Table 2.
Haemodynamic parameters and cerebral tissue oxygen saturation during head‐up tilt test in HF patients and controls
| Parameter | HF (n = 61) | Controls (n = 60) | P value |
| SBP supine | 125.2 (22.9) | 141.5 (19.3) | <0.001 |
| DBP supine | 66.5 (12.5) | 78.5 (11.6) | <0.001 |
| HR supine | 71.2 (12.2) | 70.5 (11.6) | 0.720 |
| SBP 10 min HUT | 124.7 (24.1) a | 142.4 (20.3) | <0.001 |
| DBP 10 min HUT | 69.2 (14.0) a | 85.1 (14.0) | <0.001 |
| HR 10 min HUT | 74.1 (12.0) a | 77.1 (12.5) | 0.184 |
| SctO2 supine before HUT | 67.0 (5.0) | 71.1 (3.5) | <0.001 |
| SctO2 10 min HUT | 63.9 (4.5) | 68.8 (3.1) | <0.001 |
| Delta SBP 10 min | 0.6 (16.9) b | −0.93 (11.4) | 0.570 |
| Delta HR 10 min | −3.2 (8.5) a | −6.7 (6.7) | 0.013 |
| Delta SctO2 10 min HUT | 3.1 (2.1) | 2.2 (2.0) | 0.026 |
| SctO2 10 min HUT < 65% | 59.0% | 8.3% | <0.001 |
| SctO2 10 min HUT < 60% | 14.8% | 0% | 0.002 |
DBP, diastolic blood pressure; HF, congestive heart failure; HR, heart rate; HUT, head up tilt; SBP, systolic blood pressure; SctO2, cerebral tissue oxygen saturation.
Continuous variables are expressed as mean (standard deviation), whereas dichotomous variables are displayed as proportions in %. P values are from independent samples t‐test for continuous data and Pearson's χ 2 test for dichotomous data. Delta SBP, HR, and SctO2 were defined as the difference in supine value to 10 min of HUT.
a
N = 1 missing.
b
N = 2 missing.