Retracted: Blood Flow Velocity in the Middle Cerebral Artery Response to Tourniquet Release
Retracted: Blood Flow Velocity in the Middle Cerebral Artery Response to Tourniquet Release
复制标题
撤回：大脑中动脉的血流速度对止血带释放的反应
DOI：
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发表时间：
1999
影响因子：
1.5
通讯作者：
N. Kato
中科院分区：
文献类型：
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作者：
Y. Fujii;H. Toyooka;E. Ishikawa;N. Kato
本研究旨在检查止血带释放对接受全身麻醉的骨科手术患者大脑中动脉（MCA）血流速度的影响。在30例（阿萨身体状态1或2）接受上肢（U组，n = 15）和下肢（L组，n = 15）矫形手术的患者中，使用经颅多普勒超声测量止血带放气前后的MCA血流速度。术中松开止血带后MCA血流速度增加，U组持续升高2min（P < 0.05），L组持续升高4min（P < 0.05）。L组大脑中动脉血流速度的增加大于U组（P < 0.05）。两组MCA血流速度与止血带放气后PETCO2均呈直线正相关（P < 0.001）。
This study was undertaken to examine the effects of tourniquet release on middle cerebral arterial (MCA) blood flow velocity in patients undergoing general anaesthesia for orthopaedic surgery. In 30 patients (ASA physical status 1 or 2) undergoing orthopaedic procedures on the upper (Group U, n = 15) and lower (Group L, n = 15) extremities, MCA blood flow velocity was measured before and after tourniquet deflation using transcranial Doppler sonography. The MCA blood flow velocity increased after release of the intraoperative tourniquet and remained elevated for two minutes in Group U (P < 0.05) and for four minutes in Group L (P < 0.05). The increase in MCA blood flow velocity was greater in Group L than in Group U (P < 0.05). A positive linear correlation between MCA blood flow velocity and PETCO2 after tourniquet deflation was observed in both groups (P < 0.001).