Causes of hemoglobinuria after AngioJet mechanical thrombectomy / 中国介入影像与治疗学

Objective To investigate the causes and factors of hemoglobinuria in patients with thrombosis after AngioJet mechanical thrombectomy.Methods The clinical data of 16 patients with thrombosis treated by AngioJet thrombectomy system were retrospectively analyzed.Nine patients with hemoglobinuria during the procedure were included in group A,while 7 patients without hemoglobinuria in group B.The type of surgical procedure,time of intraoperative aspiration and the thrombus volume were compared between both groups.Results Nine (9/16,56.23 ％) of 16 patients were found hemoglobinuria during and after AngioJet mechanical thrombectomy.There were no statistically significant differences in surgical approaches (x2 =1.667,P=0.197),the time of intraoperative aspiration ([320.11±108.80]s vs [265.29±31.46]s,t=0.741,P=0.457),the thrombus volume (x2=0.442,P=0.506) between both groups.No renal function failure were noted directly relating to the use of the AngioJet thrombectomy device.Condusion There are many factors influenced the occurrence of hemoglobinuria in the patients after AngioJet thrombectomy.It can be reduced by using reasonable type of intraoperative aspiration,controled time of aspiration and active perioperative symptomatic treatment.

Multiple interventional models combined via anterior tibial veins in treatment of acute deep venous thrombosis / 中国介入影像与治疗学

Objective To explore the efficacy of multiple interventional models combined through anterior tibial veins approach in treatment of acute deep venous thrombosis (DVT).Methods The clinical data and the imaging materials of 10 patients with acute DVT were analyzed retrospectively,and the interventional treatment strategies were discussed.Results The percutaneous mechanical thrombectomy (PMT) was performed after a temporary inferior vena cava filter implanted in all patients,and thrombus clearance rate of grade Ⅲ was obtained in 7 patients while 3 patients reached grade Ⅱ criteria.There were 7 patients underwent angioplasty,then the inferior vena cava filter was retrieved during the same procedure in 5 patients while 4 patients in the second stage and 1 patient rejected to retrieve the filter.All swelling limbs alleviated significantly after those procedures.There was no critical complications occured.The total hospital stay ranged from 4 to 7 days,with a mean time of (6.00±0.94) days.All patients were followed up with a mean time of (3.60± 1.84) months (ranged from 1 to 6 months).No thrombus recurrences of the previously affected vessels were reported.Conclusion The multiple interventional models combined via anterior tibial veins for acute DVT is simple,safe and effective,combined with mechanical thrombectomy device can reduce thrombus burden quickly,and combined with angioplasty can consolidate the therapeutic effect,all those methods combined can shorten the overall hospitalization time.

Progresses in treatment of autogenous arteriovenous fistula dysfunction in hemodialysis patients / 中国介入影像与治疗学

Autogenous arteriovenous fistula is the most commonly used vascular access in maintenance hemodialysis patients.However,thrombosis,stenosis and other factors are the most important causes of arteriovenous fistula dysfunction during hemodialysis.How to keep the patency of autogenous arteriovenous fistula is an urgent problem to be solved.Progresses in treatment of arteriovenous fistula dysfunction were reviewed in this article.

Analysis of expression of von Willebrand factor, endothelin-1, vascular endothelial growth factor in Budd-Chiari syndrome with membranous obstruction / 中华放射学杂志

Objective To investigate whether the injured vascular endothelial plays an important role in the membranous formation of the inferior vena cava (IVC). Methods There were 40 cases of membranous obstruction of inferior vena cava (MOVC) in the experimental group and 40 arrhythmic inpatients in the control group from affiliated hospital .There were 23 males and 17 females in experimental group while 21 males and 19 females in control group, and the age were (41.8±8.1) yrs and (43.2±7.6) yrs respectively. All of them had no anti-coagulation (clotting) drug history and smoking history, no hypertension, no pulmonary artery hypertension, no coronary heart disease, no valvular disease, no myocardial disease, no blood disease, no diabetes, no connective tissue disease and malignancy, and liver and renal function must be normal. And then the serum concentrations of von Willebrand factor(vWF), endothelin-1(ET-1), vascular endothelial growth factor(VEGF) were defined by enzyme-linked immunosorbent assay (ELISA). The results were analyzed with independent sample t-test. Results In MOVC patients, the serum concentrations of vWF, ET-1 and VEGF[ (37.8±6.6) μg/L, (31.9±6.0) ng/L, (20.84±5.78) μg/L] were higher than those in the control group[ (3.3±1.3) μg/L, (5.3±1.8) ng/L, (4.2±1.2) μg/L. t=32.65,26.70,17.85,P＜0.01, respectively]. ConclusionsThe injury of vascular endothelium is related to the formation of membrane in the IVC.

Acupuncture Treatment for Piriformis Syndrome / 针灸推拿医学（英文版）

Fourty-five Cases of piriformis syndrome were treated by acupuncturing Huantiao(GB 30),Yanglingquan (GB 34) and Kuanlun (BL 60). After 20 treatments,36 individuals were well cured and 9 were effective.