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:2/24/2017)... ... February 24, 2017 , ... Rosica Communications, a national ... leadership , media relations, social media, content marketing and SEO, is now offering ... Act-On, an intuitive marketing automation platform. , Rosica will now offer the platform ...
(Date:2/24/2017)... , ... February 24, 2017 , ... ... Charlevoix, once again hosted their Military Wedding Giveaway, with the winning couple announced ... Castle Farms with services generously donated from local vendors: A Matter of Taste, ...
(Date:2/23/2017)... ... February 23, 2017 , ... On February 22, 2017 ... letter to withdraw previous guidance issued by the Obama Administration requiring schools ... in May 2016 by the Obama Administration came in response to a growing ...
(Date:2/23/2017)... Miami, FL (PRWEB) , ... February 23, 2017 ... ... largest non-profit organization devoted exclusively to funding innovative lymphoma research and serving the ... services – will return to the La Gorce Country Club in Miami Beach ...
(Date:2/23/2017)... Hill, NC (PRWEB) , ... February 23, 2017 , ... ... Platinum Sponsor for ACPA’s 74th Annual Meeting. KLS is a longtime supporter of ... 2017 as an exhibitor and Platinum Sponsor," said Dr. Bob Havlik, 2017 ACPA President. ...
Breaking Medicine News(10 mins):
(Date:2/23/2017)... Regulus Therapeutics Inc . (Nasdaq: RGLS), ... innovative medicines targeting microRNAs, today announced it will release ... Thursday, March 2, 2017 after the market closes. ... on March 2, 2017 at 5:00 p.m. Eastern Time ... results and provide a general business update.  A live ...
(Date:2/23/2017)... , Feb 23, 2017 Research and Markets ... & Trends - Industry Forecast to 2025" report to their ... The ... around 6.9% over the next decade to reach approximately $47.6 billion ... estimates and forecasts for all the given segments on global as ...
(Date:2/23/2017)... WASHINGTON , Feb. 23, 2017  As ... tips.  In addition, the Company is helping people ... through its customized prescription savings programs in all ... Florida Prescription Assistance Program  and  California Prescription Assistance ... tips from Columbia University for nutritious ...
Breaking Medicine Technology: