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Sleep-related Breathing Disorders Affect Children's Blood Pressure During Sleep

Date:
June 12, 2008
Source:
American Academy of Sleep Medicine
Summary:
All severities of sleep-related breathing disorders in children are associated with elevated blood pressure during sleep compared with non-snoring control children.

n the first study to use continuous measurements of blood pressure during overnight sleep, a research abstract that will be presented on June 12 at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS) finds that all severities of sleep-related breathing disorders (SRBD) in children are associated with elevated blood pressure during sleep compared with non-snoring control children.

The study, authored by Rosemary Horne, PhD, of Monash University in Melbourne, Australia, focused on 88 children between seven and 13 years of age, including 68 referred for the assessment of SRBD and 20 non-snoring controls. Routine polysomnography, or an overnight sleep test, was performed, and mean arterial pressure was continuously recorded. Children were divided into groups according to obstructive apnea/hypopnea index: control children, primary snoring, mild obstructive sleep apnea (OSA) and moderate/severe OSA.

According to the results, compared with the non-snoring controls, SRBDs of any severity elevate the blood pressure of children during sleep.

"SRBDs are very common in children, occurring in up to 30 percent of children. SRBD ranges in severity from primary snoring to OSA. In adults, SRBD is associated with hypertension and increased risk for cardiovascular disease. These findings highlight the importance of considering the long-term cardiovascular effects of any severity of SRBD in children," said Dr. Horne.

Snoring is a sound made in the upper airway of your throat as you sleep. It normally occurs as you breathe in air. It is a sign that your airway is being partially blocked. The sound is made as the flow of air causes tissue in the back of your throat to vibrate. The sound can come through the nose, the mouth, or both the nose and mouth. The rate of snoring in children is reported to be 10 to 12 percent.

OSA is an SRBD that causes your body to stop breathing during sleep. OSA occurs when the tissue in the back of the throat collapses and blocks the airway. This keeps air from getting into the lungs. OSA occurs in about two percent of young children. It can develop in children at any age, but it is most common in pre-schoolers. OSA often occurs between the ages of three and six years when the tonsils and adenoids are large compared to the throat. OSA appears to occur at the same rate in young boys and girls. OSA also is common in children who are obese, and is more likely to occur in a child who has a family member with OSA.

It is recommended that school-aged children get between 10-11 hours of nightly sleep and children in pre-school between 11-13 hours.


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The above story is based on materials provided by American Academy of Sleep Medicine. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Sleep Medicine. "Sleep-related Breathing Disorders Affect Children's Blood Pressure During Sleep." ScienceDaily. ScienceDaily, 12 June 2008. <www.sciencedaily.com/releases/2008/06/080612070434.htm>.
American Academy of Sleep Medicine. (2008, June 12). Sleep-related Breathing Disorders Affect Children's Blood Pressure During Sleep. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2008/06/080612070434.htm
American Academy of Sleep Medicine. "Sleep-related Breathing Disorders Affect Children's Blood Pressure During Sleep." ScienceDaily. www.sciencedaily.com/releases/2008/06/080612070434.htm (accessed September 17, 2014).

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