Objective To evaluate the clinical features and curative effect of patients with Takayasu's arteritis.Methods The clinical data of fifty-eight patients,which were divided into different groups according to gender,clinical classifications,disease activity,and so on,were retrospectively analyzed,to compare whether the results of clinical features,laboratory tests or prognosis had significant differences.Results The data suggested the fact that stroke as first manifestation(2/9 vs 0/49,P =0.022) and incidence of hypertension (9/9 vs 28/49,P =0.037),as well as critical hypertension(8/9 vs 18/49,P =0.011) were more common in male patients than in female patients.The active Takayasu's arteritis patients showed that the level of erythrocyte sedimentation rate (ESR),C-reactive protein (CRP),platelet and fibrinogen was elevated,while the level of Albumin/Globulin ratio was decreased.Electrophoresis showed that the elevation of globulin mainly based on globulin α1 and globulin α2 (P ＜ 0.05).The reduction of complement C3 is more common in inactive group than in active group.Conclusion Stroke and hypertension are more common in male Takayasu's arteritis patients than in female patients.The active Takayasu' s arteritis patients showed elevated level of ESR,CRP,platelet and fibrinogen,while the level of Albumin/Globulin ratio was reduced.

Objective To assess surgical strategies and its therapeutic effect on treating tumors invading of the great vessels. Methods 23 patients underwent tumor resection along with reconstruction of great vessels from Jan. 2001 to Dec. 2005 were retrospectively reviewed. Results 19 cases (82.6%) experienced radical resection along with reconstruction of great vessels, 4 cases (17.4%) underwent palliative resections. 20 cases (86.9%) were followed up by various imaging examination methods. 4 cases (17.4%) died perioperatively and 7 cases (30.4%) had complications in perioperative period. Up to Aug. 2005, the postoperative survival times in patients were from 1.5 to 59.0 months. 3 cases (15.0%,3/20) existed more than 48 months, 4 cases (20.0%,4/20) more than 36 months, 6 cases (30.0%,6/20) more than 24 months, 9 cases (45.0%,9/20) more than 12 months and 12 cases(55.0%,11/20)more than 6 months. No complications related to vascular graft occlusion and tumor recurrence next to grafts occurred in these patients. In 2 cases appeared partial thrombosis in grafts in perioperatively. Conclusion Combination of radical resection of tumor and reconstruction of great vessels could extend survival time and improve quality of life in selected patients with tumor invading thoracic and abdominal great vessels.

0.05) between the two groups diluted by 100-fold and 1 000-fold supernatants.When ASMCs were treated at different concentrations of 0 and 2 ?g/L of pertussis toxin(PTX),the cell number migrated from the test and control groups diluted by 10-fold supernatants,they had statistical significance(74?4 vs 34?3,P0.05).Conclusion:CKLF1 has significant chemotactic effects on ASMCs and such a CKLF1-induced chemotaxis could be inhibiteded by PTX at concentration of 10 ?g/L.

Objective To probe the etiology and management of restenosis after artificially grafting bypass for chronic ischemia of the lower extremities. Methods In this study 52 cases suffering from postoperative restenosis and obliteration were compared with 32 cases whose artificial grafts remain patent during the same postoperative follow-up period of 3～62 months.Possible risk factors that lead to restenosis were evaluated.Resuits FIB(4.48±1.68)g/L,CRP(9.5±2.6)mg/L and LDL(4.5±1.7)mmol/L were significantly higher in the restenosis group than FIB(3.50±0.72)g/L,CRP(4.0±3.2)mg/L and LDL(2.8±0.9)mmol/L in the patent group(P＜0.01).There were no significant difference between HDL(1.02±0.32)mmol/L in the restenosis group and HDL(1.12±0.28)mmol/L in the patent group (P＞0.05).Reoperation in these 52 cases found severe intima hyperplasia and secondary thrombosis within anastomosis in 42 cases and the remaining 10 cases were found with artificial vessel primary thrombosis.After reoperation,artificial graft remain patent in 28 cases,limb amputation was performed in 10 cases,the grafted bypass were removed due to infection in 3 cases. Five patients died postoperatively.Conclusion The main reason for restenosis after artificially grafting bypass is intima hyperplasia in vascular anastomosis.Higher levels of FIB,CRP and LDL maybe the major high risk factors that lead to intima hyperplasia and artificial graft obliteration.

