Blink reflex in end-stage-renal disease patients undergoing hemodialysis
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This study analyses the blink reflex in 20 adult male patients with terminal chronic renal failure undergoing hemodialysis. Abnormalities were found in ten patients (50%), eight of them with conduction studies showing axonal peripheral neuropathy. Dialysis time was longer for patients with blink reflex alterations (median 55.1 months) than for patients with normal blink reflex (median 36.3 months). Different types of early R1 and late R2 component abnormalities were recorded. The late response abnormalities may indicate subclinical functional or anatomical impairment of the low brainstem reticular formation in patients with chronic renal failure. (C) 2002 Elsevier B.V. Ltd. All rights reserved.