The Predictive Value of Molecular Diagnostic Techniques in the Antimicrobial- Resistance Phenotypes of Pathogens

Nanjing Medical University

Status: Invitation-only

Conditions: High-Throughput Nucleotide Sequencing; Antimicrobial Drug Resistance

Study type: Observational

Funder types: Other

Identifiers

NCT07035535

2024-SR-1175

Details and patient eligibility

About

This observational study is to learn about the predictive value of targeted next-generation sequencing(tNGS) in pathogen resistance phenotype of patients with lower respiratory tract infection ,by detecting antimicrobial-resistant genes.

Enrollment: 200 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Aged 18 years and above
• Lower respiratory tract infection based on at least two of the followings: abnormal temperature (body temperature greater than 38.5°C or less than 36.5°C), leucocyte count abnormality (leucocyte count greater than 10*10^9/L or less than 4*10^9/L), and the presence of purulent tracheal secretions.
• Patients have been performed tNGS test in-hospital, with the criterion that the reads per kilobase per million mapped reads(RPKM) for staphylococcus aureus exceeds 200, acinetobacter baumannii exceeds 300, klebsiella pneumoniae exceeds 20, or pseudomonas aeruginosa exceeds 100.

Exclusion criteria

• Klebsiella pneumoniae，acinetobacter baumannii,pseudomonas aeruginosa or staphylococcus aureus were not cultured in BALF.