Navigation Links
Swallowing-Breathing Dysfunction Worsens Lung Disorder

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:
Related Image:
Swallowing-Breathing Dysfunction Worsens Lung Disorder
(Date:11/30/2015)... Rosa, Calif. (PRWEB) , ... November 30, 2015 ... ... Management and Analytics for the last 15 years, announced today that Michigan-based Family ... A provider of care for over 45 years, FHC was awarded the largest ...
(Date:11/30/2015)... , ... November 30, 2015 ... ... new additions to its industry-leading suite of automated breast density assessment and ... America (RSNA) meeting, November 29-December 4, 2015 (South Hall booth #2377). Volpara’s ...
(Date:11/30/2015)... ... November 30, 2015 , ... Sikka Software announced today that ... Their Ecosystem empowers dentists to make complex business decisions by providing the tools and ... a free fee survey with 10 procedures customized by zip code. , The ...
(Date:11/30/2015)... , ... November 30, 2015 , ... ... Laser Center is one of a select few plastic surgeons in the New ... fat removal. , SculpSure™ is the world’s first heat-induced laser treatment for fat ...
(Date:11/30/2015)... Atlanta, Georgia (PRWEB) , ... November 30, 2015 ... ... training for healthcare professionals worldwide today released the results of a survey of ... Middle East and Africa found a growing global demand for high quality online ...
Breaking Medicine News(10 mins):
(Date:11/29/2015)...  Strengthening its leadership in connected healthcare informatics, ... IntelliSpace Portal 8.0 , the latest edition of ... helps radiologists detect, diagnose and follow-up on treatment of ... North America Annual Meeting (RSNA) in ... the changing demands in radiology that result from an ...
(Date:11/29/2015)... -- The GE Health Cloud 1 was unveiled today at ... North America (RSNA) meeting in Chicago ... cloud ecosystem and its applications will connect radiologists and clinicians ... teams – both inside and outside the hospital setting. ... "As the digital industrial leader, we are betting big on ...
(Date:11/27/2015)... , Pays-Bas, November 27, 2015 ... au traitement photodynamique au Bremachlorin contre le cancer ... approche consistant à combiner l,immunothérapie au traitement photodynamique ... --> Une nouvelle approche consistant ... contre le cancer avancé.    ...
Breaking Medicine Technology: