An Overview of Nerve Conduction Studies and Electromyography (Feat. Dr. Bucelli) скачать в хорошем качестве

An Overview of Nerve Conduction Studies and Electromyography (Feat. Dr. Bucelli)

LECTURE An Overview of Nerve Conduction Studies and Electromyography Authors: Bucelli RC1, Yee A2 Published: November 17, 2021 Author Information 1 Department of Neurology, Washington University, St. Louis, Missouri 2 Division of Plastic and Reconstructive Surgery, Washington University, St. Louis, Missouri Lecture (211013.211013) ABSTRACT Understanding the basics and fundamentals of electrodiagnostic studies (EDX) is critical for accurate and appropriate decision-making in the management of nerve injuries. In this lecture, we present an overview of nerve conduction studies and electrography from a neurologist’s perspective for nerve surgeons. This includes the importance of conduction velocity, CMAP, SNAP, spontaneous activity, and mother unit action potentials. The lecture describes clinical electrophysiologic correlations and finishes with a case study. KEYWORDS Nerve injuries, nerve conduction studies, electromyography TABLE OF CONTENTS 00:00 Introduction 00:22 Core Concepts in EDX 03:21 Technical Factors in EDX 06:31 Anatomy and Neurophysiology 10:09 Nerve Conduction Studies 10:17 Compound Muscle Action Potential (CMAP) 13:33 Conduction Velocity 15:22 Sensory Nerve Action Potential (SNAP) 19:06 Localization Via Sensory EDX 23:06 Electromyography 27:57 Analysis of Spontaneous Activity 32:47 Analysis of Motor Unit Action Potentials 41:07 Clinical Electrophysiologic Correlations 41:09 Timing of Acute Injury 42:21 Time-Related Changes 43:27 Sensory Nerve Conduction Studies Considerations 45:04 Demyelination and Conduction Block 46:15 Less Common “Upper Limb” Neuropathies 46:48 Case Study