Neuromuscular

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ELECTROMYOGRAPHY

CAUSES: DENERVATION or IRRITABLE MYOPATHY


M. Al-Lozi
SPONTANEOUS ACTIVITY

Positive sharp waves:
  • Long potentials (*)
  • Initial: Positive (Down) wave
  • Followed by: Wide negative wave
Fibrillations:
  • Brief potentials (Arrows)
  • Initial: Positive (Down) wave
  • Followed by: Negative wave


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Return to: Denervated muscle fibers

10/16/2023