人工血管移植动静脉瘘术后超声检测价值

目的 探讨彩色多普勒超声对人工血管移植动静脉瘘及其并发症的检测价值.方法 对18例人工血管移植动静脉瘘术后4～6周的患者,应用彩色多普勒超声测量动脉侧吻合口和移植人工血管动脉端内径、峰值流速和血流量,同时对上肢出现不适症状患者进行超声检测.结果 术后4～6周彩色多普勒超声显示吻合口和移植人工血管血流充盈良好,动脉侧吻合口内径、峰值流速和血流量分别为(3.61±0.68)mm、(298.56±93.42)cm/s、(583.62±216.77) ml/min;人工血管动脉端内径、峰值流速和血流量分别为(4.47±0.61)mm、(219.37±68.42)cm/s、(325.23±117.12)ml/min.7例患者手术侧上肢出现不适症状,超声检查发现1例血清肿;3例移植血管血栓;1例假性动脉瘤;2例单纯性皮下组织水肿.结论 超声对人工血管移植动静脉瘘术后人工血管及其并发症的检测有重要的临床应用价值.

Monitoring of ultrasonography in artificial vascular graft for arteriovenous fistula

Objective To evaluate the monitoring of ultrasonography in artificial vascular graft for arteriovenous fistula and its complications in patients with chronic renal failure. Methods Eighteen cases of artificial vascular graft arteriovenous fistula after four to six weeks were enrolled. The diameter, the peak velocity and blood flow were examined in arterial fistula. And the artificial vascular diameter, the peak velocity and blood flow of artificial vessels next to artery were all examined and analyzed. And the patients with symptoms in the upper extremity were tested by ultrasound. Results Intravascular blood showed good filling in fistula and artificial blood vessels in four to six weeks after artificial vascular graft for arteriovenous fistula by color doppler ultrasonography. The arterial fistula diameter, the peak velocity and blood flow were（3.61±0.68）mm and（298.56±93.42）cm/s and （583.62±216.77）ml/min. Artificial vascular diameter in （4.47±0.61）mm, the peak velocity and blood flow were (219.37±68.42)cm/s and (325.23±117.12) ml/min in the artificial blood vessels next to artery. Seven patients with upper extremity discomfort were examined by ultrasonography. One case was serum swollen. Three cases were thrombosis in artificial vessels. One case was pseudoaneurysm. Two cases were edema. Conclusions Ultrasonography plays a significant clinic role in testing artificial vascular graft for arteriovenous fistula and its complications.