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Usefulness of assessing repeater F-waves in routine studies
Univ Patras, Sch Med, Dept Neurol, Patras 26504, Rion, Greece.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Clinical Neurophysiology. Autonomous Univ Barcelona, Dept Clin Neurophysiol, Vall dHebron Univ Hosp, Barcelona, Spain.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Clinical Neurophysiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Clinical Neurophysiology.
2012 (English)In: Muscle and Nerve, ISSN 0148-639X, E-ISSN 1097-4598, Vol. 45, no 4, 477-485 p.Article in journal (Refereed) Published
Abstract [en]

INTRODUCTION: Repeater F-waves are sometimes seen in routine studies.

METHODS: We retrospectively reviewed the clinical significance of repeater F-waves in median, ulnar, and fibular nerve recordings in 50 healthy subjects and groups of 50 patients each with diabetic polyneuropathy, amyotrophic lateral sclerosis, carpal tunnel syndrome, ulnar mononeuropathy, and L5 root lesion. The number of identical F-waves and their repetitions in samples of 20 stimuli were estimated.

RESULTS: Repeater F-waves occurred significantly more frequently in all nerves and patient groups than in healthy individuals. Their persistence was negatively correlated with that of non-repeater F-waves.

CONCLUSIONS: Based on the presented material and recording condition it appears that repeater F-waves differentiate between health and disease but not between different types of pathology of motor neurons or their axons. Even in routinely recorded samples of 20 traces, the index of repeater all F-waves could be used as a sign of nerve pathology.

Place, publisher, year, edition, pages
2012. Vol. 45, no 4, 477-485 p.
Keyword [en]
amyotrophic lateral sclerosis, F-wave persistence, motor neurons, neuropathy, repeater F-waves
National Category
Clinical Laboratory Medicine
Research subject
Clinical Neurophysiology
Identifiers
URN: urn:nbn:se:uu:diva-189457DOI: 10.1002/mus.22333ISI: 000301657000004PubMedID: 22431079OAI: oai:DiVA.org:uu-189457DiVA: diva2:581447
Available from: 2013-01-02 Created: 2013-01-02 Last updated: 2017-12-06Bibliographically approved

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Punga, Anna RostedtStålberg, Erik

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