Table 1.
All POTS and controls
| Event | POTS (n = 39) |
Healthy Controls (n = 32) |
||||||
|---|---|---|---|---|---|---|---|---|
| Time | SBP | DBP | HR | Time | SBP | DBP | HR | |
| Baseline | 121 ± 12* | 56 ± 9 | 69 ± 11 | 111 ± 9 | 54 ± 5 | 73 ± 5 | ||
| Stand | 0 | 121 ± 15 | 55 ± 9 | 84 ± 12 | 0 | 114 ± 12 | 56 ± 8 | 77 ± 11 |
| BP nadir | 14 ± 1 | 79 ± 27* | 34 ± 13 | 111 ± 13 | 11 ± 4 | 86 ± 14 | 42 ± 7 | 110 ± 9 |
| HR peak | 24 ± 17* | 122 ± 31 | 61 ± 20 | 124 ± 13 | 16 ± 5 | 112 ± 21 | 56 ± 13 | 120 ± 12 |
| BP recovery | 28 ± 12 | 150 ± 28* | 75 ± 16* | 103 ± 16* | 23 ± 6 | 137 ± 22 | 63 ± 12 | 90 ± 21 |
| HR recovery | 50 ± 25* | 133 ± 20 | 63 ± 14 | 88 ± 14* | 27 ± 9 | 131 ± 19 | 59 ± 10 | 75 ± 13 |
| Steady trend | 98 ± 40* | 127 ± 16 | 69 ± 10 | 108 ± 15* | 57 ± 28 | 124 ± 12 | 62 ± 9 | 91 ± 17 |
Time of event, blood pressure (BP), and heart rate (HR) data are shown as means ± SD; n = no. of patients. DBP, diastolic blood pressure; POTS, postural tachycardia syndrome; SBP, systolic blood pressure
*
P < 0.05 compared with controls.