JAMA子刊:ICS/LABA联合治疗对早产儿相关肺部疾病有益

2022-02-15 小文子 MedSci原创

与ICS或安慰剂相比,ICS/LABA联合治疗明显改善伴有肺功能缺陷早产儿的肺功能。

目前仍缺乏早产儿肺部疾病治疗的相关证据。JAMA Pediatrics杂志的一项研究探索了与吸入性安慰剂相比,吸入糖皮质激素(ICS)单药或与长效β2激动剂(LABA)联合治疗12周是否能改善学龄期早产儿(FEV1≤85%预计值)的肺活量和运动能力。

研究纳入无实质性先天异常或严重心肺或神经发育障碍的早产儿童(7-12岁;出生时胎龄≤34周)。治疗前后进行肺活量测定、运动水平测试和呼出气一氧化氮水平(FENO)的测定。

2017年7月1日至2019年8月31日期间,在英国一家儿童医院登记了144名早产儿童。随机分配至3个治疗组:丙酸氟替卡松50 μg,与安慰剂;丙酸氟替卡松50 μg与沙美特罗25 μg;吸入安慰剂,每天两次,每次两揿,持续12周。既往接受ICS治疗的儿童在随机接受ICS或ICS/LABA治疗前进行洗脱。

结果显示,在144例FEV1≤85%预计值的早产儿童中,53例被随机分组。20名儿童接受ICS治疗(包括5名随机化分组前接受ICS治疗), 19名儿童接受ICS/LABA治疗(包括4名随机化前接受ICS治疗),14名儿童接受安慰剂治疗。早产儿童的平均年龄为10.8(1.2)岁,其中29名(55%)女性。治疗后的FEV1%根据性别、妊娠、支气管肺发育不良、宫内生长受限、治疗前皮质类固醇状态、治疗组和预处理值进行调整。

使用协方差分析,治疗后,ICS组的校正FEV1%均值为7.7%(95%CI, −0.27% ~ 15.72%; P= 0.16),ICS/LABA组的FEV1%均值为14.1%(95%CI, 7.3% ~ 21.0%; P= 0.002),均高于安慰剂组。积极治疗降低了FENO水平,改善运动后支气管扩张反应,但不能改善运动能力。一名儿童在开始进行吸入治疗时出现咳嗽,试验期间,没有发生其他吸入治疗相关的不良事件。

这项随机临床试验的结果表明,与ICS或安慰剂相比,ICS/LABA联合治疗明显改善伴有肺功能缺陷早产儿的肺功能。

原文出处:

Nia Goulden, Michael Cousins, et al, Inhaled Corticosteroids Alone and in Combination With Long-Actingβ2 Receptor Agonists to Treat Reduced Lung Function in Preterm-Born Children, A Randomized Clinical Trial, JAMA Pediatr. 2022;176(2):133-141. doi:10.1001/jamapediatrics.2021.5111.

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