BALF病原微生物mNGS检测在难治性肺炎中的应用研究
Application of Detection of Pathogenic Microorganism in BALF by mNGS in Refractorily Treated Pneumonia
王娜 1张方 1孟君 1赵智东 1许运铎2
作者信息
- 1. 053099 河北衡水,衡水市第二人民医院呼吸内科
- 2. 053099 河北衡水,衡水市第二人民医院重症医学科
- 折叠
摘要
目的 探讨支气管肺泡灌洗液(BALF)病原微生物宏基因组二代测序技术(mNGS)在难治性肺炎(RTP)患者中的应用效果.方法 回顾分析 2023 年 1 月至 2024 年 1 月收治的 60 例行支气管镜BALF宏基因检测(mNGS组)和60 例行传统培养(传统组)的RTP患者资料.对比mNGS组与传统组检出阳性率、病原菌、感染类型和治疗情况.结果 mNGS组病原菌检出阳性率为95.00%(57/60)高于传统组的 71.67%(43/60)(P＜0.05).mNGS组与传统组分别检出84 株、57 株病原菌.mNGS组革兰阴性菌、革兰阳性菌阳性检出率低于传统组,真菌、病毒、特殊病原体阳性检出率均高于传统组(P＜0.05,P＜0.01).传统组单一感染检出率高于mNGS组(P＜0.01),且以细菌感染为主.mNGS组混合感染检出率高于传统组(P＜0.01),且以病毒-细菌感染、病毒-细菌-真菌感染为主.mNGS组抗菌药物使用时间、抗菌药物调整频次、住院时间、住院费用短于或低于传统组,总有效率高于传统组(P＜0.05,P＜0.01).结论 BALF病原微生物mNGS检测在RTP患者病原学诊断中有良好的应用效果,可以帮助临床医生早期识别病原体进而实施精准治疗,提高治疗总有效率,减少并发症.
Abstract
Objective To investigate the application effect of detection of pathogenic microorganism in bronchoalveo-lar lavage fluid(BALF)by metagenomic next-generation sequencing technology(mNGS)in patients with refractorily treated pneumonia(RTP).Methods The data of 60 RTP patients who underwent bronchoscopic mNGS of BALF(mNGS group)and 60 RTP patients who underwent traditional culture(traditional group)from January 2023 to January 2024 were retrospec-tively analyzed.The positive rate,pathogen type,infection type and treatment were compared between mNGS group and tradi-tional group.Results The positive detection rate of pathogenic bacteria in mNGS group was 95.00%(57/60),which was higher than that of traditional group(71.67%,43/60)(P＜0.05).In all,84 strains and57 strains were detected in the mNGS group and the traditional group,respectively.The positive detection rates of gram-negative bacteria and gram-positive bacteria in mNGS group were lower than those in traditional group,while the positive detection rates of fungi,viruses and spe-cial pathogens in MNGS group were higher than those in traditional group(P＜0.05,P＜0.01).The detection rate of single infection in traditional group was higher than that in mNGS group(P＜0.01),and bacterial infection was the main one.The detection rate of mixed infection in mNGS group was higher than that in traditional group(P＜0.01),and virus-bacterial in-fection and virus-bacteria-fungal infection were the main ones.The duration of antibiotic use,frequency of antibiotic adjust-ment,length of hospital stay and hospitalization expenses in mNGS group were shorter or lower than those in traditional group,and the total effective rate was higher than that in traditional group(P＜0.05,P＜0.01).Conclusion Detection of patho-genic microorganism in BALF by mNGS has a good application effect in the etiological diagnosis of RTP patients,which can help clinicians identify pathogens early and then implement precise treatment,improve the total effective rate of treatment and reduce complications.
关键词
难治性肺炎/感染/肺泡灌洗液/宏基因检测技术/病原菌/检测方法/治疗效果Key words
Refractorily treated pneumonia/Infection/Alveolar lavage fluid/Metagenomic next-generation sequen-cing technology/Pathogenic bacteria/Detection method/Therapeutic effect引用本文复制引用
基金项目
衡水市科技计划项目(2022014088Z)
出版年
2024
国家科技期刊平台
NSTL
万方数据