Related Experiment Video
Updated: Jun 7, 2025
Author Spotlight: Advancing Rapid Detection of Respiratory Pathogens Using Microfluidic Chip
Published on: March 29, 2024
The Clinical Application Value of a Novel Chip in the Detection of Pathogens in Adult Pneumonia: A Multi-Centre
Ruixue Zhang1, Hui Xu1, Xiaoxue Zhang1
1Department of Geriatrics, Peking University First Hospital, Beijing, People's Republic of China.
Purpose:
The detection of pathogenic microorganisms plays a significant role in the diagnosis and management of pneumonia that are responsible for a substantial number of deaths worldwide. However, conventional microbiological tests (CMT) have low accuracy and are time-consuming. In this study, we aim to evaluate the clinical value of Chips for Complicated Infection Detection (CCID) in detecting pneumonia pathogens.
Patients And Methods:
This study was conducted at nine hospitals in China from January 2021 to September 2022. Respiratory samples from adult pneumonia patients were collected from each patient. CMT and CCID were performed in parallel to identify the pathogens.
Results:
A total of 245 patients were included, with 73% being elderly. CCID identified pathogenic microbes in 78.0% of patients and conventional microbiological tests (CMT) in 57.1% of the patients (p<0.001). The overall positive and negative percent agreements between CCID and CMT for pathogen detection were 90.07% and 38.46%, respectively. 38.8% of patients were diagnosed with mixed infections with at least two pathogens by CCID. Bacterial infections identified by CCID accounted for 60.0% of 245 patients, with the top 3 being Pseudomonas aeruginosa, Klebsiella pneumoniae, and Enterococcus faecium, respectively. K. pneumoniae was the most common pathogen in elderly patients, with a significantly higher prevalence compared to non-elderly patients (p = 0.0011). Among the 197 patients who had used antibiotics before sample collection, the positive rate of CCID was significantly higher than that of CMT (p < 0.001).
Conclusion:
This study indicates that compared to CMT, this novel chip has significant advantages in detecting pathogens in pneumonia patients, especially in the elderly.
Insights
A new chip-based test (CCID) shows higher accuracy in detecting pneumonia pathogens than traditional methods (CMT), particularly in elderly patients. This advancement aids in faster diagnosis and better management of pneumonia.
Area of Science:
- Medical Diagnostics
- Microbiology
- Infectious Diseases
Background:
- Pneumonia is a leading cause of death globally, necessitating accurate and rapid pathogen detection.
- Conventional microbiological tests (CMT) for pneumonia pathogens suffer from low accuracy and long turnaround times.
- Timely and precise identification of causative agents is crucial for effective pneumonia management.
Purpose of the Study:
- To evaluate the clinical utility of Chips for Complicated Infection Detection (CCID) for identifying pneumonia pathogens.
- To compare the performance of CCID against conventional microbiological tests (CMT).
- To assess the effectiveness of CCID in diverse patient populations, including the elderly.
Main Methods:
- A parallel study design was employed across nine hospitals in China from January 2021 to September 2022.
- Respiratory samples from 245 adult pneumonia patients were analyzed using both CCID and CMT.
- Pathogen identification and detection rates were compared between the two methods.
Main Results:
- CCID detected pathogens in 78.0% of patients, significantly higher than CMT's 57.1% (p<0.001).
- The positive percent agreement between CCID and CMT was 90.07%.
- CCID identified mixed infections in 38.8% of cases and showed higher detection rates in patients with prior antibiotic use.
Conclusions:
- CCID demonstrates superior performance in detecting pneumonia pathogens compared to CMT.
- The novel chip technology offers significant advantages, especially for diagnosing pneumonia in elderly patients.
- CCID represents a promising advancement for the accurate and efficient diagnosis of pneumonia.
