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丙泊酚对单肺通气时肺内分流及血栓素和前列环素的影响

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摘要 目的:研究丙泊酚对单肺通气(one-lungventilation,OLV)时肺内分流及血栓素(TXA2)和前列环素(PGI2)的影响。方法:选择20例ASAI~II级开胸手术患者随机分为丙泊酚组(Ⅰ组)和对照组(Ⅱ组),每组10例,麻醉诱导气管插管后I组用丙泊酚4~12mg/(kg·h)静脉持续输注;Ⅱ组用异氟醚1.5%~2%吸入维持麻醉。在麻醉后双肺通气(two-lungventilation,TLV)15min(T1)、OLV30min(T2)、OLV60min(T3)、恢复TLV30min(T4)4个时间点分别抽取动脉血和右心房血,行动脉血气分析检查,测定TXB2和6-Keto-PGF1α含量,并计算肺内分流量(Qs/Qt)。结果:OLV后T2、T3与T1相比两组的Qs/Qt升高(P<0.05),PaO2和SaO2下降(P<0.01);但两组之间比较差异无显著性(P>0.05)。OLV30min两组的TXB2明显增高(P<0.01),OLV60min降至基础水平,恢复TLV后又有所升高(P<0.05);6-Keto-PGF1α在OLV后一直维持较高水平,与基础值比较有统计学意义(P<0.01);两组的TXB2/6-Keto-PGF1α比值逐步下降;两组同时间点比较差异无显著性(P>0.05)。结论:与异氟醚比较,丙泊酚并不明显增加肺内分流,OLV后丙泊酚对TXB2和6-Keto-PGF1α的释放无明显的抑制作用。
出处 《实用医学杂志》 CAS 2005年第16期1782-1784,共3页 The Journal of Practical Medicine
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参考文献6

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