Using Blood Samples to Diagnose Disseminated Tuberculosis
Author Information
Author(s): Ma Jing, Jiang Yongfang, He Yan, Zhou Huaying
Primary Institution: Second Xiangya Hospital, Central South University, Changsha, Hunan, China
Hypothesis
The study aims to assess the clinical value of metagenomic next-generation sequencing (mNGS) of blood samples for the identification of disseminated tuberculosis (DTB).
Conclusion
The study found that mNGS of blood samples has excellent sensitivity for diagnosing disseminated tuberculosis.
Supporting Evidence
- 28 patients were diagnosed with DTB, while 20 were confirmed as non-DTB cases.
- 67.9% of DTB patients contained TB sequences detectable by mNGS.
- The sensitivity of TB mNGS in blood samples was 80% for HIV-infected patients.
Takeaway
Doctors can use a special blood test to find out if someone has a serious type of tuberculosis that spreads in the body, which is really helpful for patients, especially those with HIV.
Methodology
The study enrolled 48 individuals suspected of DTB who underwent mNGS of peripheral blood and conventional microbiological tests.
Potential Biases
Potential biases from selection and referral processes due to the study being conducted in a single center.
Limitations
The sample size was relatively small, and the study did not include traditional culture for comparative analysis.
Participant Demographics
Median age was 55 years, with 60.7% male and 35.7% HIV positive.
Statistical Information
P-Value
p = 0.012
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website