• M Damphousse, M Jousse, D Verollet, A Guinet, F Le Breton, P Lacroix, S Sheik Ismael, and G Amarenco.
• Service de médecine physique et de réadaptation, CHU de Rennes, 2, rue Henri-Le-Guilloux, 35033 Rennes cedex 9, France.
• Prog Urol. 2012 Apr 1;22(4):220-4.

ObjectiveProctalgia fugax (PF) is a very common condition especially in women. Causes and pathophysiological mechanisms of PF are unknown. Recently, a pudendal neuropathy was clinically suspected in women with PF. The goal of our study was to demonstrate, or not, such abnormalities by means electrophysiological testing.Patients And MethodsFifty-five patients with PF (45 female and 10 male, mean age 50.2 years) were evaluated. EMG testing with motor unit potential analysis of pelvic floor muscles (bulbocavernosus muscle and striated external anal sphincter), study of bulbocavernosus reflex and pudendal nerve terminal motor latencies (PNTML) were performed.ResultsEMG testing was altered in two males out of 10 (20%) and 29/45 females (64%). In women, denervation was found bilateral in 25/29 (86%). Sacral latency was delayed in eight out of 29 (bilateral in five cases, unilateral in three cases) and PNTML altered in 17 cases (13 bilateral alteration, four unilateral). A significant difference (P<0.002 Chi(2) test) was demonstrated between male and female concerning pelvic floor muscles denervation.ConclusionPelvic floor muscles denervation was a common feature in women suffering from PF, due to a stretch bilateral pudendal neuropathy. Distal lesions of the pudendal nerves, principally due to a stretch perineal neuropathy, can be imagined as a factor or co-factor of PF.Copyright © 2012 Elsevier Masson SAS. All rights reserved.

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