TABLE 3.
Evolution of anhidrosis on repeat thermoregulatory sweat test and postganglionic sudomotor axon reflex testing
| Initial evaluation | Second evaluation | Third evaluation | |
|---|---|---|---|
| Evolution of TST | |||
| Number with repeat TST | 29 | 29 | 12 |
| Time from symptom onset to evaluation, years | 3.1 (2.0–5.7) | 5.2 (3.4–7.4) | 6.5 (4.8–8.5) |
| Abnormal TST | 23 (79) | 28 (97) | 12 (100) |
| Mean percentage anhidrosis (standard deviation) | 23.0 (32.2) | 31.2 (27.6) | 47.5 (35.4) |
| Evolution of postganglionic sudomotor axon reflex testing | |||
| Number with repeat QSART | 24 | 24 | 10 |
| Time from symptom onset to evaluation, years | 3.6 (1.5–5.8) | 5.4 (3.5–7.0) | 6.7 (4.5–8.1) |
| Abnormal postganglionic sudomotor axon reflex testing | 7 (29) | 10 (42) | 6 (60) |
Values displayed are frequency (percent) for categorical variables and median (interquartile range) for continuous variables unless otherwise stated. QSART, quantitative sudomotor axon reflex test; TST, thermoregulatory sweat test.