Latent tuberculosis in a newborn: diagnostic challenges

Iris De Schutter1, Kinda Schepers, Mahavir Singh

  • 1Department of Pediatrics, Pediatric Pulmonology, Cystic Fibrosis Clinic and Pediatric Infectious Diseases, Universitair Ziekenhuis Brussel UZ Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium. iris.deschutter@uzbrussel.be

Insights

Perinatal tuberculosis is rare but may increase with HIV and immigration. Early diagnosis in newborns is crucial for preventing disease through chemoprophylaxis.

Area of Science:

  • Neonatal Medicine
  • Infectious Diseases
  • Public Health

Background:

  • Perinatal tuberculosis (TB) is infrequently diagnosed in low-incidence countries.
  • Rising rates of human immunodeficiency virus (HIV) and immigration from high-TB incidence regions may increase perinatal TB cases.
  • Prompt identification of newborns at risk is vital for chemoprophylaxis and disease prevention.

Purpose of the Study:

  • To highlight the challenges in diagnosing latent perinatal tuberculosis infection in newborns.
  • To discuss risk factors for vertical TB transmission and the importance of chemoprophylaxis.
  • To emphasize the need for a high index of suspicion in diagnosing perinatal TB.

Main Methods:

  • Case report of a newborn with latent perinatal tuberculosis infection.
  • Review of diagnostic difficulties in neonates and infants.
  • Discussion of risk factors for vertical TB transmission.

Main Results:

  • A case of latent perinatal tuberculosis infection was diagnosed in a newborn via specific immunological tests, despite a negative tuberculin skin test.
  • Diagnostic challenges include poor testing availability during pregnancy and in newborns.
  • Risk factors for vertical transmission necessitate careful consideration for newborn chemoprophylaxis.

Conclusions:

  • Perinatal TB is rare and challenging to diagnose due to limited testing in pregnant individuals and newborns.
  • A high index of suspicion is essential to minimize diagnostic delays and prevent progression to active perinatal TB disease.
  • Understanding risk factors is key to implementing timely chemoprophylaxis for at-risk newborns.

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