A study (ID# 0187) being presented as an oral presentation this morning at SLEEP 2008 shows that sleep disordered breathing of any level of severity is associated with increased levels of blood pressure in children.
The Australian study involved 88 children between the ages of seven and 13 years. Twenty of these children were non-snoring controls who were recruited from the community.
Mean arterial pressure (MAP) was lower in the control group both before falling asleep and during sleep. MAP was elevated during sleep in children with either primary snoring, mild obstructive sleep apnea (OSA), or moderate to severe OSA.
More information about obstructive sleep apnea in children is available from the American Academy of Sleep Medicine at http://www.sleepeducation.com/Disorder.aspx?id=71.
Showing posts with label heart. Show all posts
Showing posts with label heart. Show all posts
Thursday, June 12, 2008
Wednesday, June 11, 2008
Insomnia Linked to Increased Risk of High Blood Pressure
“The medical impact of chronic insomnia has been underestimated,” said researcher Alexandros Vgontzas at the conclusion of his oral presentation this afternoon at SLEEP 2008.
In a study (ID# 685) of 1,741 men and women from Central Pennsylvania, Vgontzas and colleagues found that having insomnia and a short sleep duration of less than or equal to five hours increased the risk of high blood pressure by five times. Having insomnia and sleeping for five to six hours made individuals three times more likely to have high blood pressure. Without a complaint of insomnia, short sleep duration of less than or equal to five hours increased the risk of high blood pressure by only 1.5 times.
Sleep time was recorded during one night in a sleep laboratory. “Insomnia” was defined as a complaint of insomnia for more than or equal to one year.
Vgontzas, of Hershey Medical Center in Hershey, Pa., indicated that these results show that insomnia with a short sleep duration may raise the risk of high blood pressure at a rate that is similar to obstructive sleep apnea.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
In a study (ID# 685) of 1,741 men and women from Central Pennsylvania, Vgontzas and colleagues found that having insomnia and a short sleep duration of less than or equal to five hours increased the risk of high blood pressure by five times. Having insomnia and sleeping for five to six hours made individuals three times more likely to have high blood pressure. Without a complaint of insomnia, short sleep duration of less than or equal to five hours increased the risk of high blood pressure by only 1.5 times.
Sleep time was recorded during one night in a sleep laboratory. “Insomnia” was defined as a complaint of insomnia for more than or equal to one year.
Vgontzas, of Hershey Medical Center in Hershey, Pa., indicated that these results show that insomnia with a short sleep duration may raise the risk of high blood pressure at a rate that is similar to obstructive sleep apnea.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
Children Who Snore Have Higher Heart Rates
A study (ID# 0253) being presented as a poster presentation this morning at SLEEP 2008 shows that snoring has a significant impact on the cardiovascular functioning of children during sleep.
The study involved 40 children with an average age of 8 years. Children with severe obstructive sleep apnea (OSA) had the highest average heart rate of 92 beats per minute (bpm). Children with primary snoring had an average heart rate of 82 bpm, which was higher than children with moderate OSA (76 bpm) and children with mild OSA (74 bpm). The heart rate of matched controls was 71 bpm.
The abstract authors conclude that these results challenge the notion that snoring is harmless.
According to the American Academy of Sleep Medicine, the incidence of snoring in children is reported to be 10 percent to 12 percent.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
The study involved 40 children with an average age of 8 years. Children with severe obstructive sleep apnea (OSA) had the highest average heart rate of 92 beats per minute (bpm). Children with primary snoring had an average heart rate of 82 bpm, which was higher than children with moderate OSA (76 bpm) and children with mild OSA (74 bpm). The heart rate of matched controls was 71 bpm.
The abstract authors conclude that these results challenge the notion that snoring is harmless.
According to the American Academy of Sleep Medicine, the incidence of snoring in children is reported to be 10 percent to 12 percent.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
Tuesday, June 10, 2008
Day Two of SLEEP 2008 Begins with a Focus on Heart Health
The second day of SLEEP 2008 begins with three symposia, one of which focuses on the impact that sleep-disordered breathing has on heart health. The symposium is entitled, “Sleep Disordered Breathing as a Cardiovascular Risk Factor: An Epidemiological Perspective from the Sleep Heart Health Study.”
The ongoing Sleep Heart Health Study, which is sponsored by the National Heart, Lung, and Blood Institute, has contributed significantly to the scientific data showing that sleep-disordered breathing may increase the risk for high blood pressure and cardiovascular diseases such as coronary artery disease and stroke.
According to the NHBI, the study has been renewed several times since it began in 1994, allowing for the collection of more data and follow up. The estimated study completion date is August 2008.
The chair of the symposium is Dr. Stuart Quan of the University of Arizona, one of the principal investigators working on the multi-site study. Dr. Quan is a past president of the American Academy of Sleep Medicine and the editor of the Journal of Clinical Sleep Medicine.
He will be joined by four other experts who will make presentations about the relationship between sleep-disordered breathing and cardiovascular disease, stroke, cardiac arrhythmia and mortality.
The ongoing Sleep Heart Health Study, which is sponsored by the National Heart, Lung, and Blood Institute, has contributed significantly to the scientific data showing that sleep-disordered breathing may increase the risk for high blood pressure and cardiovascular diseases such as coronary artery disease and stroke.
According to the NHBI, the study has been renewed several times since it began in 1994, allowing for the collection of more data and follow up. The estimated study completion date is August 2008.
The chair of the symposium is Dr. Stuart Quan of the University of Arizona, one of the principal investigators working on the multi-site study. Dr. Quan is a past president of the American Academy of Sleep Medicine and the editor of the Journal of Clinical Sleep Medicine.
He will be joined by four other experts who will make presentations about the relationship between sleep-disordered breathing and cardiovascular disease, stroke, cardiac arrhythmia and mortality.
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