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Hydrocephalus following toxoplasmosis
Insights
Ten children treated for hydrocephalus due to toxoplasmosis required shunts, with most needing long-term support. Two-thirds achieved a reasonable outcome, but neonatal factors indicated poor prognosis.
Area of Science:
- Neuroscience
- Pediatrics
- Infectious Diseases
Background:
- Hydrocephalus is a complex neurological condition often requiring surgical intervention.
- Congenital toxoplasmosis can lead to severe neurological sequelae in infants, including hydrocephalus.
- Long-term outcomes and management challenges for hydrocephalus secondary to toxoplasmosis are not well-defined.
Purpose of the Study:
- To evaluate the long-term outcomes of shunt management in children with hydrocephalus following toxoplasmosis.
- To identify prognostic indicators for children with this specific type of hydrocephalus.
Main Methods:
- Retrospective case series of ten children diagnosed with hydrocephalus secondary to toxoplasmosis between 1966 and 1983.
- Analysis of shunt dependency, complications, need for revisions, and overall patient outcomes.
- Assessment of clinical factors including age at diagnosis, ventricular fluid pressure, cerebral mantle, intracranial calcifications, and ocular findings.
Main Results:
- All ten children required shunting for hydrocephalus, predominantly due to aqueductal obstruction.
- Nine survivors remained shunt-dependent with a mean follow-up of 9.6 years; one-fifth of revisions were toxoplasma-specific.
- Two-thirds of the children experienced a reasonable outcome, with neonatal hydrocephalus, extensive calcifications, and severe ocular involvement being poor prognostic indicators.
Conclusions:
- Shunt management is a viable, albeit often long-term, treatment for hydrocephalus secondary to toxoplasmosis.
- Specific complications and the need for multiple revisions highlight the challenges in managing this condition.
- Early identification of poor prognostic factors is crucial for optimizing patient care and expectations.
Abstract:
Between 1966-1983 ten children with hydrocephalus following toxoplasmosis were shunted. Hydrocephalus was diagnosed at ages ranging from birth to one year. Except for one with stenosis of the foramen of Monro all had aqueductal obstruction. A high ventricular fluid pressure and distinct cerebral mantle reduction were always present. Intracerebral calcifications were common. Only 1 had normal eyes. All 9 survivors remained shunt dependent during a mean follow-up period of 9.6 years. One fifth of revisions were related to problems specific for toxoplasma-associated hydrocephalus. A temporary external ventricular drainage or a multiple shunt system were found useful in some cases. Two thirds of the children had a reasonable outcome. Neonatal hydrocephalus, extensive intracerebral calcification and severe ocular involvement were poor prognostic indicators.