Frequency of toxoplasmosis in the appearance of congenital hydrocephalus

Insights

Congenital toxoplasmosis was confirmed in 39% of infants with hydrocephalus using serological tests. Further investigation is needed for suspected cases lacking sufficient diagnostic data.

Area of Science:

  • Medical Parasitology
  • Pediatric Neurology
  • Infectious Diseases

Background:

  • Hydrocephalus in infants can have various etiologies, including infectious causes.
  • Congenital toxoplasmosis is a significant parasitic infection transmissible from mother to fetus, potentially leading to severe neurological complications like hydrocephalus.

Purpose of the Study:

  • To investigate the prevalence of congenital toxoplasmosis in infants presenting with signs of hydrocephalus.
  • To evaluate the utility of serological markers in diagnosing congenital toxoplasmosis in this specific pediatric population.

Main Methods:

  • Clinical assessment of 38 infants with hydrocephalus, including roentgenographical and ophthalmological examinations.
  • Serological testing for toxoplasmosis using the Sabin-Feldman and IgM-Indirect Fluorescent Antibody (IgM-IFA) tests.
  • Diagnosis confirmation based on the persistence of Toxoplasma antibodies.

Main Results:

  • Congenital toxoplasmosis was confirmed in 15 out of 38 infants (39%).
  • Thirteen infants (34%) were classified as having 'suspected congenital toxoplasmosis' due to insufficient serological data.
  • Ten infants with hydrocephalus and negative serology were deemed not infected with toxoplasmosis.

Conclusions:

  • Congenital toxoplasmosis is a notable cause of hydrocephalus in infants.
  • Serological testing is crucial for diagnosing congenital toxoplasmosis, but persistent antibody demonstration is key.
  • A significant proportion of infants with hydrocephalus require further evaluation for suspected toxoplasmosis.

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