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:6/27/2016)... ... ... TopConsumerReviews.com recently awarded their highest five-star rating to Best Buy Eyeglasses, an ... United States and Canada wear eyeglasses. Once considered to be a purely functional part ... fashion statement. Even celebrities use glasses as a way of creating an iconic image—like ...
(Date:6/26/2016)... ... ... Brent Kasmer, a legally blind and certified personal trainer is helping to develop a weight ... app plans to fix the two major problems leading the fitness industry today:, ... program , They don’t eliminate all the reasons people quit their exercise program ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX users ... - CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms over 1,300 ... Pro X . Simply select a ProHand generator and drag it above media or ...
(Date:6/25/2016)... ... ... Conventional wisdom preaches the benefits of moderation, whether it’s a matter of indulgence ... high can result in disappointment, perhaps even self-loathing. However, those who set the bar ... from PsychTests.com reveals that behind the tendency to set low expectations is ...
(Date:6/24/2016)... ... June 24, 2016 , ... The Pulmonary Hypertension ... that it will receive two significant new grants to support its work to ... its 25th anniversary by recognizing patients, medical professionals and scientists for their work ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016 Research and Markets has ... Companion Diagnostic Tests" report to their offering. ... Diagnostics The World Market for Companion Diagnostics ... diagnostics. Market analysis in the report includes the following: ... Vitro Diagnostic Kits) by Region (N. America, EU, ROW), 2015-2020 ...
(Date:6/23/2016)... HOUSTON , June 23, 2016  MedSource ... platform as its e-clinical software solution of choice.  ... the best possible value to their clients by ... nowEDC.  The preferred relationship establishes nowEDC as the ... pricing for MedSource,s full-service clients.  "nowEDC has long ...
(Date:6/23/2016)... Roche (SIX: RO, ROG; OTCQX: RHHBY) announced that it ... (procalcitonin) assay as a dedicated testing solution for people ... Roche is the first IVD company in the U.S ... assessment and management. PCT is a sepsis-specific ... blood can aid clinicians in assessing the risk of ...
Breaking Medicine Technology: