Key result
Chronic Chagas' disease was associated with slowness of large motor axons at distal (2.6%) and proximal (14%) segments, and slowness of conduction at the smallest motor fibers (27%).
Cross-Sectional (n=70)
Patients in the chronic stage of Chagas disease may develop a motor neuropathy, as evidenced by slowed conduction in motor fibers.
May suggest motor neuropathy in chronic Chagas disease; hypothesis-generating and requires prospective validation before clinical relevance.
A comprehensive investigation of nerve motor conduction velocity was carried out in the ulnar nerve of 70 patients in the chronic stage of Chagas disease. It was found that 2.6% of them, had slowness of the large motor axons at distal segments and 14% at proximal segments. Twenty seven percent of them had also slowness of conduction at the smallest motor fibers. These observations signal that some patients in the chronic stage of the infection may develop a motor neuropathy.
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Sica et al. (1991) conducted a cross-sectional in Chronic Chagas' disease (n=70). Chronic Chagas' disease was evaluated on Slowness of nerve motor conduction velocity in the ulnar nerve. Chronic Chagas' disease was associated with slowness of large motor axons at distal (2.6%) and proximal (14%) segments, and slowness of conduction at the smallest motor fibers (27%).
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