basic principles of electrodiagnostic medicine s.mansoor rayegani, m.d professor of physical...
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Basic Principles of Electrodiagnostic Medicine
S.Mansoor Rayegani, M.DProfessor Of Physical Medicine And
Rehabilitation.Shahid Beheshti Medical University
PM&R research center
DefinitionEMG, EMG/NCV, EMG/NCS, Electrodiagnosis, Electrodiagnostic medicine consultation.
A specific branch of medicine practiced by a physician using history, physical examination, lab study, imaging and performing special electrodiagnostic tests including NCS, EMG and/or EP for diagnosis and treatment of PNS and CNS disorders.
Specific Diagnostic Tools NCS: latency, NCV, amplitude -Motor/Sensory/F, H responses, RST
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EMG (Needle EMG) -Spontaneous activities; Fibr., PSW -MUAP
EP: VEP, ABR, SEP, MEP
Disease diagnosed by EDX
CNS demyelinating disorders, MSMyelopathyMotor Neuron DiseaseRadiculopathyPlexopathyPNP (Axonal, Demyelinating)
Entrapment syndromes (CTS…)
NMJ dis.Myopathy (dystrophic, inflammatory,
myotonic)
Electrodiagnostic medicine steps Hx , P/E, Lab., ImagingDDxNCSEMG (muscle needling)Impression & judgmentSuggestions
Components of report
Demographic data
Clinical information
Body of report
Findings and description
Impression(EDX, Clinical??)
Comment/recommendation/suggestion.
Hints…
Highly Practitioner Dependent, It Is Not a TEST But a Consultation..
Physiologic and Not Anatomic Evaluation
More Specific to SensitiveTime Dependent ProcessSomewhat painful!
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