Penn researchers show effectiveness of device in analyzing gases exhaled from the nose to determine presence of common bacterial infections
Researchers at the University of Pennsylvania School of Medicine have recently completed three studies – the most comprehensive and largest to date – that demonstrate the effectiveness of an electronic nose device for diagnosing common respiratory infections, specifically pneumonia and sinusitis. Doctors hope that the device – called the Cyranose 320, or e-nose – will provide a faster, more cost-effective and easier-to-use method for accurately diagnosing pneumonia and, as a result, help reduce over-prescription of antibiotics. Their initial findings will be presented at the combined annual meetings of otorhinolaryngology (ear, nose and throat) experts – the Triologic Society and the American Broncho-Esophagological Association – on April 30th, 2004, in Phoenix, Arizona.
"Pneumonia is a serious bacterial infection that can cause serious injury or even death; indeed, it remains a leading cause of death in intensive care units (ICUs)," said lead author of the first study, C. William Hanson III, MD, Professor of Anesthesia and board-certified expert in critical care medicine. "Treating this illness is complicated because there are many kinds of pneumonia, and it can be commonly misdiagnosed in the ICU and confused with other diseases which cannot be treated using antibiotics. This is a leading cause of the overuse – through over-prescription – of antibiotics for false cases of pneumonia."
The first two studies looked at pneumonia cases among patients who are on ventilators in the surgical intensive care unit (SICU). Here, diagnosis is made difficult by the patients limited ability to move, and they are vulnerable to infections from other compounding injuries. In the first study, researchers found that the e-nose effectively diagnosed 92 percent of pneumonia cases among 25 patients, as confirmed by computed tomography (CT) scans of the lungs. It successfully distinguished 13 positive cases from 12 other patients who did not have pneumonia. Similarly, in the second study, researchers found the e-nose effective in providing accurate diagnoses of pneumonia in 31 of 44 SICU patients (70 percent).
David March | EurekAlert!
Collagen nanofibrils in mammalian tissues get stronger with exercise
14.12.2018 | University of Illinois College of Engineering
New discoveries predict ability to forecast dementia from single molecule
12.12.2018 | UT Southwestern Medical Center
Researchers from the University of Basel have reported a new method that allows the physical state of just a few atoms or molecules within a network to be controlled. It is based on the spontaneous self-organization of molecules into extensive networks with pores about one nanometer in size. In the journal ‘small’, the physicists reported on their investigations, which could be of particular importance for the development of new storage devices.
Around the world, researchers are attempting to shrink data storage devices to achieve as large a storage capacity in as small a space as possible. In almost...
The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.
Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...
What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...
A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.
The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...
A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.
Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...
12.12.2018 | Event News
10.12.2018 | Event News
06.12.2018 | Event News
17.12.2018 | Studies and Analyses
17.12.2018 | Life Sciences
17.12.2018 | Power and Electrical Engineering