Clinical application of covered metal stents in treating central venous occlusion of different branches in hemodialysis patients
10.3760/cma.j.issn.1001-7097.2019.12.002
- VernacularTitle: 覆膜支架治疗血液透析合并中心静脉闭塞的临床应用
- Author:
Nan LI
1
;
Chunyong WEN
;
Jianyong YANG
;
Yonghui HUANG
Author Information
1. Department of Interventional Radiology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
- Publication Type:Clinical Trail
- Keywords:
Renal dialysis;
Catheterization, central venous;
Angioplasty;
Central venous occlusive;
Covered stent
- From:
Chinese Journal of Nephrology
2019;35(12):887-892
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the efficacy of covered stent (CS) in the treatment of central venous occlusive disease (CVOD) of different branches in hemodialysis patients.
Methods:Twenty-five cases of CVOD in the First Affiliated Hospital of Sun Yat-sen University from Oct 2015 to June 2018 were enrolled. All patients underwent percutaneous transluminal angioplasty (PTA)+stent graft (PTS) successfully. The stent grafts of different diameters were implanted according to intraoperative angiography to measure the diameter of normal blood vessels around the diseased vessels. The operation was successful and the follow-up data was complete. According to the different branches of central venous lesions, the patients were divided into three groups: subclavian vein group, brachiocephalic vein group and superior vena cava group. The stent diameter, primary patency and assisted primary patency time were analyzed and compared in the three groups.
Results:The diameters of the subclavian vein group, the brachiocephalic vein group, and the superior vena cava group were (10.29±0.42) mm, (12.29±0.32) mm and 13.00 mm, respectively. There were significant differences in the diameters of the subclavian vein group, the superior vena cava group and the brachiocephalic vein group (both P<0.05). As of the end of follow-up, the primary patency time of the subclavian vein group, the brachiocephalic vein group, and the superior vena cava group was (10.57±2.00) months, (19.40±3.28) months, and (32.75±3.28) months respectively. The primary patency time of the superior vena cava group was significantly longer than the other two groups (P<0.05). There was no significant difference in the primary patency time between the subclavian vein group and the brachiocephalic vein group (P=0.072). The assisted primary patency time of the subclavian vein group, the brachiocephalic vein group and the superior vena cava group was (15.57±3.20) months, (25.14±2.39) months, (39.00±3.03) months. There was a statistically significant difference in the assisted primary patency time between the three groups (P<0.05).
Conclusions:There are differences in vascular patency between postoperative vascular grafts of different diameters in different sites. The larger the diameter of the lumen stent, the longer the stent patency time is. It is important to protect the blood vessels with smaller diameters.
