用于检测阿斯伯吉洛症肺炎的下一代元基因组测序在免疫功能低下的患者中:一项回顾性研究
Yan Shi1, Jin-Min Peng1, Xiao-Yun Hu1
1Department of Medical ICU, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.
下一代元基因组测序 (mNGS) 提供了一种敏感且准确的方法,用于诊断免疫功能低下患者 (ICP) 侵袭性肺阿斯伯吉洛症 (IPA). 这种先进的技术在敏感性方面超过了传统的微生物测试,有助于病原体的识别和治疗指导.
科学领域:
- 医学真菌学 医学真菌学
- 传染性疾病 传染性疾病
- 基因组学和生物信息学
背景情况:
- 在免疫受损患者 (ICP) 中诊断侵袭性肺阿斯伯吉洛症 (IPA) 是具有挑战性的,因为核酸提取有困难.
- 传统的微生物测试 (CMT) 在检测Aspergillus物种的灵敏度和特异性方面存在局限性.
研究的目的:
- 评估元基因组下一代测序 (mNGS) 的准确性和效率,以检测ICP中的IPA.
- 为了比较mNGS与传统微生物测试 (CMT) 的诊断性能.
主要方法:
- 分析了来自133个ICP (46个IPA,87个没有) 的支气管支气管洗液 (BALF),使用mNGS和CMTs (涂抹,培养,血清/BALF银河曼南).
- 临床综合诊断作为参考标准.
- 比较诊断性能指标,包括灵敏度,特异性和准确性.
主要成果:
- mNGS显示了IPA的高诊断性能:82.6%的灵敏度,97.7%的特异性和92.5%的准确性.
- mNGS的灵敏度明显超过了单个CMT (涂抹,培养,血清GM,BALFGM).
- 在培养负和混合感染中,mNGS确定了特定的Aspergillus物种和共致病原体 (例如,Mucor spp.,P. jirovecii,CMV).
结论:
- mNGS是一种可行的,高度敏感的辅助工具,用于在ICP中检测Aspergillus.
- mNGS精确识别真菌物种和共致病原体,支持有针对性的抗菌疗法.
- 该研究强调了mNGS在改善IPA的诊断和管理方面的潜力.
更多相关视频
09:52Histological Quantification to Determine Lung Fungal Burden in Experimental Aspergillosis
Published on: March 9, 2018
15:01Confocal Laser Scanning Microscopy-Based Quantitative Analysis of Aspergillus fumigatus Conidia Distribution in Whole-Mount Optically Cleared Mouse Lung
Published on: September 18, 2021
相关概念视频
Pneumonia I: Introduction
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Medical History
Sputum Studies I: Gram Stain, cytology, and Acid-fast smear and culture
Gram Stain
The Gram Stain is an integral part of sputum studies. It involves the staining of sputum, which permits...
Sputum Studies II: Culture and Sensitivity
Sputum culture and sensitivity is a medical procedure used to diagnose bacterial infections in the respiratory tract and select the most appropriate antibiotics for treatment. This process involves analyzing sputum samples of thick and opaque secretions produced in the lungs and airways. These samples are collected from patients and then sent to the laboratory for analysis.
The test can identify various pathogens responsible for respiratory infections, including Streptococcus,...
