Related Experiment Video
Updated: Jul 21, 2026
High-throughput Detection of Respiratory Pathogens in Animal Specimens by Nanoscale PCR
Published on: November 28, 2016
High-throughput next-generation sequencing for identifying pathogens during early-stage post-lung transplantation
Qiao-Yan Lian1, Ao Chen1, Jian-Heng Zhang1
1State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
High-throughput next-generation sequencing (HT-NGS) offers superior pathogen detection in lung transplant recipients compared to conventional methods. This advanced technique improves diagnosis and treatment optimization for early-stage post-transplant pulmonary infections.
Area of Science:
- Infectious Disease
- Transplant Surgery
- Genomics
Background:
- High-throughput next-generation sequencing (HT-NGS) has potential for broad pathogen detection but is underutilized in lung transplant (LTx) recipients.
- Pulmonary infections pose significant risks in the early stages post-lung transplantation.
Purpose of the Study:
- To evaluate the efficacy of HT-NGS for pathogen detection and diagnosis of pulmonary infections in early-stage lung transplant recipients.
- To compare the diagnostic performance of HT-NGS with conventional microbiological testing in this patient population.
Main Methods:
- A retrospective study involving 51 lung transplant recipients from January to December 2020.
- Bronchoalveolar lavage fluid (BALF) samples were analyzed using both HT-NGS and conventional microbiological methods.
- Comparative analysis of pathogen detection rates and diagnostic accuracy between the two methods.
Main Results:
- HT-NGS demonstrated a higher positive pathogen detection rate (88.24%) than conventional methods (76.47%).
- Common pathogens included Enterococcus, Staphylococcus, Pseudomonas, Klebsiella, Candida, and Herpesvirus. Uncommon pathogens like Strongyloides, Legionella, and Mycobacterium abscesses were also identified.
- HT-NGS showed significantly higher sensitivity (97.14%) for diagnosing pulmonary infections compared to conventional testing (68.57%; P < 0.001).
- Treatment regimens were adjusted based on HT-NGS results in three patients, leading to complete recovery.
Conclusions:
- HT-NGS is a highly sensitive method for pathogen detection in lung transplant recipients.
- This technique offers diagnostic advantages, aiding in the optimization of treatment strategies for early-stage post-transplant pulmonary infections.
