Navigation Links
Severe sleep apnea decreases frequency of nightmare recall
Date:2/15/2010

Westchester, Ill. A study in the Feb. 15 issue of the Journal of Clinical Sleep Medicine shows that patients with severe obstructive sleep apnea (OSA) report a significantly lower frequency of nightmares than patients with mild or no sleep apnea, indicating that OSA suppresses the cognitive experience of nightmare recall.

Results show that the percent of participants with frequent nightmare recall decreased linearly as sleep apnea severity increased. Frequent nightmare recall, occurring at least weekly, was reported by 71.4 percent of people who did not have OSA and 43.2 percent of patients with mild OSA, which was defined as an apnea-hypopnea index (AHI) of five to less than 15 breathing pauses per hour of sleep. The rate of frequent nightmare recall decreased to 29.9 percent in patients with moderate OSA (AHI of 15 to less than 30) and 20.6 percent in patients with severe OSA (AHI of 30 or more). Sleep apnea severity in people who reported infrequent nightmare recall (mean AHI of 40.3) was significantly higher than in those who frequently recalled nightmares (mean AHI of 24.6).

According to principal investigator Jim Pagel, M.S., M.D., associate clinical professor at the University of Colorado Medical School system and director of the Sleep Disorders Center of Southern Colorado in Pueblo, the decline in frequency of nightmare recall may be attributed to the sleep fragmentation that is caused by OSA. This leads to a reduction in the amount of rapid eye movement (REM) sleep, which is the sleep stage when nightmares generally occur.

"The results were somewhat surprising, since nightmares are frequently reported by patients with sleep apnea," said Pagel. "It is plausible that patients who successfully utilize continuous positive airway pressure (CPAP) therapy see an increase in the frequency of nightmares, as treatment increases the amount of REM sleep per night."

According to the American Academy of Sleep Medicine, nightmares are coherent dream sequences that seem real and become increasingly more disturbing as they unfold. Emotions usually involve anxiety, fear or terror, and dream content most often focuses on imminent physical danger or other distressing themes. Nightmares may result in post-awakening anxiety and difficulty returning to sleep. Approximately 50 percent to 85 percent of adults report having at least an occasional nightmare, and about two percent to eight percent of the general population have a current problem with nightmares.

This retrospective study involved 393 consecutive patients who were evaluated by overnight polysomnography at the Sleep Disorders Center of Southern Colorado over a two-year period. Their mean age was 50.5 years with a range of 13 to 82 years, and 67 percent of participants were male. The mean AHI was 34.9, indicating a high frequency of severe OSA.

Questions concerning dream and nightmare recall frequency were incorporated into a general sleep questionnaire. Dream and nightmare recall were classified as infrequent when reported once a month or less, or frequent when reported at least weekly. About 52 percent (205 people) reported frequent dream recall, and 34 percent (134 people) reported frequent nightmare recall. Analysis confirmed that dream recall and nightmare recall were not associated.

The authors noted that the study clearly demonstrates that increasingly severe OSA has a much greater negative effect on reported nightmare recall frequency than it does on reported dream recall.


'/>"/>

Contact: Kelly Wagner
kwagner@aasmnet.org
708-492-0930
American Academy of Sleep Medicine
Source:Eurekalert

Related medicine news :

1. Local Blood Supply Impacted by Wednesdays Severe Snow Storm
2. Blacks with MS have more severe symptoms, decline faster than whites, new study shows
3. Brain Damage Seen in People With Severe Sleep Apnea
4. Tylenol May Protect Kidneys After Severe Muscle Damage
5. Study finds reduced brain gray matter concentration in patients with severe obstructive sleep apnea
6. Three-Fourths of Cancer Patients Have Severe Flares of Pain
7. Severe complications of diabetes higher in depressed patients
8. Deep brain stimulation successful for treatment of severely depressive patient
9. Scientists Link Molecule to Severe Swine Flu
10. Introducing D-Psoria, the First Cosmeceutical Products for the Relief of the Redness, Scaling, and Flaking of Severely Damaged Skin
11. Swine Flu Pandemic May Be Less Severe Than Expected
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has released a ... books in the Holy Scriptures, Revelation. The Book of Revelation paints a picture of ... have tossed it off as mere rubbish, but Yisrayl Hawkins says that is because ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Software Development, has been awarded a contract by the Center for Medicare and ... aims to accelerate the enterprise use of Agile methodologies in a consistent and ...
(Date:10/13/2017)... ... ... “America On The Brink”: the Christian history of the United States and the loss ... author, William Nowers. Captain Nowers and his wife, Millie, have six children, ten ... the Navy. Following his career as a naval aviator and carrier pilot, he ...
(Date:10/12/2017)... Francisco, CA (PRWEB) , ... October 12, 2017 ... ... Dr. Cheng, are now treating sleep apnea using cutting-edge Oventus O2Vent ... apnea, a serious sleep disorder characterized by frequent cessation in breathing. Oral appliances ...
(Date:10/12/2017)... ... 2017 , ... The company has developed a suite of ... authorities worldwide. From Children’s to Adults 50+, every formula has been developed by ... , These products are also: Gluten Free, Non-GMO, Vegan, Soy Free, Non-Dairy*, Preservative ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... , Oct. 2, 2017  Eli Lilly and ... financial results for the third quarter of 2017 on ... conference call on that day with the investment community ... The conference call will begin at 9 ... can access a live webcast of the conference call ...
(Date:9/28/2017)... 28, 2017 Hill-Rom Holdings, Inc. (NYSE: HRC), ... call and webcast on Friday, November 3, 2017, beginning ... ending at approximately 8:30 a.m. (CDT) / 9:30 a.m. ... 2017 financial performance and guidance for 2018, Hill-Rom executives ... enhance operational performance, and long-range financial outlook through 2020. ...
(Date:9/25/2017)... 25, 2017   Montrium , an industry ... today—from the IQPC Trial Master Files & Inspection ... that EastHORN Clinical Services has selected eTMF ... TMF management. EastHORN, a leading European contract research ... increase transparency to enable greater collaboration with sponsors, ...
Breaking Medicine Technology: