Featured Research

from universities, journals, and other organizations

Memory Improves After Sleep Apnea Therapy

Date:
December 13, 2006
Source:
American College of Chest Physicians
Summary:
A new study in the December issue of the journal CHEST shows that patients with obstructive sleep apnea (OSA) may improve their memory by using continuous positive airway pressure (CPAP).

Patients with obstructive sleep apnea (OSA) may improve their memory by using continuous positive airway pressure (CPAP). A new study published in the December issue of CHEST, the peer-reviewed journal of the American College of Chest Physicians (ACCP), shows that the majority of patients with OSA, who were memory-impaired prior to treatment, demonstrated normal memory performance after 3 months of optimal CPAP use. The study also showed that memory improvement varied based on CPAP adherence. Patients who used CPAP for at least 6 hours a night were nearly eight times as likely to demonstrate normal memory abilities compared with patients who used CPAP for 2 or fewer hours a night.

Related Articles


"Patients with OSA often complain of daily forgetfulness, eg, losing their keys, forgetting phone numbers, or forgetting to complete daily tasks," said senior study author Mark S. Aloia, PhD, National Jewish Medical and Research Center in Denver, CO, who conducted his research while at Brown University Medical School, Providence, RI. "Where memory is concerned, we may have the ability to reverse some of the impairments by providing effective and consistent use of CPAP treatment."

Dr. Aloia and colleagues examined the degree to which varying levels of CPAP adherence improved memory in 58 memory-impaired patients with clinically diagnosed OSA. All patients underwent cognitive evaluation involving verbal memory testing prior to initiation of CPAP and at a 3-month follow-up visit. Patients were prescribed CPAP machines, and adherence was covertly monitored using internal microprocessors within each device. After treatment, patients were divided into three groups based on their 3-month CPAP adherence: (1) poor users (n=14), patients who averaged fewer than 2 hours/night of CPAP use; (2) moderate users (n=25), patients who averaged 2 to 6 hours/night of CPAP use; and (3) optimal users (n=19), patients who averaged more than 6 hours/night of CPAP use.

At baseline, all patients were found equally impaired in verbal memory, with the average verbal memory score being approximately 2 SD below the mean for all participants. Following 3 months of CPAP treatment, 21 percent of poor users, 44 percent of moderate users, and 68 percent of optimal users demonstrated normal memory performance. Compared with poor users, optimal users of CPAP were nearly eight times as likely to demonstrate normal memory abilities. Overall, the average verbal memory score for all patients improved approximately 1 SD.

"Moderate use of CPAP may help, but it might not allow patients to reach their full potential recovery where memory is concerned, especially if memory is impaired at baseline," said Dr. Aloia. "For patients with OSA, the more regularly and consistently they use CPAP, the better off they will be." Dr. Aloia believes that getting patients to use CPAP at least 6 hours a night could be a challenge for physicians. "Our findings also suggest that this optimal level of CPAP adherence is uncommon following 3 months of treatment," said Dr. Aloia. "We need to find ways of encouraging patients to use their treatment all night, every night in order to optimize treatment response."

"CPAP has proven to be an effective treatment for patients with OSA, yet adherence to treatment remains poor," said Mark J. Rosen, MD, FCCP, President of the American College of Chest Physicians. "Physicians should educate their patients with OSA about the importance of using CPAP consistently and discuss ways to overcome obstacles to adherence."

CHEST is a peer-reviewed journal published by the ACCP. It is available online each month at http://www.chestjournal.org. The ACCP represents 16,500 members who provide clinical respiratory, sleep, critical care, and cardiothoracic patient care in the United States and throughout the world. The ACCP's mission is to promote the prevention and treatment of diseases of the chest through leadership, education, research, and communication. For more information about the ACCP, please visit the ACCP Web site at http://www.chestnet.org.


Story Source:

The above story is based on materials provided by American College of Chest Physicians. Note: Materials may be edited for content and length.


Cite This Page:

American College of Chest Physicians. "Memory Improves After Sleep Apnea Therapy." ScienceDaily. ScienceDaily, 13 December 2006. <www.sciencedaily.com/releases/2006/12/061212091922.htm>.
American College of Chest Physicians. (2006, December 13). Memory Improves After Sleep Apnea Therapy. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2006/12/061212091922.htm
American College of Chest Physicians. "Memory Improves After Sleep Apnea Therapy." ScienceDaily. www.sciencedaily.com/releases/2006/12/061212091922.htm (accessed December 22, 2014).

Share This


More From ScienceDaily



More Mind & Brain News

Monday, December 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Brain-Dwelling Tapeworm Reveals Genetic Secrets

Brain-Dwelling Tapeworm Reveals Genetic Secrets

Reuters - Innovations Video Online (Dec. 22, 2014) Cambridge scientists have unravelled the genetic code of a rare tapeworm that lived inside a patient's brain for at least four year. Researchers hope it will present new opportunities to diagnose and treat this invasive parasite. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Prenatal Exposure To Pollution Might Increase Autism Risk

Prenatal Exposure To Pollution Might Increase Autism Risk

Newsy (Dec. 18, 2014) Harvard researchers found children whose mothers were exposed to high pollution levels in the third trimester were twice as likely to develop autism. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins