Navigation Links
Swallowing-Breathing Dysfunction Worsens Lung Disorder
Date:3/26/2009

Timing of each altered in people with chronic obstructive pulmonary disease, study finds

THURSDAY, March 26 (HealthDay News) -- A disrupted breathing-swallowing pattern may explain why people with moderate to severe chronic obstructive pulmonary disease (COPD) are at increased risk for aspiration pneumonia, researchers report.

Patients with moderate to severe COPD show alterations between normal breathing and swallowing patterns (during eating) even when they're not experiencing exacerbations, according to the study by Roxann Diez Gross and colleagues at the University of Pittsburgh.

"In healthy subjects, the usual pattern is to time swallows to occur during early to mid exhalation. Healthy individuals also nearly exclusively follow each swallow with exhalation. This pattern assures that there is sufficient air pressure below the vocal folds during a swallow and prevents inhalation of food residue after swallowing," Gross said in the news release.

"In contrast, in COPD patients, we saw that several aspects of their swallowing and breathing timing were disrupted such that swallows were occurring during inhalation or were followed by inhalation," she said. "COPD patients also swallowed more often at the end of exhalation at lower lung volumes."

COPD is a progressive, destructive disease of the lungs, usually brought on by smoking. There is no known cure. Symptoms include restricted breathing, secretion of mucus, oxidative stress and airway inflammation.

It had been known that COPD patients "exhibited decoupling of the breathing-swallowing pattern of saliva during exacerbations," according to a news release about the study. But this is the first study to detail to what extent, if any, disruptions in breathing and swallowing coordination occur during normal eating in COPD patients even when they're not experiencing exacerbations.

The study included 25 patients with moderate to severe COPD and 25 healthy people. All the participants ate nine wafer cookies and 10 teaspoons of pudding to determine how well they swallowed sold and semi-solid food. There was a marked difference between the two groups, the researchers found.

The respiratory tract may be thrown out of balance by the respiratory burden imposed by COPD, Gross explained.

"Because breathing and eating share the structures of the upper airway, precise coordination is needed to prevent food material from entering the airway while eating," she said. "In patients with COPD, the competition for the upper airway may cause the respiratory drive to override swallowing function and disrupt the normal patterning. The lungs of COPD patients have less elasticity than those of healthy individuals and this may also play a role in swallowing safety."

The study appears in the first April issue of the American Journal of Respiratory and Critical Care Medicine.

More information

The American Academy of Family Physicians has more about COPD.



-- Robert Preidt



SOURCE: American Thoracic Society, news release, March 26, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. German Medical Advancement Reflects Major Improvement in Individuals with Common and Chronic Illnesses Related to Immune System Dysfunction
2. Motorcycle Seats NOT The Cause of Impotence or Erectile Dysfunction for Bikers
3. Rapid Generic Erosion of Branded Agents, Including Market-Leading Viagra, Will Cause Sales of Erectile Dysfunction Drugs to Remain Flat Over the Next Decade
4. Warner Chilcott and Dong-A Sign U.S. License Agreement For Erectile Dysfunction Treatment
5. Despite Sagging Economy, Viamedic Reports Solid Online Sales for Erectile Dysfunction Drugs
6. Hispanic Men Face Elevated Risk of Erectile Dysfunction
7. Causes for sexual dysfunction change as people age
8. Researchers Examine Safety of Internet Prescriber Service Providing Erectile Dysfunction Medications
9. Researchers examine safety of Internet prescriber service providing erectile dysfunction medications
10. Erectile dysfunction drugs allowed more chemotherapy to reach brain tumors in laboratory study
11. Schizophrenia linked to dysfunction in molecular brain pathway activated by marijuana
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Swallowing-Breathing Dysfunction Worsens Lung Disorder
(Date:12/6/2016)... ... , ... Keeping Gift Season Safe, In a season stacked with gift-giving opportunities, ... their recipients. This is the idea behind Safe Toys and Gifts Month, which sets ... make good gifts for children. For companies that produce goods that fall into this ...
(Date:12/6/2016)... Park, KS (PRWEB) , ... December 06, 2016 , ... ... retailers of Mobility Scooters . , Mobility Scooters give freedom to people who ... balance problems. Still others may be facing a long period of rehabilitation after an ...
(Date:12/6/2016)... ... December 06, 2016 , ... U.S. Security Associates (USA) was ... for their industry leading training methods that engage their associates and link their ... global elite in employer-sponsored training and development programs. , “The 2017 Training Top ...
(Date:12/5/2016)... ... 2016 , ... Edward Buckingham MD , and the ... the newest Sciton laser in January 2017. The Halo is the first and ... wavelengths for exceptional results. Outperforming more traditional lasers, the innovative Halo automatically customizes ...
(Date:12/5/2016)... ... 2016 , ... SyncDog, Inc., the leading ISV for mobile ... online tech news platform connecting technology innovators with news, experience, and knowledge breaking ... of enterprise mobility security today, and how the SyncDog SentinelSecure™ product line protects ...
Breaking Medicine News(10 mins):
(Date:12/5/2016)... and BOCA RATON, Fla. ... Institute for the Commercialization of Public Research ... finalized a funding agreement SegAna, LLC, an ... at University of Central Florida. The Florida Institute ... and bridges early funding gaps for companies spinning ...
(Date:12/5/2016)... India , December 5, 2016 According to a ... Type and by Application - Global Opportunity Analysis and Industry Forecast, 2014 - ... is expected to reach $5,255 million by 2022, growing at a CAGR of ... with more than four-fifths share. Continue Reading ... ...
(Date:12/5/2016)... -- Wellbridge Health and Gateway Health proudly announce a dynamic collaboration ... Medicaid plan members with specific high risk needs. ... this group of consumers, Wellbridge combines technology and population expertise ... into members, daily behaviors and lifestyle. ... , , ...
Breaking Medicine Technology: