Featured Research

from universities, journals, and other organizations

Struggling for breath: Videogame technology documents abnormal breathing patterns in patients with sunken chest

Date:
October 13, 2010
Source:
Eastern Virginia Medical School
Summary:
Patients with a common chest deformity known as sunken chest exhibit abnormal breathing patterns. The findings were the result of a side-by-side comparison of patients with normal chests and patients who suffer from the chest wall deformity known as pectus excavatum.

Patients with a common chest deformity known as sunken chest exhibit dysfunctional chest wall motion, a finding that may explain routine reports of exercise intolerance pectus patients, according to a study presented at the American Academy of Pediatrics (AAP) in San Francisco.

Researchers at Virginia's Children's Hospital of The King's Daughters (CHKD) and Eastern Virginia Medical School (EVMS) used optoelectronic plethysmography to analyze chest wall movement in patients with normal chests and patients who suffer from the chest wall deformity formally known as pectus excavatum.

The patients with pectus excavatum had less chest wall motion around the deformity and appeared to compensate by drawing in more air with their abdominal muscles.

"We believe these findings may explain the complaints of shortness of breath and easy fatigability of patients with non-corrected pectus excavatum," said CHKD pediatric surgeon Robert Obermeyer, MD, an assistant professor at EVMS. "Essentially, these patients are working harder to get the same amount of breath."

Pectus excavatum results from abnormal growth of the cartilage at the breastbone, causing an indentation. Often described as sunken or funnel chest, pectus excavatum, occurs in one in every 1,000 children and can range from mild to severe.

In the past, pectus excavatum was described as cosmetic, but pectus patients routinely complain about difficulty breathing, especially during exercise.

While static airflow measures have failed to document significantly decreased air flow, the study presented at the APP demonstrates that pectus patients must use different muscles to achieve the same level of air flow.

Based on video game technology, optoelectronic plethysmography helps create realistic animated figures by using reflective markers on actors to capture the movement of arms, legs, hands and details as fine as the movement of facial features.

For the pectus study, 89 reflective markers were placed on 119 research subjects, including 64 with pectus excavatum.

Chest wall movement was recorded by eight infrared cameras as the subjects breathed. Pattern-recognition software computed the three-dimensional coordinates of each reflective marker, capturing the movement of the chest wall.

In patients with pectus excavatum, the movement of the chest wall near the deformity decreased as the abdominal efforts increased.

"This is likely to be an attempt to compensate for the dysfunction of the upper chest wall motion," said Dr. Obermeyer.

Future research will use optoelectronic plethysmography to determine if the chest wall movement normalizes after correction of the defect.


Story Source:

The above story is based on materials provided by Eastern Virginia Medical School. Note: Materials may be edited for content and length.


Cite This Page:

Eastern Virginia Medical School. "Struggling for breath: Videogame technology documents abnormal breathing patterns in patients with sunken chest." ScienceDaily. ScienceDaily, 13 October 2010. <www.sciencedaily.com/releases/2010/10/101012095229.htm>.
Eastern Virginia Medical School. (2010, October 13). Struggling for breath: Videogame technology documents abnormal breathing patterns in patients with sunken chest. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2010/10/101012095229.htm
Eastern Virginia Medical School. "Struggling for breath: Videogame technology documents abnormal breathing patterns in patients with sunken chest." ScienceDaily. www.sciencedaily.com/releases/2010/10/101012095229.htm (accessed July 25, 2014).

Share This




More Health & Medicine News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
Powered by NewsLook.com
Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
Can Watching TV Make You Feel Like A Failure?

Can Watching TV Make You Feel Like A Failure?

Newsy (July 24, 2014) A study by German researchers claims watching TV while you're stressed out can make you feel guilty and like a failure. Video provided by Newsy
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:
from the past week

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