Iskandar Henri, Wakim Nicolas, Benard Antoine, Manaud Bertrand, Ruel-Raymond Joelle, Cochard Gyslaine, Huber Chris
Department of Anesthesiology, Clinique Bordeaux-Mérignac, 9 rue Jean-Moulin, 33700 Mérignac, France.
Anesth Analg. 2005 Jul;101(1):279-81, table of contents. doi: 10.1213/01.ANE.0000154188.15821.E9.
In this study we investigated and quantified the effects of interscalene block (ISB) on humeral arterial blood flow (HBF). Eleven patients scheduled for shoulder arthroscopic surgery under ISB were prospectively studied. A Doppler ultrasound of the humeral artery was performed before, and 30 min after, the ISB. The resistance index and the HBF were measured at the level of the midpoint of the upper arm. The median (interquartile range) of resistance index decreased from 0.98 (0.95-1.00) to 0.81 (0.77-0.91) (P < 0.01). The median HBF increased from 32 (18-46) to 88 (59-98) mL/min (P < 0.01). We conclude that ISB enhances arterial blood flow and decreases arterial resistance.
在本研究中，我们调查并量化了肌间沟阻滞（ISB）对肱动脉血流（HBF）的影响。对11例计划在肌间沟阻滞下行肩关节镜手术的患者进行了前瞻性研究。在肌间沟阻滞前及阻滞30分钟后，对肱动脉进行多普勒超声检查。在上臂中点水平测量阻力指数和肱动脉血流。阻力指数的中位数（四分位间距）从0.98（0.95 - 1.00）降至0.81（0.77 - 0.91）（P < 0.01）。肱动脉血流的中位数从32（18 - 46）增加至88（59 - 98）mL/分钟（P < 0.01）。我们得出结论，肌间沟阻滞可增强动脉血流并降低动脉阻力。
