Table 1 Diagnostic values of sleep and respiratory variables obtained by polysomnography
From: Mönckeberg's sclerosis – is the artery the only target of calcification?
Sleep and respiratory variables | Patient | Expected values |
|---|---|---|
Sleep efficiency (TST*/TRT† %) | 58 | >80 |
Stage 1 (%) | 10,7 | ≤_9 |
Stage 2 (%) | 74,4 | ≤_60 |
Stage 3–4 (%) | 7,4 | 10–25 |
Stage REM (%) | 7,5 | 10–25 |
Mean oxygen saturation(%) | 92 | >96 |
Minimal oxygen saturation (%) | 88 | 93–95 |
Apnea/Hypopnea index (/hour) | 51,6 | < 5 |
Apnea index (/hour) | 40,9 | <5 |
Mean duration of apneas (seconds) | 30 | 10 |
Time spent with SaO2 <90%(min) | 2 | - |