessel in staged operation of arterialization was adopted in 19 cases having severe isehemic disorders of the lower extremities. Following 3 to 29 months after operation. with an average follow-up of 16.2 months. 16 cases had obtained better results, one cases had amputation because of thrombosis of the femoral artery and another one had developed thrombosis in the deep vein of the leg. It was considered that the application of short- sized Gore-tex artificial blood vessel in staged operation of arterialization to treat severe ischemic disorders of the lower extremities could provide satisfactory clinical resulst.
Objective
To evaluate the effect of Fogarty balloon catheter embolectomy on arteriovenous graft thrombosis in hemodialysis patients.
Methods
We retrospectively analyzed the clinical data of 11 patients who underwent maintaining hemodialysis and arteriovenous graft thrombosis through Fogarty balloon catheter embolectomy between March 2010 and November 2014. The thrombosed graft was incised, and a 4 or 6 French catheter was placed in the venous and arterial limbs of the graft respectively. The Fogarty balloon was passed beyond the thrombus and pulled out after saline was infused into the balloon, and the thrombus was taken out. The procedure was considered unsuccessful if the blood flow was not re-established or if the graft re-thrombosed within hours.
Results
The treatment was successfully performed in all the patients. Of the 11 patients, 3 received balloon dilation due to stenosis of venous anastomosis, and 2 received angioplasty due to underlying arterial anastomosis lesion. After corresponding measures were taken, the thrombus of all the 11 patients were taken out, and blood flow was recovered. Two to seven days after surgery, low molecular weight heparin was used for anti-coagulation. The blood flow of all arteriovenous grafts reached over 250 mL/min. All the patients were followed up for 4 to 30 months. During the follow-up, the arteriovenous graft remained functional in 5 patients; 4 patients had re-thrombosis on day 2, 3, 25, and 71 after surgery respectively; one changed to undergo peritoneal dialysis due to rupture and infection of the graft, and one patient was transferred to another hospital in another area and was not followed up any longer. The therapy was successful in 81.8% of this group of patients.
Conclusion
Fogarty balloon catheter embolectomy is effective in restoring patency of thrombosed arteriovenous graft in hemodialysis patients, and more studies are needed.
Bacterial cellulose (BC) is a high-purity nanometer cellulose secreted by some bacteria. Compared with plant cellulose, it possesses an array of unique properties, including high crystallinity, high water content, good biocompatibility, high mechanical strength and an ultra-fine fiber network. BC is prosperous as a new type of biomedical material, which has medical applications such as wound dressing, artificial skin, artificial blood vessels and tissue engineering scaffolds. There are, however, some problems to be solved on the large-scale application of BC, such as the high cost, low yield, and poor mechanical stability and so on.
Objective To evaluate repair and reconstructionof the femoral pseudoaneurysm caused by drug injection. Methods From May 2000 to May 2005, 15 cases of femoral pseudoaneurysm caused by drug injection underwent operation treatment. All patients were male, aging 20-36 years. The disease course was 18-52 days(mean 35 days) and the course of druginjection was 3-17 months. The locations were the left side in 5 cases and theright side in 10 cases. After having been bandaged with pressure and supportedwith nutrition, they had been all operated. One case received fistula repair, and 14 cases received vascular grafting with ePTFE man-made blood vessel. Results The wounds healed by the first intention in 14 cases. All limbs survived. The complexion, temperature and response of involved leg were in gear. The postoperative color ultrasound Doppler detection showed that all the vascular grafts were of patency. The function of the involved limbs restored to normal. Conclusion Complete debridement, vascular reconstruction and better microsurgery skill were the key factors of treating successfullythe femoral pseudoaneurysm caused by drug injection.
OBJECTIVE To compare the permeability and incidence rate of complication of arteriovenous internal fistula made by autogenous, homologous, and artificial Teflon blood vessels. METHODS Two hundred and forty one cases with arteriovenous internal fistula made by autogenous, homologous, and artificial Teflon blood vessels were followed up to compare the permeability and incidence rate of complication at 6 months, 1 year, 3 years, and 5 years. RESULTS The incidence rate of complication of autogenous blood vessels was lowest, it had no statistical differences compared with arteriovenous internal fistula made by homologous blood vessels. The permeability of arteriovenous internal fistula made by homologous blood vessels was highest, and it had no statistical differences compared with autogenous blood vessels. The permeability of arteriovenous internal fistula made by artificial Teflon blood vessels was lowest, but the incidence rate of complication was highest, and it had significantly statistical differences compared with arteriovenous internal fistula made by autogenous blood vessels (P lt; 0.01). CONCLUSION Arteriovenous internal fistulas made by autogenous and homologous blood vessels have high permeability and low incidence rate of complication, they are superior to the arteriovenous internal fistula made by artificial Teflon blood vessels.
