Prolongation of F-wave minimal latency: a sensitive predictor of polyneuropathy

Nivedita Uberoi Jerath; Edward Aul; Chandan G Reddy; Hamid Azadeh; Andrea Swenson; Jun Kimura

doi:10.3109/00207454.2015.1040492

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Prolongation of F-wave minimal latency: a sensitive predictor of polyneuropathy

Journal article

Peer reviewed

Prolongation of F-wave minimal latency: a sensitive predictor of polyneuropathy

Nivedita Uberoi Jerath, Edward Aul, Chandan G Reddy, Hamid Azadeh, Andrea Swenson and Jun Kimura

International journal of neuroscience, Vol.126(6), pp.520-525

06/02/2016

DOI: 10.3109/00207454.2015.1040492

PMID: 26000925

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Abstract

Introduction: To evaluate the sensitivity of F-wave minimal latencies, we compared F-waves with motor and sensory nerve conduction studies (MNCS and SNCS) in patients with peripheral neuropathy. Methods: A retrospective chart review conducted in 484 patients confirmed the clinical evidence of a polyneuropathy, and studies of F-wave minimal latencies as well as MNCS and SNCS in each patient. Results: Overall rate of abnormality reached 469/484 (96.9%) for F-wave minimal latencies as compared to 374/484 (77%) for nerve conduction studies ( p < 0.0001). Nerve-specific abnormalities of F-waves showed 290/354 (82%), 140/171 (82%), 367/398 (92%) and 357/376 (95%) for median, ulnar, peroneal and tibial nerves, respectively. Corresponding values for MNCS consisted of 108/354 (31%), 29/171 (17%), 258/398 (65%) and 189/376 (50%) (all p < 0.0001). In contrast, SNCS revealed abnormalities in 120/333 (36%), 60/159 (38%) and 266/474 (56%) of median, ulnar and sural nerves. Conclusion: F-wave minimal latencies serve as the best predictor of polyneuropathy followed by SNCS and then MNCS.

height-latency nomogram

F-wave minimal latency

peripheral neuropathy

polyneuropathy

nerve conduction studies

Details

Title: Subtitle: Prolongation of F-wave minimal latency: a sensitive predictor of polyneuropathy
Creators: Nivedita Uberoi Jerath - Iowa City Veterans Affair Medical Center
Edward Aul - Iowa City Veterans Affair Medical Center
Chandan G Reddy - Department of Neurosurgery, The University of Iowa
Hamid Azadeh - Department of Physiotherapy, School of Rehabilitation Sciences, Isfahan University of Medical Sciences
Andrea Swenson - Iowa City Veterans Affair Medical Center
Jun Kimura - Department of Neurology, Carver College of Medicine, The University of Iowa
Resource Type: Journal article
Publication Details: International journal of neuroscience, Vol.126(6), pp.520-525
Publisher: Taylor & Francis; New York
DOI: 10.3109/00207454.2015.1040492
PMID: 26000925
ISSN: 0020-7454
eISSN: 1563-5279
Language: English
Date published: 06/02/2016
Academic Unit: Neurology; Neurosurgery
Record Identifier: 9984020652302771

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