🔬

11. Nerves/ NCS/ EMG

Topic

Basic Science

Podcast

011

Updated

NERVE INJURIES
NEUROMAS
Nerve Conduction Studies
Electromyography (EMG) - shows progress of re-innervation
Spine Monitoring

‣

Types of nerve fibres and classification?

‣

DRAW cross section of nerve and the layers?

‣

DRAW nerve conduction action potential? #draw

‣

How is action potential conducted?

‣

What is the peripheral nervous system? DRAW

‣

What is the Autonomic nervous system?

‣

Draw a nerve cell?

‣

What are the cells in the nervous system?

NERVE INJURIES

‣

How do you classify nerve injury?

‣

What are the pathophysiologic stages of compressive neuropathy?

‣

What is Wallerian degeneration? What are the stages?

‣

What are the features of progress in healing?

‣

What is the nerve reconstruction ladder?

‣

What are the nerve repair principles?

‣

What are the options for nerve repair?

‣

Which nerve repair method is best?

‣

How does nerve grafting work?

‣

Is there a time limit for nerve grafting/transfer?

‣

How to match fascicles?

‣

What factors affect nerve healing?

‣

What are the terms used to describe abnormal sensations?

NEUROMAS

SRN neuroma post op

‣

What is a neuroma?

‣

What are the types of neuromas?

‣

What is the management of neuroma?

Nerve Conduction Studies

‣

What is nerve conduction study?

‣

NCS findings in the 3 Seddon classifications:

‣

What is supramaximal stimulation?

‣

What is the significance of normal SNAP but loss of sensation?

‣

What are the special waves?

‣

What are F-waves (foot waves)? What are they used for?

‣

What is the 'H' Reflex?

‣

Describe NCS for Median nerve CTS?

‣

What are the normal conduction velocity and amplitude?

‣

What are the usual SNAP values?

‣

What slows the velocity? What are the implications?

‣

What are orthodromic and antidromic potentials?

‣

What are the other common stimulation sites?

Electromyography (EMG) - shows progress of re-innervation

‣

What is EMG?

‣

What is the interpretation?

‣

What are the EMG findings for COMPLETE nerve injury (Neurotmesis) with subsequent chronic denervation?

‣

What are the EMG findings for INCOMPLETE nerve injury?

‣

What are the EMG findings in myopathy?

Spine Monitoring

‣

How do you monitor the spine intraop?

‣

What is SSEP?

‣

What is MEP?

‣

Which is more accurate?

‣

What factors affect SSEP and MEP?

‣

What to do if drop in signal?

‣

How does EMG monitoring work?

‣

What muscles do you use for EMG monitoring?

📖

Prize her highly, and she will exalt you; she will honor you if you embrace her. Proverbs 4:8