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Nerve conduction normal values for electrodiagnosis in pediatric patients
Author(s) -
Ryan Conor S.,
Conlee Erin M.,
Sharma Rishi,
Sorenson Eric J.,
Boon Andrea J.,
Laughlin Ruple S.
Publication year - 2019
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.26499
Subject(s) - medicine , electrodiagnosis , nerve conduction , electromyography , normal values , reference values , nerve conduction velocity , clinical neurophysiology , pediatrics , surgery , physical medicine and rehabilitation , electroencephalography , psychiatry
ABSTRACT Introduction Existing normal value references for pediatric nerve conduction studies (NCS) are based on limited sample sizes with uncertain reliability, suggesting a need for better normative data. Methods Electronic medical records were reviewed for pediatric patients (0 to <18 years) with normal findings on electromyography and NCS during the period from January 1, 1997 through September 20, 2017. Electrodiagnostic and demographic data were collected. Gaussian and descriptive statistics were used to establish normal values by age group. Results In this study we analyzed 1,918 normal NCS on 1,849 unique pediatric patients. Patients were stratified by age: 0 to <1 month; 1 to <6 months; 6 to <12 months; 12 to <24 months; 2 to <3 years; 3 to <4 years; 4 to <5 years; 5 to <10 years; 10 to <15 years; and 15 to <18 years. Normal reference ranges for amplitude, conduction velocity, and distal latency were established for each age group for 4 motor and 4 sensory nerves. Discussion The large sample size of this study provides reliable reference values for interpreting pediatric NCS. Muscle Nerve 60 : 155–160, 2019