Diagnostic significance of F wave in diabetic peripheral neuropathy
Abstract：Aim To investigate the diagnostic significance of F wave in diabetic peripheral neuropathy (DPN).Methods F and M wave parameters were analyzed in 106 patients with diabetes mellitus and 75 controls,including the minimum latency,duration, amplitude and area of F-wave,and the amplitude and the area of M-wave.Results The minimum latency prolonged and ratio of amplitude of F/M and the ratio of the area of F/M significantly increased in the patients with DPN,the duration of F wave prolonged in the mild DPN but revealed normal in the severe ones. In the 30 patients of diabetes mellitus without neuropathy,there were 8 patients with prolonged duration of F wave,4 prolonged minimum latency of F wave,2 increased ratio of the area of F/M.In the controls, the function of upper limit of the minimum latency of F wave (Y) and leg length (X) was Y=12.3+ 48.8X2.Conclusion F wave could be served as sensitive means to the early diagnosis of DPN, and may detect sub-clinical lesions.Both proximal and distal nerve segment could be affected in the DPN, and the proximal may be earlier and more severely involved than the distal.
Keywords：diabetic neuropathyelectrophysiologytibial nerve
Publication Date：2003-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：2( 1784-1785 )