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The usefulness of minimal F-wave latency and sural/radial amplitude ratio in diabetic polyneuropathy.
Yonsei Med J. 2000 Jun; 41(3):393-7.YM

Abstract

The possibility of whether minimal F-wave latency and a simple ratio between the sural and superficial radial sensory response amplitudes may provide a useful electrodiagnostic test in diabetic patients was investigated in this report. To evaluate the diagnostic sensitivity of minimal F-wave latency, the Z-scores of the minimal F-wave latency, motor nerve conduction velocity (MCV), amplitude of compound muscle action potentials (CMAP), and distal latency (DL) of the median, ulnar, tibial, and peroneal nerve were compared in 37 diabetic patients. For the median, ulnar, and tibial nerves, the Z scores of the minimal F-wave latency were significantly larger than those of the MCV. In addition for all four motor nerves, the Z scores of the minimal F-wave latency were significantly larger than those for the CMAP amplitude. Furthermore, 19 subjects showing abnormal results in the standard sensory nerve conduction study had a significantly lower sural/radial amplitude ratio (SRAR), and 84% of them had an SRAR of less than 0.5. In conclusion, minimal F-wave latency and the ratio between the amplitudes of the sural and superficial radial sensory nerve action potential are sensitive measures for the detection of nerve pathology and should be considered in electrophysiologic studies of diabetic polyneuropathy.

Authors+Show Affiliations

Department of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea. jbshinlim@netsgo.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

10957895

Citation

Shin, J B., et al. "The Usefulness of Minimal F-wave Latency and Sural/radial Amplitude Ratio in Diabetic Polyneuropathy." Yonsei Medical Journal, vol. 41, no. 3, 2000, pp. 393-7.
Shin JB, Seong YJ, Lee HJ, et al. The usefulness of minimal F-wave latency and sural/radial amplitude ratio in diabetic polyneuropathy. Yonsei Med J. 2000;41(3):393-7.
Shin, J. B., Seong, Y. J., Lee, H. J., Kim, S. H., Suk, H., & Lee, Y. J. (2000). The usefulness of minimal F-wave latency and sural/radial amplitude ratio in diabetic polyneuropathy. Yonsei Medical Journal, 41(3), 393-7.
Shin JB, et al. The Usefulness of Minimal F-wave Latency and Sural/radial Amplitude Ratio in Diabetic Polyneuropathy. Yonsei Med J. 2000;41(3):393-7. PubMed PMID: 10957895.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The usefulness of minimal F-wave latency and sural/radial amplitude ratio in diabetic polyneuropathy. AU - Shin,J B, AU - Seong,Y J, AU - Lee,H J, AU - Kim,S H, AU - Suk,H, AU - Lee,Y J, PY - 2000/8/25/pubmed PY - 2000/9/19/medline PY - 2000/8/25/entrez SP - 393 EP - 7 JF - Yonsei medical journal JO - Yonsei Med. J. VL - 41 IS - 3 N2 - The possibility of whether minimal F-wave latency and a simple ratio between the sural and superficial radial sensory response amplitudes may provide a useful electrodiagnostic test in diabetic patients was investigated in this report. To evaluate the diagnostic sensitivity of minimal F-wave latency, the Z-scores of the minimal F-wave latency, motor nerve conduction velocity (MCV), amplitude of compound muscle action potentials (CMAP), and distal latency (DL) of the median, ulnar, tibial, and peroneal nerve were compared in 37 diabetic patients. For the median, ulnar, and tibial nerves, the Z scores of the minimal F-wave latency were significantly larger than those of the MCV. In addition for all four motor nerves, the Z scores of the minimal F-wave latency were significantly larger than those for the CMAP amplitude. Furthermore, 19 subjects showing abnormal results in the standard sensory nerve conduction study had a significantly lower sural/radial amplitude ratio (SRAR), and 84% of them had an SRAR of less than 0.5. In conclusion, minimal F-wave latency and the ratio between the amplitudes of the sural and superficial radial sensory nerve action potential are sensitive measures for the detection of nerve pathology and should be considered in electrophysiologic studies of diabetic polyneuropathy. SN - 0513-5796 UR - https://www.unboundmedicine.com/medline/citation/10957895/The_usefulness_of_minimal_F_wave_latency_and_sural/radial_amplitude_ratio_in_diabetic_polyneuropathy_ L2 - https://www.eymj.org/DOIx.php?id=10.3349/ymj.2000.41.3.393 DB - PRIME DP - Unbound Medicine ER -