title: Analysis of biomechanical parameters extracted from anorectal manometry of fecally-continent and incontinent patients.
abstract: OBJECTIVE
  to evaluate the average resulting area from the Pressure x Time curves resulting from the manometric anorectal exam and compare it with the support capacity of voluntary squeeze.
  
  
  METHODS
  the data set was represented by data from 11 exams from continent patients and eight exams from patients with grade III fecal incontinence. The manometric curves were delineated, and the areas and support capacity of voluntary squeeze calculated, by means of the R computer language and the algorithm developed.
  
  
  RESULTS
  the resulting averages for support capacity of voluntary squeeze in continent patients and patients with grade III fecal incontinence were 33.07 seconds and 30.76 seconds (p>0.05) and the averages for area were 2362.04 mmHg x second and 947.92 mmHg x second (p<0.05), respectively.
  
  
  CONCLUSIONS
  the average resulting area is able to differentiate continent patients from incontinent and is shown to be a possible parameter in the analysis of biomechanical behavior related to the mechanisms of anorectal continence.
authors.affiliation: Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Brazil. biancaespindola@gmail.com
authors.forename: Bianca
authors.initials: B
authors.lastname: Espindola
authors.forename: Chris Mayara dos Santos
authors.initials: CM
authors.lastname: Tibes
authors.forename: Huei Diana
authors.initials: HD
authors.lastname: Lee
authors.forename: Renato Bobsin
authors.initials: RB
authors.lastname: Machado
authors.forename: André Gustavo
authors.initials: AG
authors.lastname: Maletzke
authors.forename: Wu Feng
authors.initials: WF
authors.lastname: Chung
mesh_terms: D001003:Anal Canal / Q000502:physiology* / Q000503:physiopathology; D001696:Biomechanical Phenomena; D005242:Fecal Incontinence / Q000503:physiopathology*; D006801:Humans; D008365:Manometry; D012007:Rectum / Q000502:physiology / Q000503:physiopathology*