Pain patients at risk for sleep apneaSeptember 07, 2007Opioids associated with increased apnea risk Opioid-based pain medications may cause sleep apnea, according to an article in the September issue of Pain Medicine, the journal of the American Academy of Pain Medicine. "We found that sleep-disordered breathing was common when chronic pain patients took prescribed opioids," explains lead author Lynn R. Webster, MD, from Lifetree Clinical Research and Pain Clinic in Salt Lake City, Utah. "We also found a direct dose-response relationship between central sleep apnea and methadone and benzodiazepines, an association which had not been previously reported." Opioids, effective medications for chronic pain treatment, are often used for cancer patients, but are now gaining widespread acceptance as long-term therapy for chronic pain unrelated to cancer. An increasing number of patients with nonmalignant chronic pain are receiving around-the-clock pain relief through opioid therapy. The researchers studied sleep lab data on 140 patients taking around-the-clock opioid therapy for chronic pain to assess the potential and prevalence sleep apnea in opioid treated pain patients. All patients were on opioid therapy for at least six months with stable dosing for at least four weeks. The investigators say that their results show a higher than expected prevalence of sleep disordered breathing in opioid treated chronic pain patients. Obstructive and central sleep apnea syndromes occurred in the studied population at a far greater rate (75%) than is observed in the general population, where obstructive sleep apnea is known to be underdiagnosed but has been estimated at roughly 2% to 4%. Central sleep apnea is estimated at 5% in people older than 65 years and from 1.5% to 5% in men less than 65 years old. People who stop breathing during sleep because of faulty brain control have central sleep apnea as opposed to obstructive apnea, which is triggered by obesity and other health problems and accompanied by loud snoring. The investigators comment that the absence of crescendo-decrescendo breath size commonly associated with central sleep apnea suggests that the central sleep apnea mechanism is different for people taking opioids than the general public. They suggest it could be related to the direct effects of opioids on the part of the brain that controls respiration. The authors also note that if opioid medications increase sleep apnea risk as their research suggests, then chronic pain patients who are prescribed opioids have a higher risk of morbidity and mortality. "The challenge is to monitor and adjust medications for maximum safety, not to eliminate them at the expense of pain management," Dr. Webster concludes. "The recent flurry of news reports of deaths associated with methadone use, and the synergy of opioids and benzodiazepines in causing respiratory depression, highlight the importance of Dr. Webster's research. Clearly we need more studies of these mechanisms as well as ways of identifying those at risk. Doctors and patients who are considering opioid medication for pain control, must balance this risk against the potential for improved quality of life," comments Rollin M. Gallagher, MD, Editor-in-Chief of Pain Medicine. American Academy of Pain Medicine |
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| Related Sleep Apnea Current Events and Sleep Apnea News Articles Fighting Sleep, Penn Researchers Reverse the Cognitive Impairment Caused By Sleep Deprivation A research collaboration led by biologists and neuroscientists at the University of Pennsylvania has found a molecular pathway in the brain that is the cause of cognitive impairment due to sleep deprivation. Improved diet and exercise alone unlikely to cure obstructive sleep apnea in obese patients A study in the Oct. 15 issue of the Journal of Clinical Sleep Medicine found that while a strict diet and exercise program may benefit obese patients with mild to moderate obstructive sleep apnea (OSA), it is unlikely to eliminate the condition. Surgery is an option for some patients hoping to get a good night's rest According to research recently published by an Oregon Health & Science University scientist, a form of surgery called uvopalatopharyngoplasty is effective for treating certain patients who suffer from sleep apnea, one of the most common sleep disorders. Being overweight super-sizes both risk and consequences of sleep-disordered breathing Overweight individuals are not just at greater risk of having sleep-disordered-breathing (SDB), they are also likely to suffer greater consequences, according to new research. Minimally invasive procedure effective for treating snoring Radiofrequency ablation, a procedure that uses heat to shrink the tissue of the soft palate, is an effective and minimally invasive procedure that can be used to treat patients who snore. Many patients with sleep apnea also suffer from GI tract conditions Patients who suffer from obstructive sleep apnea (OSA) also tend to have additional gastrointestinal (GI) tract conditions, such as gastric reflux and hiatal hernia, which form at the opening in your diaphragm where your food pipe (esophagus) joins your stomach. Radiofrequency energy technique as effective as tonsillectomy surgery Radiofrequncy-tonsillotomy, which enables surgeons to reduce the size of the tonsillar tissue instead of removing the tonsils entirely, seems to be an effective and safe method of treating children with symptoms of enlarged tonsils. Stress, fatigue plague patients with allergic rhinitis and obstructive sleep apnea Patients who suffer from both allergic rhinitis and obstructive sleep apnea (OSA) may experience escalated symptoms of stress and fatigue. Severe sleep apnea tied to increased risk of death Moderate to severe obstructive sleep apnea is associated with an increased risk of death from any cause in middle-aged adults, especially men, according to new results from a landmark study supported by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health (NIH). Obstructive sleep apnea is prevalent in adults with Down syndrome A study in the Aug. 15 issue of the Journal of Clinical Sleep Medicine shows that adults with Down syndrome also frequently suffer from obstructive sleep apnea (OSA). More Sleep Apnea Current Events and Sleep Apnea News Articles |
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