Naveen Prasad S.V., Assistant Professor, Department of Neurology, Sri Venkateswara Institute of Medical Sciences, Tirupathi, Andhra Pradesh 517507, India , Naveen Thota1 , Naveen Prasad S.V.2 , Anil Kumar K.3 , Vengamma B.4
There is considerable geographical variation worldwide in the prevalence rates of the subtypes of GBS.AIDP is the most common subtype in the Europe and North America constituting for 90% cases, while in Japan and china it is the AMAN Subtype. In India there is disparity among the studies regarding the prevalence of subtypes. Serial nerve conduction studies (NCS) were done on the day of admission and in between 38 weeks from the onset of illness. Electrophysiology was performed according to conventional standard methods by a qualified senior technician trained and experienced in electromyography using Medelec synergy (VIASYS Health Care, USA) machine. In all the sub types men outnumbered women. Mean (SD) MRC sum score at admission of AIDP, AMAN, AMSAN patients at admission are 32 (9), 31 (11), 31 (11) respectively. At discharge the mean (SD) MRC sumscore at discharge of the AIDP, AMAN, and AMSAN patients are 47 (10) 41 (12) 43 (11) respectively (p=0.001).
Keywords: GBS; AIDP; NCS.
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