利多卡因乳膏联合水合氯醛在先天性心脏病合并重度肺动脉高压患儿动静脉穿刺中的应用
Chinese Journal of Critical Care Medicine (Electronic Edition)（2021）
Abstract
肺动脉高压是先天性心脏病常见且严重的并发症之一,当肺动脉收缩压＞ 70 mmHg(1 mmHg=0.133 kPa)时称为重度肺动脉高压,此时患儿易出现肺动脉高压危象(pulmonary hypertensive crisis,PHC)[1].PHC是指肺动脉压达到或超过体循环压力导致严重的低血压及低氧血症,其病情凶险,病死率高达50％以上[2].临床工作中发现,合并重度肺动脉高压的先天性心脏病患儿进行动静脉穿刺时,长时间哭闹、挣扎会反射性刺激肺血管收缩,诱发PHC[3].
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