title: [Correlation coefficient of urodynamic data used in prostatism].
abstract: OBJECTIVE
  To determine the usefulness of different urodynamic data and their relationship.
  
  
  METHODS
  105 adult males with prostatism were evaluated urodynamically. Data were obtained utilizing the Abrhams and Griffiths and the Schaeffer models.
  
  
  RESULTS
  Our results show that the urinary flow rate correlates directly with bladder contractibility and inversely with the urethral resistance parameters.
  
  
  CONCLUSIONS
  The urethral resistance was produced by two independent factors: a factor which resists initiation of voiding, measured by the opening pressure according to the Schaeffer model; a second factor which opposes maintenance of voiding, measured by the PURR curvature of the Schaeffer model and by the slope of the Abrhams and Griffiths model. Bladder contractibility was related to pressure at maximum flow rate of the Schaeffer model.
authors.affiliation: Servicio Urología, Hospital Clínico de San Carlos, Universidad Complutense, Madrid, España.
authors.forename: J
authors.initials: J
authors.lastname: Salinas Casado
authors.forename: M
authors.initials: M
authors.lastname: Vírseda Chamorro
authors.forename: J M
authors.initials: JM
authors.lastname: Adot
authors.forename: M
authors.initials: M
authors.lastname: Esteban Fuertes
authors.forename: L
authors.initials: L
authors.lastname: Resel Estévez
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D008297:Male; D008875:Middle Aged; D011470:Prostatic Hyperplasia / Q000503:physiopathology*; D014563:Urodynamics