ABSTRACT
This chapter explains that the themed presentation encourages quick, focused study and detailed answers aid comprehension and encourages familiarity with electrophysiology with essential diagrams, colour images and sample MRIs. Diabetes mellitus is one of the commonest causes of peripheral neuropathy in developed countries. Nerve conduction studies confirm whether axons, myelin or both of these are affected. However, in diabetes mellitus, axons are damaged with intact myelin sheath. Pain was elicited in the reverse Phalen’s test because of the higher intra-carpal tunnel hydrostatic pressure compared with in the normal Phalen’s manoeuvre. Other features of median nerve compression on examination include wasting of the thenar eminence, weakness of the lateral two Lumbricals, Opponens pollicis, Abductor pollicis brevis and Flexor pollicis brevis.
