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C121 - Clinical EMG III: Nerve Conduction Criteria and Electrodiagnostic Approaches

Event Time: Tuesday May 7, 2019 7:00 am to 9:00 am
Topic(s): Neuromuscular and Clinical Neurophysiology (EMG)
Director(s): Mark Bromberg MD, PhD, FAAN
Description: Interpretation of nerve conduction studies, repetitive nerve stimulation and needle EMG studies are based on a combination of numeric and qualitative values. Normative data represents ranges of values and interpretation of pathology challenging when ranges are applied loosely. EMG III expands on EMG I and II by providing a quantitative approach. While nerve conduction studies are based on quantitative metrics, the first talk will consider how an ordered assessment based on which metrics are most informative can help reduce misdiagnoses of demyelinating and conduction block neuropathies. Assessment of neuromuscular junction transmission is based on quantification, and the second talk will review repetitive nerve stimulation and assessment of jitter. Needle EMG interpretation is commonly based on subjective view of motor unit metrics and the third talk will review what is known about the motor unit and how to enhance interpretation of changes with quantitative EMG techniques. This program complements Clinical EMG I: Principles and Practice of NCS and Needle EMG and Clinical EMG II: Case-based Clinical Applications of Nerve Conduction Studies and Needle Electromyography, but covers independent topics.
Completion Message: Participants should be able to: better interpret nerve conduction studies to distinguish primary demyelinating and conduction block neuropathies; perform and interpret repetitive nerve conduction studies and jitter measurements and manage technical issues; understand limits of knowledge of the motor unit and how to incorporate quantitative approach to needle EMG studies.
CME Credits: 2
Core Competencies: Practice-based Learning and Improvement, Systems-based Practice, Medical Knowledge

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