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Neurocognitive Function in Children with Primary Hypertension.

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Children with primary hypertension show impaired neurocognitive function, particularly in memory, attention, and executive functions, compared to healthy peers. Disordered sleep exacerbates these cognitive deficits in hypertensive youth.

Keywords:
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Area of Science:

  • Pediatric Health
  • Neuroscience
  • Cardiovascular Health

Background:

  • Primary hypertension is increasingly diagnosed in children and adolescents.
  • The impact of pediatric hypertension on cognitive development and function is not fully understood.
  • Early identification of cognitive deficits is crucial for timely intervention.

Purpose of the Study:

  • To compare neurocognitive test performance between children with newly diagnosed primary hypertension and normotensive controls.
  • To investigate specific cognitive domains affected by pediatric hypertension.
  • To explore the relationship between disordered sleep and executive function in hypertensive youth.

Main Methods:

  • A prospective, multicenter study involving 75 children (10-18 years) with untreated primary hypertension and 75 matched normotensive controls.
  • Comprehensive neurocognitive testing assessing general intelligence, attention, memory, executive function, and processing speed.
  • Parental rating scales for executive function and sleep-related breathing disorders (PSQ-SRBD).

Main Results:

  • Hypertensive youth exhibited significantly worse performance on memory (Rey Auditory Verbal Learning Test), executive function (Groton Maze Learning Test), and processing speed (Grooved Pegboard).
  • Hypertension was independently associated with lower scores on intelligence (Wechsler Abbreviated Scales of Intelligence Vocabulary).
  • A significant interaction revealed that hypertension amplified the negative impact of disordered sleep on executive function.

Conclusions:

  • Youth with primary hypertension demonstrate impaired neurocognitive performance compared to normotensive children.
  • Key affected domains include memory, attention, and executive functions.
  • Disordered sleep significantly exacerbates executive function deficits in children with primary hypertension.