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Outcome for preterm infants with germinal matrix hemorrhage and progressive hydrocephalus
M L Levy1, L S Masri, J G McComb
1Division of Neurosurgery, Childrens Hospital of Los Angeles, California, USA.
Insights
The extent of intracranial hemorrhage is the primary factor influencing survival and neurodevelopmental outcomes in preterm infants with progressive hydrocephalus. Severe hemorrhage significantly impacts mortality, cognitive function, and motor deficits.
Area of Science:
- Neonatal neurology
- Pediatric neurosurgery
- Clinical outcomes research
Background:
- Preterm infants with severe intracranial hemorrhage (Grade III-IV) often develop progressive hydrocephalus requiring surgical intervention.
- Hydrocephalus in this vulnerable population presents significant challenges to neurodevelopment and survival.
Purpose of the Study:
- To analyze mortality, intellectual impairment, and motor deficits in preterm infants with surgically treated progressive hydrocephalus secondary to intracranial hemorrhage.
- To identify key predictors of outcome in this patient cohort.
Main Methods:
- Analysis of 76 preterm infants with Grade III or IV intracranial hemorrhage and surgically treated progressive hydrocephalus.
- Variables included prematurity, birth weight, Apgar scores, hemorrhage extent, seizures, and surgical management details (shunt placement, revisions).
- Statistical analyses employed hierarchical linear regression and logistic regression.
Main Results:
- Mortality was best predicted by the extent of intracranial hemorrhage, number of shunt revisions, and birth weight.
- Motor outcome was significantly determined by the grade of hemorrhage, birth weight, and seizure activity.
- In long-term survivors, hemorrhage grade was the most critical factor for cognitive outcome, motor function, and seizure presence.
Conclusions:
- The extent of intracranial hemorrhage is the overwhelming determinant of outcome in preterm infants with progressive hydrocephalus.
- Severe intracranial hemorrhage significantly impacts survival, cognitive development, and motor function.
- Hemorrhage grade and multiple shunt revisions are key predictors of survival in this population.
Objective:
An analysis of 76 preterm infants with Grade III or IV intracranial hemorrhage and surgically treated progressive hydrocephalus was undertaken to determine mortality, intellectual impairment, and motor deficit.
Methods:
The variables examined were degree of prematurity, birth weight, sex, Apgar scores, extent of intracranial hemorrhage, seizures, age at time of initial placement of a ventricular catheter reservoir to control hydrocephalus, need to convert the reservoir to a ventriculoperitoneal shunt, timing of the conversion of the reservoir to a ventriculoperitoneal shunt, and number of shunt revisions. Outcome was assessed for statistical significance using hierarchical linear regression and logistic regression analyses.
Results:
Linear regression analysis determined that mortality was best predicted, in order of importance, by extent of intracranial hemorrhage, number of shunt revisions, and birth weight (P < 0.0001, R = 0.79). Grade of hemorrhage, weight at birth, and presence of seizure activity were the most important determinants of motor outcome (P < 0.001, R = -0.78).
Conclusions:
Logistic regression analysis of the 41 long-term survivors determined that grade of hemorrhage was the most important variable in determining cognitive outcome (P < 0.0001), motor function (P < 0.0001), and presence of seizure activity (P < 0.001). A logistic model of survival determined that grade of hemorrhage and multiple shunt revisions (more than five) were the most important determinants (P < 0.0001) of survival. In conclusion, the overwhelming factor in determining outcome in this patient group was the extent of intracranial hemorrhage.