Table 4.
Autonomic findings
| I-1 | I-2 | II-1 | II-2 | ||
|---|---|---|---|---|---|
| RRIV (%) (N > 15) | 3.53 | 15.7 | 24.2 | 25.4 | |
| Head-up tilt test | NR | NR | NR | NR | |
| BR sensitivity (msec/mmHg) | -1.9 | -1.4 | 2.3 | 0.7 | |
| 30:15 ratio (N > 1.03) | 1.03 | 0.95 | 1.11 | 1.37 | |
| SSR | |||||
| onset latency (ms) | R palm | 1320 | 1700 | 1440 | 1720 |
| L palm | 1400 | 1700 | 1400 | 1770 | |
| R sole | 2300 | 2280 | 2060 | 2280 | |
| L sole | 2290 | 2280 | 2250 | 2280 | |
| amplitude (μV) | R palm | 2652 | 1569 | 978 | 1314 |
| L palm | 2198 | 921 | 869 | 1099 | |
| R sole | 315 | 159 | 61 | 688 | |
| L sole | 399 | 239 | 74 | 562 | |
| Q-Sweat test | |||||
| onset latency (seconds) | Forearm | 137 | 219 | 185 | 275 |
| Proximal leg | 217 | 194 | 165 | 128 | |
| Distal leg | 165 | 148 | 168 | 136 | |
| Foot | 165 | 203 | 189 | 122 | |
| total volume (μl) | Forearm | 0.150 | 0.298 | 0.015 | 0.450 |
| Proximal leg | 0.134 | 0.063 | 0.199 | 1.283 | |
| Distal leg | 0.183 | 0.108 | 0.294 | 1.409 | |
| Foot | 0.029 | 0.095 | 0.030 | 0.700 | |
| skin temperature (°C) | Forearm | 36.5 | 36.4 | 36.5 | 35.4 |
| Proximal leg | 35 | 35.8 | 36.4 | 35.7 | |
| Distal leg | 35.6 | 36.3 | 34.9 | 35.3 | |
| Foot | 35.7 | 35.2 | 34.7 | 35.4 | |
| room temperature (°C) | 23 | 21 | 21 | 21 | |
| room humidity (%) | 56 | 57 | 58 | 58 |
RRIV: R-R interval variation; NR: normal blood pressure (BP) and heart rate (HR) response in head-up tilt test: no abnormal change in BP and HR; N: normal; SSR: sympathetic skin response; Q-Sweat: quantitative sweat measurement.
In Q-Sweat test, the total sweat volume (median (min, max) for female normal control were 0.495 (0.02, 3.814) (forearm), 0.505 (0.06, 4.49) (proximal leg), 0.389 (0.015, 4.914) (distal leg) and 0.203 (0.014, 0.802) (foot), and for male normal control were 1.079 (0.02, 3.814) (forearm), 1.091 (0.029, 2.734) (proximal leg), 1.107 (0.043, 2.902) (distal leg) and 0.585 (0.041, 1.718) (foot).