Results of full polysomnography in 41 subjects selected at random from heart failure patients
| No CSR | CSR | |
|---|---|---|
| Actual sleep time (AST) (mins) | 330 (19) | 358 (21) |
| Non-REM 1–2 sleep (% of AST) | 55 (3) | 60 (3) |
| Non-REM 3–4 sleep (% of AST) | 29 (2) | 24 (3) |
| REM sleep (% of AST) | 16 (2) | 14 (2) |
| Arousal index (per hour AST) | 5.4 (0.8) | 10 (1.9)4-150 |
| Desaturation index (per hour TST) | 6.3 (0.9) | 26.4 (3)** |
| Minimum Sao 2 | 86.8 (0.8) | 81.7 (2.5)4-150 |
| Apnoea/hypopnoea index (per hour AST) | 24.2 (3) | 52.5 (3.2)** |
| Central apnoea index (per hour AST) | 2 (0.5) | 28.4 (2.9)** |
Results are given as mean (SEM).
↵4-150 p ⩽ 0.05; **p ⩽ 0.001.
REM, rapid eye movement; Sao 2, oxygen saturation by pulse oximetry; TST, total sleep time.