( A minor study reported at the American ...)Hypertensive Kids at risk of sleep disordered breathing,Health

A minor study reported at the American Heart Association's 60th Annual Fall Conference of the Council for High Blood Pressure Research reveals that kids with high blood// pressure may be at risk of sleep breathing disorders.

The study was conducted on kids with high blood pressure, 60 % of whom were affected by a disorder called sleep disordered breathing (SDB). Short phases of upper airway obstructions cause SDB. These obstructions can be complete (apnea) or partial (hypopnea). SDB can also be caused by a longer period of insufficient air movement (obstructive hypoventilation).

In the study, 60 percent of hypertensive children had a condition called sleep disordered breathing (SDB). SDB is characterized by short periods of upper airway obstructions that are complete (apnea) or partial (hypopnea), or a longer period of insufficient air movement (obstructive hypoventilation).

"SDB is important because it can result in daytime sleepiness, limited attention span, poor school performance, hyperactivity, poor growth and increased blood pressure in the lungs," said Alisa A. Acosta, M.D., lead author of the study and a Fellow in pediatric kidney disease and hypertension at the University of Texas Medical School at Houston.

"We know there's a link in adults between obstructive sleep apnea -- the most common of the SDBs -- and high blood pressure, so we were curious to see if the same link exists in our pediatric population," she said.

In obstructive sleep apnea (OSA), a person's airway repeatedly collapses or partially collapses during sleep. This results in brief periods of not breathing (apnea) followed by sudden attempts to breathe. The sleep disruptions lead to daytime fatigue and reduced cognitive performance. Another SDB, obstructive hypoventilation, is inadequate breathing to meet the body's needs.

Risk factors for SDB in children include obesity and enlarged tonsils. Some signs of SDB in a child include s
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