Congenital Tuberculosis Diagnosis and Management
Summary
Congenital tuberculosis is an uncommon but serious manifestation of Mycobacterium tuberculosis infection transmitted from mother to fetus either in utero via the placenta or intrapartum through infected amniotic fluid. The condition carries a high mortality rate when diagnosis and treatment are delayed. Clinical presentation in neonates is often nonspecific, with respiratory distress, fever, hepatosplenomegaly and feeding difficulties predominating. Radiological findings may include pneumonia, miliary nodules or pleural effusion, but these are not pathognomonic. Definitive diagnosis relies on microbiological confirmation through acid-fast bacilli smear, culture of gastric aspirates or pleural fluid and molecular assays such as interferon-gamma release tests. Management centres on prompt initiation of a four-drug regimen adapted for neonatal pharmacokinetics, close clinical monitoring and supportive measures. Maternal screening for tuberculosis during pregnancy is critical to prevent vertical transmission. In high-burden settings, maintaining a high index of suspicion in unwell neonates and ensuring rapid access to diagnostics and paediatric formulations of anti-tuberculosis drugs can markedly improve outcomes. Integrated maternal and neonatal care pathways, coupled with community outreach and health-system strengthening, are essential to reduce the global burden of congenital tuberculosis.
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Congenital Tuberculosis Diagnosis and Management publication trend
The graph below shows the total number of articles in congenital tuberculosis diagnosis and management across all publications each year (not limited to Nature Index journals).
Technical terms
Congenital tuberculosis: Tuberculosis infection present at birth resulting from maternal transmission to the fetus.
Transplacental transmission: Passage of pathogens from maternal blood through the placenta to the fetal circulation.
Miliary pattern: Radiological appearance of numerous tiny nodules throughout the lungs, reflecting haematogenous dissemination of tuberculosis.
Hepatosplenomegaly: Enlargement of the liver and spleen, commonly seen in congenital infections.
Gastric lavage: Collection of stomach contents from a neonate for microbiological examination when sputum cannot be expectorated.
T-SPOT.TB assay: An interferon-gamma release test that detects T-cell responses to tuberculosis-specific antigens.
References
- A Perspective of the Diagnosis and Management of Congenital Tuberculosis. Journal of Pathogens (2016).
- Diagnosis and treatment of congenital tuberculosis: a systematic review of 92 cases. Orphanet Journal of Rare Diseases (2019).
- Congenital tuberculosis detected by T-SPOT.TB assay in a male infant after in vitro fertilization and followed up with radiography. Italian Journal of Pediatrics (2014).
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