Efficacy of different stimuli and manoeuvres in triggering PED attacks
| Type of stimulus |
Onset of PED after begin of stimulation(s) |
Overlasting of PED after end of stimulation(s) | Severity of PED1-150 |
| Thermal stimulus to palm of the hand (−5°C) | No reaction | ||
| Brushing of palm of the hand | No reaction | ||
| Voluntary contraction of forearm muscles | 300 | 300 | +++ |
| Passive movement: | |||
| Distal interphalangeal joint | 260 | 80 | + |
| Wrist | 80 | 420 | ++ |
| Electrical stimulation: | |||
| Finger (ring electrode) | 60 | 120 | + |
| Wrist | 230 | 180 | ++ |
| Magnetic stimulation: | |||
| Motor cortex | 135 | 240 | ++ |
| Brachial plexus | 135 | − | ++ |
| Sham magnetic stimulation over the motor cortex | No reaction | ||
| Vibration of forearm flexors: | |||
| 100 Hz | 55 | 400 | +++ |
| 50 Hz | 15 | 320 | +++ |
-
↵1-150 Mild (+), medium (++), maximal (+++).
-
1-151 Not measured.
