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Electrodiagnostic consultations in Zambia: Referral characteristics and neuromuscular disorders
Michelle Kvalsund1, Patrice Mukomena2, Takondwa Chidumayo2
1International Neurologic & Psychiatric Epidemiology Program, Department of Neurology & Ophthalmology, Michigan State University, 909 Fee Road, West Fee Hall Room 324, East Lansing, MI 48824, USA; Department of Internal Medicine, University of Zambia School of Medicine, Lusaka, Zambia, Nationalist Road, P.O. Box 50110, Lusaka, Zambia.
Introduction:
Research on neuromuscular disorders in sub-Saharan Africa is scarce. We aimed to delineate referral characteristics and the neuromuscular disorders observed among electrodiagnostic (EDX) consultations in a tertiary care setting in Zambia.
Methods:
EDX records were reviewed for all specialist-performed studies after the establishment of the laboratory. The frequency of demographic, medical characteristics, and final EDX impressions are presented.
Results:
Among 108 referrals, 52% were male, 84% were adults (mean age 44 years). Referrals were predominantly outpatients (85%) and sent by neurologists (68%). HIV infection was common (12%). Diabetes was rare (3%). Overall, 77% of studies were abnormal. Polyneuropathy was the most common abnormal EDX finding, followed by motor neuron disease.
Discussion:
A diverse range of neuromuscular diseases was evaluated among EDX referrals in Zambia. Though labor and expertise intensive, access to EDX consultation can enhance clinical care and facilitate research and surveillance of neuromuscular disorders in the region.
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