Objective To analyse the recurrence rate of patients with Budd-Chiari syndrome (BCS) after radical correction.Method We retrospectively analyzed the clinical characters and follow-up of patients who underwent radical correction and suffered recurrence.Patency rate of inferior vena cava (IVC) and hepatic veins (HVs) were examined.We present the causes of recurrence and clarify risk factors for recurrence by survival analysis.Result Among the 102 patients undergoing radical correction,34 patients suffered from postoperative recurrence,including 32 cases of IVC lesions,21 cases of HVs lesions (19 patients suffered concurrently from IVC and HVs lesions).One patient received reoperation,16 patients received balloon angioplasty of IVC or HVs,3 patients received stent implantation,and 14 patients received conservative treatment.Conclusions The recurrence rate is high after radical correction for BCS.Once the abnormal syndrome recurs,the patients can be managed by radical correction,balloon or stent angioplasty.The main causes of recurrence are thrombosis of IVC,compression of caudate lobe,scar contracture,and the risk factors for recurrence are concurrent hypercoagulation status,too short period of postoperative anticoagulation (less than 6 months).

Objective To investigate the expression of chemokine-like factor 1(CKLF1) in the balloon injured aorta of Sprague-Dawley rats.Methods Balloon expansion induced aorta injury model was established in 80 male Sprague-Dawley rats.Model rats were randomly divided into 8 groups.Rats were sacrificed at the postoperative periods of 12 hours,1 day,3 days,1 week,2 weeks,4 weeks,6 weeks,and 8 weeks respectively.Sham injury operation was applied to 5 rats as control.The ratio of intimal area (IA) and medial area (MA) was calculated to determine the extent of neointimal hyperplasia.Expression of CKLF1 was examined at protein level with immunohistochemistry and at mRNA level with RT-PCR.Software IPP6.0 was used to examine the mean optical density of positive staining.With β-actin expression as an internal control,semi-quantity of CKLF1 expression was calculated by CKLF1/β-actin.Results Visible neointima was noticed at 1 week postoperation.Extend of intimal hyperplasia(IA/MA)was most remarkable at 4 weeks and receded afterwards. Immnohistochemistry study showed that expression of CKLF1 was stronger in the neointima than in the media(P=0.016).The expression was most obvious in the neotima at 1 week postoperation.RT-PCR showed peak expression at 3 days postoperation and declined gradually but still at a higher level than control(P<0.05).The extent of intimal hyperplasia(IA/MA)was positively correlated to the expression of CKLF1(R=0.70,P=0.188).Conclusion The expression of CKLF1 was up regulated in balloon injured rat aorta.The expression was more obvious in the neointima than in the media.CKLF1 may play a role in the development of intimal hyperplasia.

Objective To sum up our preliminary experience on radical surgery for the treatment of Budd Chiari syndrome under genuine direct vision. Method A total of 13 cases were enrolled in this study with age ranging from 17 to 48 years, and history from 3 months to 5 years. There was inferior vena cava (IVC) membranous obstruction in 3 cases, right hepatic venous membrane (HV) in 1 case, IVC membrane with distal thrombosis in 6 cases, long segment of thrombosis of IVC in 2 cases, IVC tumor thrombus extending to right atrium in 1 case of retroperitoneal tumor. Result All lesions were successfully resected. Extracorporeal circulation was used in one case, cell saver was used in 2 cases. No blood transfusion was needed except for one case receiving bank blood transfusion of 2000 ml, and the other one of 400 ml. One patient died of renal failure during perioperative period. Disappearance of the symptoms and sigh after operation was found in all the other cases. Conclusion This new radical surgery gives access to the lesions under clear direct vision facilitating the correction.

