Study design, materials and methods
A retrospective study of 24 patients over 3 years who presented to Urology department with recurrent retention of urine or Overflow Incontinence in the early post operative period.
Majority of patients had a history of post-operative catheterisation for Post-operative Urinary retention(POUR) and required a
re-catheterisation .
Trial without catheter(TWOC) was given after 5 days of secondary catheterisation.
All patients were treated with Intermittent catheterisation(IC) after a failed secondary catheterisation for a period upto 4 weeks and IC volume was noted.
Patients were evaluated at 4 weeks and 3 months with Uroflowmetry and Urodynamic study.
Voiding pattern and Urodynamic parameters were analysed against : Time to Primary and Secondary catheterisation , Volume of Urine drained at catheterisation to see for statistical association.
Interpretation of results
: Neglected POUR is a consequence of undetected or inadequately treated acute retention
: A primary, temporary neurogenic detrusor dysfunction may ensue
: Persistent bladder overdistension causes a rise in intravesical pressure accompanied with a drop in bladder blood flow ,progressive
intramural ischemia will eventually lead to nerve and muscle damage damage.
:The main factor for detrusor dysfunction was the prolonged over distension which was overlooked because the patient was not in
retention but had overflow incontinence.
:It may be treated with a prolonged Indwelling catheter or Intermittent catheterisation (IC)
:IC may promote early recovery of bladder function with less incidence of CAUTI.
: Parameters which co-relate with irreversible Detrusor dysfunction are: Time to first catheterisation( more than 10 hours ) and
volume of retention more than 1 litre.
: The most important predictors of recovery of detrusor function was retention less than 9 hours, retention volumes < than 1200 ml
and time to second catheterisation (< 3 days )