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The changing neurourologic lesion in myelodysplasia
Insights
External urethral sphincter innervation changes are common in newborns with myelodysplasia, often occurring within the first year. Continuous monitoring is crucial due to the dynamic nature of this condition.
Area of Science:
- Pediatric Neurology
- Urology
- Developmental Biology
Background:
- Myelodysplasia is a congenital condition affecting neural development.
- Neurologic and urodynamic function can change over time in affected children.
Purpose of the Study:
- To evaluate changes in external urethral sphincter innervation in newborns with myelodysplasia.
- To identify risk factors and timing of these changes.
- To assess the impact of neurosurgical interventions.
Main Methods:
- Serial roentgenographic, neurologic, and urodynamic evaluations.
- Longitudinal follow-up of 79 newborns with myelodysplasia for 1.5 to 6 years.
Main Results:
- 37% of infants showed changes in sphincter innervation within the first three years, predominantly in the first year (89.6%).
- 19% experienced neurourologic deterioration, while 18% improved.
- Second neurosurgical procedures yielded mixed results: improvement in 4, stabilization in 2, and deterioration in 1 infant.
Conclusions:
- External urethral sphincter innervation changes are a dynamic process in myelodysplasia.
- Early and ongoing neurologic and urologic surveillance is essential for managing these children.
Abstract:
Seventy-nine newborns with myelodysplasia were followed up for 1 1/2 to six years with serial roentgenographic, neurologic, and urodynamic evaluations. Twenty-nine infants (37%) demonstrated changes in external urethral sphincter innervation during the first three years of life. Of the group who changed, 896% (25/29 infants) did so in the first year, 10% (3/29 infants) in the second year, and 4% (1/29 infants) in the third. The risk factor for change was 32%, 6%, and 2%, respectively, during each of these three years. Fifteen infants (19% of the total) experienced neurourologic deterioration while 14 infants (18%) improved. Seven newborns underwent a second neurosurgical procedure resulting in improvement in four, stabilization in two, and further deterioration in one. These findings underline the importance of early and continued neurologic and urologic surveillance in children with myelodysplasia because it is a dynamic disease process.