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下肢止血带使用时间对组织代谢及血流动力学影响的研究 被引量:1

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摘要 目的:探讨下肢使用气压止血带的不同时间对组织代谢和血流动力学的影响。方法选择60例下肢使用气压止血带时间较长的手术患者,每次充气60 min后放气10 min,于术前、每次止血带放气后10 min监测患者血压、心率,检测凝血酶原时间(PT)、凝血酶时间(TT)、纤维蛋白原(FIB),统计分析患者使用止血带1 h、2 h、3 h、>3 h的局部表现和感觉情况。结果使用止血带>3 h有21.1%的患者出现止血带局部不适;使用止血带1 h放气10 min后,平均动脉压(MAP)、心率、PT、TT和FIB与术前基础值比较差异无统计学意义(P>0.05);使用止血带2 h放气10 min后,MAP、心率与术前比较差异有统计学意义(P<0.05),PT、TT和 FIB与术前比较差异无统计学意义;使用止血带3 h,放气10 min后,心率与术前比较差异有统计学意义(P<0.01),MAP、PT和FIB与术前比较差异有统计学意义(P<0.05);使用止血带>3 h放气10 min后,MAP、心率、FIB、PT、TT与术前比较差异有统计学意义(P<0.01)。结论使用止血带时间越长引起肢体缺血而导致的血流动力学和代谢的改变越明显。
作者 盛希
出处 《医学信息(医学与计算机应用)》 2014年第8期65-66,共2页 Medical Information
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