Late Responses in Median Nerve Entrapment Neuropathy in the Carpal Tunnel

Abstract

This study aims to systematize the late responses’ parameters and determine the usefulness of each of them. We studied a total of 325 patients and we evaluated bilateral the median and the ulnar nerve with F wave and A wave parameters. We draw attention to the necessity of the bilateral examination and that of examining the ipsilateral ulnar nerve, due to the difference in the average latency of F waves of the median and ulnar nerve which was the most sensitive parameter studied, modified in almost three-quarters of cases. This parameter is included in the composite score along with AAEM recommendations.