Children with sleep-related breathing disorders appear to sleep better about 2½ years after they had surgery to remove their tonsils and adenoids (glands in the back of the throat) than they did before the procedure. The same children did not sleep as well at any point than they did six months after the surgery, though, according to a report in the July, 2009 issue of Archives of Otolaryngology–Head & Neck Surgery.
Initial improvements in their behavior were maintained except when measured by an index of attention-deficit/hyperactivity disorder (ADHD) symptoms.
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Increasingly severe sleep-related breathing disorders in older men appear to be associated with a greater risk of abnormal heart rhythms (arrhythmias), according to a report in the June 22, 2009, issue of Archives of Internal Medicine, one of the JAMA/Archives journals. In addition, different types of breathing problems appear more closely associated with different categories of arrhythmia.
Sleep-disordered breathing is a common condition, according to background information in the article. It causes a number of physiologic events that could be stressful to the cardiovascular system, including inadequate blood oxygen levels at night and activation of the sympathetic nervous system (associated with the body’s fight-or-flight response).
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Individuals with sleep-related breathing disorders appear to burn more calories when resting as their conditions become more severe, according to a report in Archives of Otolaryngology–Head & Neck Surgery.
Sleep-related breathing disorders include snoring, sleep apnea, and other conditions in which airways are partially or completely obstructed during sleep. “Obesity is a major risk factor for the development of sleep-disordered breathing, and changes in body weight are associated with changes in sleep-disordered breathing severity,” the authors wrote.
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In the first study to use continuous measurements of blood pressure during overnight sleep, a research abstract presented 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.
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