Teachable Moment: Repetitive Nerve Stimulation Interpretation-Video

Video Transcription

Video Summary

In this video, Devin Rubin provides an overview of repetitive nerve stimulation (RNS) and how to assess its reliability. RNS is used to diagnose neuromuscular junction disorders by stimulating a nerve at slow rates, stressing the neuromuscular junction. In a normal junction, the amplitude of the compound muscle action potential (CMAP) remains stable. However, in patients with impaired transmission like myasthenia gravis or Lambert-Eaton syndrome, there is a decrease in CMAP amplitude and area. Rubin explains how to analyze the waveforms, stability of baseline, and degree of decrement to determine reliability. He also discusses the potential effects of exercise on RNS results. No credits were mentioned in the video.

Keywords

repetitive nerve stimulation

neuromuscular junction disorders

compound muscle action potential

myasthenia gravis

Lambert-Eaton syndrome