Palmaris Brevis Spasm Syndrome

Sweep speed = 200 ms/div; Sensitivity = 1.0mV/div
  • High frequency discharges with irregular occurrence at rest
  • Spontaneous
  • Location of activity:
    • Isolated to palmaris brevis muscle
    • Bilateral or unilateral
    • None in other muscles

Sweep speed = 10 ms/div; Sensitivity = 0.2mV/div
  • Motor units: Normal amplitude, duration & morphology
from M. Al-Lozi

From: R Bucelli

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