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Intrauterine malnutrition is a key risk factor for cerebral palsy (CP) and psychomotor retardation (PMR). Early diagnosis and intervention for at-risk newborns are crucial for improving outcomes.
Area of Science:
- Perinatal Medicine
- Developmental Pediatrics
- Public Health
Background:
- Major childhood handicaps, including cerebral palsy (CP), psychomotor retardation (PMR), sensorineural hearing defects, and acquired hydrocephalus, pose significant public health challenges.
- Understanding the incidence and etiological factors of these sequelae is crucial for developing effective preventive strategies and improving perinatal care.
Purpose of the Study:
- To retrospectively determine the incidence of major sequelae in a large cohort of 3-year-old children.
- To identify risk factors associated with these handicaps, particularly focusing on factors beyond extreme immaturity or birth trauma.
- To inform future research and clinical practice for the prevention and management of childhood disabilities.
Main Methods:
- Retrospective analysis of 6,500 children born between 1969-1970 at a single Swedish hospital.
- Uniform treatment protocols based on modern perinatology principles were applied.
- Exclusion criteria included congenital malformation syndromes, chromosomal aberrations, and congenital infections (viral, toxoplasmosis).
Main Results:
- The overall incidence of the four studied handicaps was 3.5 per 1,000 children after exclusions.
- Cerebral palsy (CP) incidence was 1.2 per 1,000.
- Intrauterine malnutrition was identified as the primary risk factor, with two-thirds of affected children originating from newborns with low birth weight relative to gestational age.
Conclusions:
- Extreme immaturity, traumatic delivery, postnatal asphyxia, and hyperbilirubinemia were minor contributors to sequelae in this cohort.
- Intrauterine malnutrition represents a significant modifiable risk factor for PMR and/or CP.
- Future improvements may be achieved through earlier intrauterine diagnosis, selective pregnancy termination, and enhanced perinatal care for at-risk infants.
Abstract:
The incidence of major sequelae-cerebral palsy (CP), psychomotor retardation (PMR), sensorineural hearing defect, and acquired hydrocephalus--has been studied retrospectively in a nonselected population of 6,5000 3-year-old children born in 1969 and 1970 at one Swedish hospital and treated uniformly according to the principles of modern perinatology. The total incidence of these four types of handicaps was 3.5 per 1,000 when children with congenital malformation syndromes, chromosomal aberrations, verified congenital viral infections, or toxoplasmosis were excluded. The incidence of CP was 1.2 per 1,000. Extreme immaturity, traumatic delivery, postnatal asphyxia, and hyperbilirubinemia were found to be relatively small factors as causes of sequelae in this population. Babies showing various degrees of intrauterine malnutrition were found to be the major remaining group at risk for PMR and/or CP, two thirds of children with these handicaps being recruited from the 16% of newborns with birthweights more than 1 SD below normal in relation to gestational age. The most important further gains can probably be made by earlier intrauterine diagnosis of these cases, induced termination of pregnancy in selected cases, and further studies on the perinatal treatment and adaptation of these infants.