Featured Research

from universities, journals, and other organizations

Sleep apnea common after acute respiratory failure

Date:
May 18, 2014
Source:
American Thoracic Society (ATS)
Summary:
Clinically important sleep apnea is common among survivors of acute respiratory failure, according to a new study. “Insomnia is a frequent complaint among survivors of critical illness,” said one researcher. “We examined a small cohort of survivors of acute respiratory failure to understand modifiable contributors to insomnia, including sleep apnea.”

Clinically important sleep apnea is common among survivors of acute respiratory failure, according to a new study presented at the 2014 American Thoracic Society International Conference.

Related Articles


“Insomnia is a frequent complaint among survivors of critical illness,” said Dr. Elizabeth Parsons, MD, MSc, of the Division of Pulmonary & Critical Care Medicine at the University of Washington in Seattle. “We examined a small cohort of survivors of acute respiratory failure to understand modifiable contributors to insomnia, including sleep apnea.”

The study involved 21 patients with acute respiratory failure, defined as an acute need for at least 48 hours of mechanical ventilation. Assessment included the Insomnia Severity Index and in-home level II overnight polysomnography three months after hospital discharge. Sleep-disordered breathing was assessed with the Apnea Hypopnea Index (AHI) and the Respiratory Distress Index (RDI). The AHI measures the average number of apneas (breathing cessations) and hypopneas (partial obstructions) per hour. The Respiratory Distress Index (RDI) measures the average number of respiratory disturbances per hour (apneas, hypopneas, and milder events called respiratory effort–related arousals). An RDI of 15 or greater was considered clinically relevant to sleep quality and daytime function. An AHI of 15 or greater may be a risk factor for cardiovascular morbidity.

Among the 14 patients who underwent polysomnography, the majority met criteria for clinically-relevant sleep apnea, with 13 having an RDI of 15 or greater and 10 having an AHI of 15 or greater. Mean RDI was 38 and mean AHI was 29. Oxygen desaturations were generally mild, with an average 3% oxygen desaturation index of 8 (number of times per hour that oxygen level drops by 3 percent or more). Insomnia severity did not significantly correlate with the presence of sleep-disordered breathing.

“The incidence and severity of sleep apnea we observed among survivors of acute respiratory failure, if replicated in larger studies, are cause for concern,” said Dr. Parsons. “Some patients had clinically significant sleep apnea despite lack of sleep complaints. Evaluating and treating sleep apnea may significantly impact the health and well-being of these patients.”

“It is important to note that trauma was the inciting event for acute respiratory failure in 57% of our tested subjects. By subject report, 29% were actively taking an opiate pain medication at the time of testing. Opiates can worsen sleep apnea by reducing upper airway tone and central respiratory drive. Our results suggest that sleep apnea is common after acute respiratory failure, with central-acting medications serving as one potential contributor.”


Story Source:

The above story is based on materials provided by American Thoracic Society (ATS). Note: Materials may be edited for content and length.


Cite This Page:

American Thoracic Society (ATS). "Sleep apnea common after acute respiratory failure." ScienceDaily. ScienceDaily, 18 May 2014. <www.sciencedaily.com/releases/2014/05/140518164103.htm>.
American Thoracic Society (ATS). (2014, May 18). Sleep apnea common after acute respiratory failure. ScienceDaily. Retrieved January 25, 2015 from www.sciencedaily.com/releases/2014/05/140518164103.htm
American Thoracic Society (ATS). "Sleep apnea common after acute respiratory failure." ScienceDaily. www.sciencedaily.com/releases/2014/05/140518164103.htm (accessed January 25, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, January 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Disneyland Measles Outbreak Spreads To 5 States

Disneyland Measles Outbreak Spreads To 5 States

Newsy (Jan. 24, 2015) Much of the Disneyland measles outbreak is being blamed on the anti-vaccination movement. The CDC encourages just about everyone get immunized. Video provided by Newsy
Powered by NewsLook.com
Growing Measles Outbreak Worries Calif. Parents

Growing Measles Outbreak Worries Calif. Parents

AP (Jan. 23, 2015) Public health officials are rushing to contain a measles outbreak that has sickened 70 people across 6 states and Mexico. The AP&apos;s Raquel Maria Dillon has more. (Jan. 23) Video provided by AP
Powered by NewsLook.com
Smart Wristband to Shock Away Bad Habits

Smart Wristband to Shock Away Bad Habits

Reuters - Innovations Video Online (Jan. 23, 2015) A Boston start-up is developing a wristband they say will help users break bad habits by jolting them with an electric shock. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
This Is What It's Like To Date A Med Student

This Is What It's Like To Date A Med Student

BuzzFeed (Jan. 23, 2015) Dating is now speed-dating... or studying. Video provided by BuzzFeed
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