Late Responses

Nov 18, 2017 by in PEDIATRICS Comments Off on Late Responses

Fig. 7.1 F waves from left ulnar nerve in a healthy teenager. M-waves (left) exhibit higher amplitude and similar morphology with each stimulation; they occur first due to the proximity…

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Motor Nerve Conduction Studies

Nov 18, 2017 by in PEDIATRICS Comments Off on Motor Nerve Conduction Studies

Fig. 5.1 Median motor study stimulating at the wrist (a) and at the antecubital fossa (b), recording abductor pollicis brevis (APB) muscle Fig. 5.2 Ulnar motor study stimulating at the…

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Pediatric Intraoperative Neuromonitoring

Nov 18, 2017 by in PEDIATRICS Comments Off on Pediatric Intraoperative Neuromonitoring

Fig. 8.1 Changes to motor evoked potentials (MEPs) during corpus callosotomy following placement of interhemispheric retractor resulting in loss of MEPs to lower extremities (arrow). Note changes recorded primarily from…

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Artifacts

Nov 18, 2017 by in PEDIATRICS Comments Off on Artifacts

Patient factors  Age  Height and/or length  Weight  Temperature  Anatomic variability (e.g., Martin-Gruber anastamosis) Environmental factors  Electrical (60 Hz) interference  Drug administration (pyridostigmine, neuromuscular blockade, botox) Machine/operator factors  Stimulation malposition  Electrode…

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Neuromuscular Junction Disorders

Nov 18, 2017 by in PEDIATRICS Comments Off on Neuromuscular Junction Disorders

1. Routine sensory and motor nerve conduction studies   • At least one upper and one lower extremity   • It is preferable to focus on symptomatic extremities 2. Repetitive nerve stimulation   • Low frequency repetitive stimulation…

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Epilogue

Nov 18, 2017 by in PEDIATRICS Comments Off on Epilogue

© Springer International Publishing AG 2017Hugh J. McMillan and Peter B. Kang (eds.)Pediatric Electromyographydoi.org/10.1007/978-3-319-61361-1_26 26. Epilogue Peter B. Kang1   and Hugh J. McMillan2   (1) Division of Pediatric Neurology, Shands Children’s Hospital, University of Florida College of Medicine, Gainesville, FL,…

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Normal Values Tables

Nov 18, 2017 by in PEDIATRICS Comments Off on Normal Values Tables

Age Amplitude (μV) Conduction velocity (m/s) Median nerve Term newborn ≥3.5 ≥22 0–1 month ≥3.5 ≥24 1–3 months ≥5 ≥25 3–6 months ≥5 ≥32 6–12 months ≥5 ≥33 1–2 years…

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Neuromuscular Complications in the Critically Ill Child

Nov 18, 2017 by in PEDIATRICS Comments Off on Neuromuscular Complications in the Critically Ill Child

  Clinical Electrodiagnostic Facial bulbar weak Respiratory distress Other Contractures NCS Rep stim/SFEMG EMG Anterior horn cell Spinal muscular atrophy Common Possible Bell shaped chest Uncommon Low CMAP Normal Neurogenic…

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