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Pneumonia revealed in a cough
Date:6/27/2013

A new method, which analyzes the sounds in a child's cough, could soon be used in poor, remote regions to diagnose childhood pneumonia reliably. According to Udantha Abeyratne from the University of Queensland in Australia and colleagues, this simple technique of recording coughs with a microphone on the patient's bedside table, has the potential to revolutionize the management of childhood pneumonia in remote regions around the world. Their work is published online in Springer's journal Annals of Biomedical Engineering.

Pneumonia is the leading killer of young children around the world. Since it is largely a disease of poverty, the vast majority of deaths occur in resource-poor regions such as sub-Saharan Africa, South Asia and remote areas of China. The lack of laboratory testing facilities and trained healthcare personnel in these regions mean difficulties in the timely diagnosis and adequate treatment of childhood pneumonia.

At the moment, community workers in these regions use the World Health Organization's simple clinical algorithm to diagnose pneumonia. However there are some limitations, including the high rate of false positive results which lead to over-prescription of rare antibiotic stocks.

Abeyratne and team's work identifies an easy-to-use alternative that addresses these challenges, in the form of new technology which analyzes cough sounds to diagnose pneumonia. Indeed, cough is a main symptom of pneumonia and carries vital information on the lower respiratory tract - consolidation of the lungs and secretions in particular. These markers of infection alter the acoustic properties of coughs helping to identify pneumonia-specific features.

The researchers analyzed 815 cough events recorded from a total of 91 hospitalized children with and without pneumonia, at the Sardjito Hospital of Gadjah Mada University in Indonesia. Cough sounds were collected by microphones placed on nearby bedside tables. Coughs we
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Contact: Sophia Grein
sophia.grein@springer.com
49-622-148-78414
Springer
Source:Eurekalert

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