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Neonatal hypertension. Incidence and risk factors
H P Singh1, R M Hurley, T F Myers
1Department of Pediatrics, Loyola University of Chicago, Maywood, Illinois.
Insights
Neonatal hypertension affects 0.81% of infants, with renal causes in half of cases. Key risk factors include bronchopulmonary dysplasia, patent ductus arteriosus, intraventricular hemorrhage, and umbilical arterial catheterization.
Area of Science:
- Neonatalogy
- Pediatric Cardiology
- Critical Care Medicine
Background:
- Neonatal hypertension is a rare but serious condition.
- Identifying incidence and risk factors is crucial for early intervention.
Purpose of the Study:
- To determine the incidence of neonatal hypertension.
- To identify significant risk factors associated with its development.
Main Methods:
- A retrospective study of 3179 infants admitted to a neonatal intensive care unit over 6 years.
- Analysis of medical records to identify hypertension and associated conditions.
Main Results:
- The incidence of neonatal hypertension was 0.81% (26/3179).
- Renal origin was identified in 50% of cases; etiology was undetermined in 15.4%.
- Significant risk factors included bronchopulmonary dysplasia, patent ductus arteriosus, intraventricular hemorrhage, and umbilical arterial catheterization.
Conclusions:
- Neonatal hypertension has a low incidence but significant associated morbidities.
- Bronchopulmonary dysplasia, PDA, IVH, and umbilical arterial catheterization are key risk factors.
- Further research into the specific mechanisms and management is warranted.
Abstract:
To determine the incidence and risk factors for neonatal hypertension we studied the entire population of 3179 infants admitted to our neonatal intensive care unit over a 6-year period. We report a 0.81% (26/3179) incidence of hypertension in this population. In 13 patients (50%) the hypertension was renal in origin. In four patients (15.4%), the etiology of hypertension could not be determined. Significant risk factors for neonatal hypertension included: bronchopulmonary dysplasia (5.9% in affected infants v 0.5% in unaffected infants, P less than .001); patent ductus arteriosus (3.07% in affected v 0.5% in unaffected infants, P less than .001); intraventricular hemorrhage (2.89% in affected infants v 0.56% in unaffected infants, P less than .001); and umbilical arterial catheterization (8.8% v 0.2% in infants with and without catheterization, respectively, P less than .001).