Wednesday, 4 December 2013

Simple screening tool for OSA by Shanghai doctors

by Michael Woodhead
A new simple screening tool developed by Shanghai clinicians means the diagnosis of obstructive sleep apnoea (OSA) should no longer be time-consuming, labour-intensive and inaccessible for Chinese patients.
Dr Guan Jian and co-researchers at the Department of Otolaryngology, The Affiliated Sixth People's Hospital, Otolaryngology Institute of Shanghai Jiao Tong University, evaluated the efficiency of Epworth Sleepiness Scale and a new established prediction model for screening OSA were in a test cohort of 2,032 participants.
The new screening model included factors such as age, waist circumference, Epworth Sleepiness Scale score, and minimum oxygen saturation (SaO2). In use it proved to have a high sensitivity (89%) and specificity (90%) It was also found to have significantly better overall performance than the Epworth Sleepiness Scale alone .
“A practical screening model comprising minimum SaO2 and other parameters could efficiently identify undiagnosed obstructive sleep apnoea from the high-risk patients,” the researchers said.
"The high sensitivity and specificity of the final screening model indicated a simple and practical method for screening adults at high risk of obstructive sleep apnoea. This will facilitate targeted initiation of preventive measures for minimizing the major health-related consequences in China."
Full study: PLOS One

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