tailieunhanh - Báo cáo y học: "Establishing a gold standard for manual cough counting: video versus digital audio recording"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Establishing a gold standard for manual cough counting: video versus digital audio recordings. | Cough BioMed Central Open Access Methodology Establishing a gold standard for manual cough counting video versus digital audio recordings Jaclyn A Smith 1 John E Earis2 and Ashley A Woodcock1 Address 1North West Lung Research Centre South Manchester University Hospitals Trust Wythenshawe Hospital Southmoor Rd Manchester M23 9LT UK and 2University Hospital Aintree Longmoor Lane Liverpool Merseyside L9 7AL UK Email Jaclyn A Smith - John E Earis - Ashley A Woodcock - Corresponding author Published 03 August 2006 Received 17 April 2006 Cough 2006 2 6 doi 1745-9974-2-6 Accepted 03 August 2006 This article is available from http content 2 1 6 2006 Smith et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Manual cough counting is time-consuming and laborious however it is the standard to which automated cough monitoring devices must be compared. We have compared manual cough counting from video recordings with manual cough counting from digital audio recordings. Methods We studied 8 patients with chronic cough overnight in laboratory conditions diagnoses were 5 asthma 1 rhinitis 1 gastro-oesophageal reflux disease and 1 idiopathic cough . Coughs were recorded simultaneously using a video camera with infrared lighting and digital sound recording. The numbers of coughs in each 8 hour recording were counted manually by a trained observer in real time from the video recordings and using audio-editing software from the digital sound recordings. Results The median cough frequency was IQR cough sounds per hour in the video recordings and coughs per hour in the digital sound