Featured Research

from universities, journals, and other organizations

Computer Monitors Wheezing In Asthma Patients

Date:
July 26, 2001
Source:
Netherlands Organization For Scientific Research
Summary:
NWO researcher Mireille Oud is working on a computer program to evaluate the respiratory sounds made by asthma patients. It would seem that a microphone just under the Adam’s apple may be sufficient to warn of an impending asthma attack.

NWO researcher Mireille Oud is working on a computer program to evaluate the respiratory sounds made by asthma patients. It would seem that a microphone just under the Adam’s apple may be sufficient to warn of an impending asthma attack.

Related Articles


During an attack, the respiratory tract becomes narrower, leading to gradual changes in the sound made during breathing. The intelligent computer program which Dr Oud developed while doing postdoctoral research at the University of Amsterdam, monitors these sound changes, something which the human ear cannot do. Previous research into respiratory sounds has focused mainly on being able to distinguish between patients who are breathing normally and those who are desperately short of breath.

Mireille Oud has found that respiratory sounds can provide enough information to precisely determine the level of shortness of breath. She is currently finishing off a concluding publication analysing the series of measurements she carried out. One potential use of the microphone system is to set off an alarm warning the patient of impending breathing problems while they are asleep. It can also help researchers to study a patient’s condition without him or her having to be made short of breath. Simply listening to their breathing is also a way of examining small children, who often find it difficult to blow hard several times in the course of a lung function test.

Before the computer could produce an accurate analysis of respiratory sounds, it first had to be fed with sound data and information on the state of the patient’s lungs. The medical physicist recorded the sounds produced during lung function tests. Directly after each recording, respiration measurements were also carried out. The test subject had to blow as hard as possible into a mouthpiece which measured the quantity of air passing through in the first second.

During lung function tests, histamine –produced by the body itself– is administered to the subject. Histamine causes obstruction of the respiratory tract, particularly in asthmatics. The researcher administered various different concentrations so that various gradations of breathlessness were produced. These could be recorded acoustically.

Mireille Oud intends to continue her work on respiratory sounds. One component of her research will be to use acoustic impedance measurements to determine levels of respiratory obstruction. Low-frequency sound waves will be projected into the subject’s mouth, setting the air in the lungs in motion. The level of the air flow will depend on the amount of obstruction.


Story Source:

The above story is based on materials provided by Netherlands Organization For Scientific Research. Note: Materials may be edited for content and length.


Cite This Page:

Netherlands Organization For Scientific Research. "Computer Monitors Wheezing In Asthma Patients." ScienceDaily. ScienceDaily, 26 July 2001. <www.sciencedaily.com/releases/2001/07/010726103637.htm>.
Netherlands Organization For Scientific Research. (2001, July 26). Computer Monitors Wheezing In Asthma Patients. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2001/07/010726103637.htm
Netherlands Organization For Scientific Research. "Computer Monitors Wheezing In Asthma Patients." ScienceDaily. www.sciencedaily.com/releases/2001/07/010726103637.htm (accessed October 30, 2014).

Share This



More Health & Medicine News

Thursday, October 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Reuters - Innovations Video Online (Oct. 29, 2014) A Swedish amputee who became the first person to ever receive a brain controlled prosthetic arm is able to manipulate and handle delicate objects with an unprecedented level of dexterity. The device is connected directly to his bone, nerves and muscles, giving him the ability to control it with his thoughts. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Google To Use Nanoparticles, Wearables To Detect Disease

Google To Use Nanoparticles, Wearables To Detect Disease

Newsy (Oct. 29, 2014) Google X wants to improve modern medicine with nanoparticles and a wearable device. It's all an attempt to tackle disease detection and prevention. Video provided by Newsy
Powered by NewsLook.com
Can Drinking Milk Lead To Early Death?

Can Drinking Milk Lead To Early Death?

Newsy (Oct. 29, 2014) Researchers in Sweden released a study showing heavy milk drinkers face an increased mortality risk from a variety of causes. Video provided by Newsy
Powered by NewsLook.com
Obama: The US Will Not 'run and Hide' From Ebola

Obama: The US Will Not 'run and Hide' From Ebola

AP (Oct. 29, 2014) Surrounded by health care workers in the White House East Room, President Barack Obama said the U.S. will likely see additional Ebola cases in the weeks ahead. But he said the nation can't seal itself off in the fight against the disease. (Oct. 29) Video provided by AP
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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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