复苏后心功能不全与炎症因子关系的实验研究

目的:观察犬心跳骤停复苏后血流动力学和细胞因子的变化及其关系。方法:体外电击诱发犬室颤,3min后复苏,12只犬随机分为2组,常规治疗组(CPR组)和正常对照组,每组6只,采用Swan-Ganz漂浮导管监测复苏前和复苏后6h的心输出量(CO)和肺动脉楔压(PAWP),同时抽血检测血清肿瘤坏死因子-α(TNF-α),白介素-6(IL-6)和白介素-10(IL-10)水平(放免法)。结果:两组各血流动力学指标在心跳骤停前差异无统计学意义,CPR组的MAP在复苏成功即时高于正常对照组,随后开始下降,在复苏后4、6h低于正常对照组。CPR组的PAWP从心跳骤停前的(5.0±1.26)mmHg一直上升,到复苏后达高峰(28.83±4.79)mmHg,各观察点均高于正常对照组,CO在复苏成功后随时间延长而下降,6h降至最低,复苏后各观察点均低于正常对照组和电击前。TNF-α、IL-6浓度在复苏后即时和2h开始出现明显的升高,并随时间的延长而增高,与本组电击前及同时间的正常对照组比较差异有统计学意义。在整个实验过程均未能检测到IL-10的浓度。细胞因子TNF-α和IL-6与CO之间呈负相关。结论:电击诱发室颤犬复苏成功后存...

Relationships between cytokines and myocardial dysfunction after cardiopulmonary resuscitation in dogs

Objective To investigate the relationships between cytokines and myocardial dysfunction after cardiopulmonary resuscitation in dogs. Methods Ventricular fibrillation (VF) was induced by the external electricity and kept for 3 minutes. Twelve dogs were randomly divided into the normal group(n=6) and cardiopulmonary resuscitation(CPR) group(n=6). Cardiac output (CO) and pulmonary artery wedge pressure (PAWP) were measured and blood samples were collected in 12 dogs before and at 6h after successful CPR. The s...