Palmar cutaneous branch of the median nerve conduction study.

The study of the palmar cutaneous branch of median nerve (PCBMN) was down in the Shohada hospital from september 1st 2002 to june 1st 2004. One hundred fifty healthy adult, 65 men and 85 women, with mean age of 36 year were studied by antidromic stimulation of median nerve 10 cm from the surface recording over the midthenar eminence. The nerve maybe injured by direct trauma or during surgery at the wrist. The latency was 2.07+/-0.22 (range 1.50 to 2.80) and the Amplitude of SNAP was 14.36+/-0.86 (range 12 to 16.2). the study is useful in evaluating lesions of the PCBMN