Evaluation of digital area medicine information cybernetic system in diagnosing obstructive sleep apnea hypopnea syndrome

Objective To analyze the diagnostic value of digital area medicine information cybernetic system(DAMICS) in diagnosing obstructive sleep apnea hypopnea syndrome(OSAHS). Methods Seventy-six patients [male 64, female 12, with a mean age of(46.58±14.32)] with suspected OSAHS were monitored by DAMICS and polysomnography(PSG) for 7 h. The apnea hypopnea index(AHI) of PSG served as gold standard for the diagnosis of OASHS. The diagnostic value was evaluated by comparing PSG-AHI with DAMICS-AHI. Results There was no significant difference in mild patients according to groups of PSGAHI(P 0.05). There was no significant difference in stertorous and mild patients according to groups of DAMICS-AHI(P 0.05). Significant positive correlation was found between DAMICS-AHI and PSG-AHI(r=0.967, P=0.000). With PSG-AHI≥5 as the diagnostic standard of OSAHS and PSG-AHI≥15 as diagnostic of severe OSAHS, receiver operating characteristic(ROC) curves were drawn. According to ROC curves, a cut-off point of 7.6 was identified as the best point for diagnosing OSAHS with sensitivity of 93.8% and specificity of 100%. Another cut-off point of 14.15 was identified as the best point for diagnosing severe OSAHS with sensitivity of 93.9% and specificity of 96.3%. Conclusion DAMICS is a valuable device with highly sensitivity and specificity in diagnosis of OSAHS.