Table 5. ABP waveform features at rest and during hypercapnia. Only datasets in which recalibration did not occur over the course of monitoring (n = 24) were used to compute end diastolic pressure (EDP), mean arterial pressure (MAP), peak systolic pressure (PSP), and amplitude (AMP). Heart rate was quantified over all subjects (n = 30). Data are reported as median (interquartile range). Significance was assessed with a cutoff of 0.05 using a two-tailed Wilcoxon signed-rank test.
| Comparison between resting and hypercapnia |
||||
|---|---|---|---|---|
| Parameter | Resting state | Hypercapnia | p-value | % Change |
| EDP (mmHg) | 69 (56, 79) | 73 (58, 83) | < 0.001 | 4.5 (1.8, 9.2) |
| MAP (mmHg) | 81 (66, 90) | 87 (69, 96) | < 0.001 | 6.4 (2.9, 10.3) |
| PSP (mmHg) | 115 (94, 122) | 122 (97, 128) | < 0.001 | 3.4 (0.3, 8.5) |
| AMPp (mmHg) | 41 (32, 48) | 44 (32, 53) | 0.20 | 2.6 (-2.4, 9.3) |
| HR (bpm) | 73 (66, 81) | 76 (68, 82) | 0.003 | 4.39 (-0.21, 8.71) |