Research Article
Respiratory Event-Induced Blood Pressure Oscillations Vary by Sleep Stage in Sleep Apnea Patients
Table 2
Apnea-elicited variations in DBP during various sleep stages.
| | Subject no. | Sleep stage (no. of OSA events analyzed) | Mean ± STD baseline DBP (mmHg) | peak DBP during apnea (mmHg) | % difference of mean peak and baseline DBP | Postapnea delay (s) |
| | 1 | N1 (7) | 69.3 ± 2.8 | 76.4 ± 7.1 | 10.2% | 10.0 | | 1 | N2 (12) | 68.3 ± 3.6 | 77.9 ± 7.8 | 14.1% | 7.1 | | 4 | N1 (25) | 75.0 ± 4.1 | 82.8 ± 7.1 | 10.4% | 11.7 | | 5 | N1 (27) | 74.9 ± 3.5 | 84.2 ± 9.4 | 12.4% | 6.3 | | 6 | REM (10) | 71.1 ± 1.6 | 75.3 ± 4.3 | 5.8% | 25.1 | | 7 | N1 (5) | 57.5 ± 3.0 | 65.4 ± 6.9 | 13.7% | 7.4 | | 7 | REM (6) | 57.9 ± 2.0 | 63.1 ± 8.2 | 9.0% | 7.1 | | 8 | N1 (12) | 71.0 ± 5.2 | 83.0 ± 9.0 | 16.9% | 8.5 | | 10 | N1 (7) | 64.1 ± 4.9 | 80.0 ± 9.3 | 24.8% | 5.4 | | 10 | N2 (13) | 65.9 ± 5.7 | 82.4 ± 8.7 | 25.2% | 3.4 |
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