To limit time spent in the sleep-lab ward and avoid a delayed diagnosis of sleep apnea, adequate and accurate diagnosis/monitoring of sleep apnea/hypopnea using a portable device may be of benefit. This study was designed to evaluate the use of a portable sleep monitoring device in the diagnosis of sleep apnea/hypopnea syndrome. A high correlation in the apnea-hypopnia index (AHI) and the lowest oxygen saturation was noted between standard polysomnography and this portable device. The agreement between the 2 methods was also good (linear regression: R^2 0.799, p value <0.001). Extremely good sensitivity (97.3%) and specificity (88.6%) were noted at the diagnostic threshold of AHI ≥30, which means this portable device is a good screening and monitoring tool for severe sleep apnea/hypopnea disorders at home and may reduce waiting time and costs in medical resources. (Thorac Med 2012; 27: 81-87)
To limit time spent in the sleep-lab ward and avoid a delayed diagnosis of sleep apnea, adequate and accurate diagnosis/monitoring of sleep apnea/hypopnea using a portable device may be of benefit. This study was designed to evaluate the use of a portable sleep monitoring device in the diagnosis of sleep apnea/hypopnea syndrome. A high correlation in the apnea-hypopnia index (AHI) and the lowest oxygen saturation was noted between standard polysomnography and this portable device. The agreement between the 2 methods was also good (linear regression: R^2 0.799, p value <0.001). Extremely good sensitivity (97.3%) and specificity (88.6%) were noted at the diagnostic threshold of AHI ≥30, which means this portable device is a good screening and monitoring tool for severe sleep apnea/hypopnea disorders at home and may reduce waiting time and costs in medical resources. (Thorac Med 2012; 27: 81-87)
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