title: Carpal tunnel syndrome. Age, nerve conduction severity and duration of symptomatology.
abstract: Median sensory and motor distal latencies (SDL/MDL) were correlated with age and duration of symptomatology in 1498 carpal tunnel syndrome (CTS) patients (17-90 years old, 87.6% female). Patients were distributed in four groups according to distal latencies severity. There was an increase in age as long as SDL/MDL became more severe, ranging from 47.5 to 67 years old (mild to severe-absence potentials in both hands groups, respectively). There was a less dramatic increase in duration of complaints as long as SDL/MDL became more severe, ranging from 12 to 30.7 months (mild to severe-absence potentials in both hands groups, respectively). Aging correlates more positively than duration of complaints with severity of SDL/MDL in CTS. The effects of increasing median blockage in CTS are more severe as long as patients become older regardless duration of symptomatology.
authors.affiliation: Department of Neurological Sciences, EMG Lab, Faculty of Medicine, São Jose do Rio Preto, Brazil. jaris@zaz.com.br
authors.forename: J A
authors.initials: JA
authors.lastname: Kouyoumdjian
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002349:Carpal Tunnel Syndrome / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012720:Severity of Illness Index; D013997:Time Factors