Table 1: Grouped analysis of the main studied parameters during changes in arterial blood pressure.
Parameter |
Hypertension (n = 33) |
P value |
Normotension (n = 40) |
P value |
Hypotension (n = 38) |
HR (bpm) |
64 [59-72] |
0.5605 |
67 [60-73] |
0.3977 |
63 [55-76] |
SAP (mmHg) |
156 [149-168] |
< 0.0001 |
114 [104-121] |
< 0.0001 |
82 [78-86] |
MAP (mmHg) |
111 [106-123] |
< 0.0001 |
82 [78-88] |
< 0.0001 |
61 [56-64] |
DAP (mmHg) |
91 [83-100] |
< 0.0001 |
68 [61-75] |
< 0.0001 |
49 [44-54] |
PP (mmHg) |
65 [55-76] |
< 0.0001 |
44 [38-51] |
< 0.0001 |
30 [27-39] |
PPG amplitude (%) |
25 [24-41] |
0.0001 |
40 [30-50] |
0.0205 |
50 [40-63] |
RI |
0.79 [0.69-1.15] |
0.3367 |
0.73 [0.69-0.81] |
0.6104 |
0.73 [0.65-0.82] |
Vm (cm/s) |
18 [10-26] |
0.0043 |
20 [14-25] |
0.0238 |
21 [15-26] |
Temp (ºC) |
34.0 [33.8-34.9] |
0.7805 |
34.0 [33.8-35.0] |
0.8105 |
34.0 [33.9-34.9] |
Data belong to all patients pooled. HR: Heart rate; SAP: Systolic arterial pressure; MAP: Mean arterial pressure; DAP: Diastolic arterial pressure; PP: Pulse pressure; PPG: Photoplethysmography; IR: Doppler resistive index; Vm: Doppler wave mean velocity; and Temp: Hand temperature; P value: Wilcoxon rank sum test compared with normotension. Data is presented as median and 1st-3rd quartiles.