PMC6232022_01
Repetitive nerve stimulation at 3 Hz showed a 26.3% decrease in the nasal muscle amplitude. The decrement response was calculated using the following formula: decrement (%)=(amplitude of 1st response-amplitude of 4th response) x100/amplitude of 1st response.
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Repetitive nerve stimulation (RNS) at 3 Hz showed a 26.3% decrease in nasal muscle amplitude (Fig. 1) and an 11.5% decrease in right trapezius muscle amplitude.
The clinical course and medications. Note that the muscle weakness trace shows weakness in the extremities (upper and lower).
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She was transferred to a nursing home, and her condition worsened progressively (Fig. 2).