血液净化在重症腺病毒肺炎患儿中的临床应用

目的 探讨血液净化在救治重症腺病毒肺炎患儿中的作用。方法 将2019年2~6月行机械通气治疗的57例重症腺病毒肺炎患儿，根据是否进行血液净化分为净化组（n=22）和常规组（n=35）。收集两组患儿的临床指标，包括热程、机械通气时间、重症监护室（ICU）住院时间及病死率；净化组血液净化前及净化后48 h白细胞介素-6（IL-6）、肿瘤坏死因子-α（TNF-α）水平，血液净化前及净化后6、12、24、48 h的每搏输出变异率（SVV）、胸腔液体水平（TFC）、氧合指数（P/F）、二氧化碳分压（PCO2）。结果 净化组热程、机械通气时间、ICU住院时间均要短于常规组（P < 0.05），两组病死率比较差异无统计学意义（P > 0.05）。净化组患儿血液净化后IL-6、TNF-α水平较血液净化前均下降（P < 0.05）。血液净化后12、24、48 h ，净化组患儿SVV、TFC均较血液净化前下降（P < 0.01）。血液净化后6、12、24、48 h，净化组患儿P/F值均较血液净化前上升，PCO2均较血液净化前下降（P < 0.01）。结论 血液净化对重症腺病毒肺炎治疗具有辅助作用，可有效改善患儿的临床症状，是重症腺病毒肺炎有潜力的治疗选择。

Clinical application of blood purification in treatment of severe adenovirus pneumonia

Objective To study the role of blood purification in the treatment of severe adenovirus pneumonia. Methods A total of 57 children with severe adenovirus pneumonia who underwent mechanical ventilation from February to June, 2019, were enrolled. According to whether blood purification was performed, they were divided into a purification group with 22 children and a conventional group with 35 children. Related clinical indices were collected, including duration of fever, duration of mechanical ventilation, length of stay in the intensive care unit (ICU), and mortality rate. The purification group was analyzed in terms of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) before blood purification and at 48 hours after blood purification, as well as stroke volume variation (SVV), thoracic fluid content (TFC), arterial partial pressure of oxygen/fraction of inhaled oxygen (P/F) value, and partial pressure of carbon dioxide (PCO2) before blood purification and at 6, 12, 24, and 48 hours after blood purification. Results Compared with the conventional group, the purification group had significantly shorter duration of fever, duration of mechanical ventilation, and length of stay in the ICU (P < 0.05), and there was no significant difference in the mortality rate between the two groups (P > 0.05). The purification group had significant reductions in IL-6 and TNF-α after blood purification, (P < 0.05) and significant reductions in SVV and TFC at 12, 24, and 48 hours after blood purification (P < 0.01), as well as a significant increase in P/F value and a significant reduction in PCO2 at 6, 12, 24, and 48 hours after blood purification (P < 0.01). Conclusions Blood purification as an auxiliary therapy can effectively improve the clinical symptoms of children with severe adenovirus pneumonia, and is thus an option for the treatment of severe adenovirus pneumonia in children.