抄録
The total apnea number (TAN) and apnea index (AI) of 20 patients with sleep apnea syndrome (SAS) obtained by apnomonitor were evaluated and compared with the data obtained by polysomnography (PSG) performed simultaneously on the same patients.
The patients were 17 males and 3 females, aged 7 to 59 years. The Body Mass Index (BMI) of the patients ranged from 14.3-34.4kg/m2 (mean±SD, 24.8±4.98kg/m2).
AI values obtained by apnomonitor were higher than those obtained by PSG in 12 patients (60%), lower in 3 patients (15%) and nearly equal in 5 patients (25%). TAN values obtained by apnomonitor were higher than those obtained by PSG in 15 patients (75%), lower in 2 patients (10%) and nearly equal in 3 patients (15%). In 2 patients, AI and TAN values obtained by the two kinds of monitoring were almost equal.
The data suggest that the sensitivity of apnomonitors is somewhat less accurate than that of PSG.
Consequently, we recommend that apnomonitors be used with pulse oximeters for the screening of SAS patients.
