title: [The functional recovery of the internal anal sphincter and the restoration of continence after rectopexy for rectal prolapse].
abstract: Eleven patients with full thickness rectal prolapse underwent ambulatory fine wire electromyography (EMG) of the internal anal sphincter (IAS), external anal sphincter and puborectalis muscle, and anorectal manometry using a computerised system. Examinations were performed preoperatively and at 3 months following rectopexy. The median preoperative IAS EMG frequency was 0.21 Hz (range = 0.05-0.30) and the median preoperative resting anal pressure (RAP) was 13 cmH2O (range = 2-84 cmH2O). A significant improvement in the IAS EMG frequency (median = 0.31 Hz; 0.23-0.47 Hz; p < 0.02) and RAP (median = 30 cmH2O; 20-84 cmH2O; p < 0.01) was noted post-rectopexy but these parameters remained significantly different from a group of normal controls (median IAS EMG frequency = 0.48 Hz; 0.25-0.61 Hz; median RAP = 76 cmH2O; 22-120 cmH2O). We suggest that repair of the prolapse allows the IAS to recover by removing the cause of persistent recto-anal inhibition.
authors.affiliation: Dept. of Surgery, Royal Infirmary of Edinburgh.
authors.forename: F V
authors.initials: FV
authors.lastname: Gammarota
authors.forename: R
authors.initials: R
authors.lastname: Farouk
authors.forename: G S
authors.initials: GS
authors.lastname: Duthie
authors.forename: D C
authors.initials: DC
authors.lastname: Bartolo
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001003:Anal Canal / Q000503:physiopathology*; D004576:Electromyography / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D005242:Fecal Incontinence / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008365:Manometry / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D008875:Middle Aged; D011184:Postoperative Period; D011446:Prospective Studies; D012005:Rectal Prolapse / Q000150:complications / Q000453:epidemiology / Q000503:physiopathology* / Q000601:surgery; D012007:Rectum / Q000601:surgery*
vernacular_title: Recupero funzionale dello sfintere anale interno e ripristino della continenza dopo rettopessia per prolasso rettale.