...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Clinical Ultrasound: JCU >Hemodynamic changes in the cephalic vein of patients with hemodialysis arteriovenous fistula.
【24h】

Hemodynamic changes in the cephalic vein of patients with hemodialysis arteriovenous fistula.

机译：血液透析动静脉瘘患者头静脉血流动力学变化。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

PURPOSE: To assess via Doppler sonography the hemodynamic changes in the cephalic vein after creation of an arteriovenous fistula, and to compare radiocephalic and brachiocephalic fistulas. METHODS: Thirty-three hemodialysis patients and 54 controls were enrolled in the study. The cephalic vein was examined with a 7.5-MHz linear-array transducer. Doppler waveform parameters (resistance index, pulsatility index), time-averaged maximum flow velocity (TAV), peak systolic velocity (PSV), end-diastolic velocity (EDV), and the cross-sectional area of the vessel (A) were measured. Cephalic vein flow volume (CVFV) was calculated as TAV x A. RESULTS: CVFV, PSV, EDV, A, RI, and PI were 45.5, 7.2, 6.7, 7.7, 1.2, and 1.32 times higher, respectively, in the cephalic vein of hemodialysis patients compared with controls. Both CVFV and A were higher in brachiocephalic patients compared with radiocephalic patients (1,983 +/- 1,199 versus 870 +/- 322 ml/min [p < 0.05] and 50.3 +/- 38.9 versus 21.0 +/- 7.8 mm(2) [p < 0.05], respectively). CONCLUSION: The increase in cross-sectional area and flow volume of the cephalic vein is larger in patients with brachiocephalic fistulas than in those with radiocephalic fistulas; however, flow velocities and waveform parameters are not different.
机译：目的：通过多普勒超声检查来评估动静脉瘘形成后头静脉的血流动力学变化，并比较放射性头状和头颅性瘘。方法：33名血液透析患者和54名对照组参加了研究。用7.5-MHz线性阵列换能器检查头静脉。测量多普勒波形参数（电阻指数，搏动指数），时均最大流速（TAV），峰值收缩速度（PSV），舒张末期速度（EDV）和血管横截面积（A） 。结果为：头静脉的CVFV，PSV，EDV，A，RI和PI分别为头静脉的45.5、7.2、6.7、7.7、1.2和1.32倍。血液透析患者与对照组相比。头颅型患者的CVFV和A均高于放射头型患者（1,983 +/- 1,199 vs 870 +/- 322 ml / min [p <0.05]和50.3 +/- 38.9 vs 21.0 +/- 7.8 mm [2] p <0.05]。结论：头颅性瘘管患者的横断面积和头静脉流量的增加大于放射性头颅性瘘管的患者。但是，流速和波形参数没有区别。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号