Objective To study the mechanism of oxidative stress involved in the pathogenesis and relapse of acute monocytic leukemia (M5 ).Methods We detected reactive oxide species (ROS)levels,conducted plasma analysis obtained from 76 M5 patients at diagnosis and at relapse,and observed the ultrastructure of mitochondria of mononuclear cells in peripheral blood by transmission electron microscope.Results Compared with that in the control group,the average fluorescence intensity of intracellular ROS was significantly increased in M5 groups, especially in the relapse patients (P < 0.05 ).Low total antioxidative capacity (T-AOC)and antioxidant enzyme activity were characteristic of M5 at both diagnosis and relapse. However, lactate dehydrogenase (LDH ), malondialdehyde (MDA)and 8-hydroxy-2’-deoxyguanine (8-OHdG)increased significantly at both diagnosis and relapse (P < 0.05 ).Prominent ultrastructural abnormalities (mitochondrial swelling,outer membrane blebs,and aberrant cristae disorder)were present in patients with primary M5,and they were obviously abnormal in relapsing M5 patients.Conclusion Oxidative stress is the initiating factor of M5.Mitochondria are the main intracellular location for ROS generation.To maintain the dynamic balance between ROS and antioxidant defence may be the critical factor for preventing relapse.

Objective To investigate the clinical features of spontaneous isolated superior mesenteric artery dissection (SISMAD), and to discuss its interventional therapy. Methods The clinical data of 10 patients with SISMAD, who were admitted to authors' hospital to receive interventional treatment during the period from January 2006 to June 2014, were retrospectively analyzed. All the 10 patients were males, aged 44-66 years with a mean of (53±8) years. Clinically, all patients presented with acute-onset abdominal pain or pain around umbilicus, as the effect of conservative treatment was poor, implantation of self-expandable bare stent was carried out. Results Successful implantation of self-expandable bare stent was accomplished in all 10 patients;only one stent was used in 7 patients and 2 stents were used in 3 patients. The blood in the true lumen of superior mesenteric artery (SMA) restored and the residual stenosis extent was less than 15%. The technical success rate was 100%. The abdominal pain was relieved in 8 patients on the operative day after treatment, and in 2 patients the abdominal pain was relieved in 2 days after treatment. All the patients were followed up for 7-71 months (mean of 36 months) and the follow-up rate was 100%. After the treatment patients had no symptoms of abdominal discomfort. Contrast-enhanced CT scan performed at 6, 12 and 24 months after the treatment showed that SMA and stent was patent and no aneurysmal dilatation was observed. Conclusion For the treatment of SISMAD endovascular implantation of self-expandable bare stent is clinically safe and feasible, and its long-term effect is satisfactory.

Objective To evaluate the results of thoracic endovascular aortic repair (TEVAR) for chronic type B aortic dissection.Methods From September 2005 to January 2013,30 patients with chronic type B aortic dissection received TEVAR.All patients were followed for 2-90 months [mean (33 ±25) months].Results All of the procedures finally achieved technical success.However,during TEVAR,there were transient endoleaks in 8 patients including type Ⅰ endoleaks in 3 patients,type Ⅱ endoleaks in 5 patients and persistent endoleaks in 3 patients which are type Ⅳ endoleaks.Type Ⅰ and type Ⅱ endoleaks were successfully managed during the procedures.There was no mortality or major complication during the perioperative period.Three patients died during follow-up:one patient died of carcinoma of the colon and two patients died of the complications of secondary interventions related to aortic dissection.Totally there were seven patients receiving secondary interventions.The Kaplan Meier actuarial survival curve showed a 5-year survival rate of 87.9％ and the 5-year survival rate without secondary intervention was 72.8％.Conclusions Early and midterm results showed that TEVAR was effective in treating chronic type B aortic dissection.