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Continent Urinary Diversion. Phichaya Sujijantararat 24 October 2003. Continent Urinary Diversion. A system created to collect and store urine before it is removed from the body. Urinary Diversion. Classification:
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Continent Urinary Diversion Phichaya Sujijantararat 24 October 2003
Continent Urinary Diversion • A system created to collectand store urine before it is removed from the body.
Urinary Diversion Classification: 1. Orthotopic (emptied through urethra ) vs non-orthotopic 2. Continent vs non-continent
Who need it ? 1. Congenital anomalies eg. Exstrophy- Epispadias Complex , Cloacal exstrophy, Bilateral Single Ectopic Ureters 2. Neuropathic bladder 3. Bladder loss eg. Pelvic malignancy 4. Radiation damage 5. Urethral loss
Adult Restoration of previously existing state Child Dawn of the new life Continent Urinary Diversion
Patient selection - ability to self catheterize r/o quadriplegia, multiple sclerosis - highly motivated & intelligence - renal impairment Cr < 1.8 mg% or Ccr > 60 ml/min
Continent Urinary Diversion Three basic components: 1. Reservoir to store urine 2. Continent mechanism to retain urine 3. Channel or tunnel + catheterizable stoma to let the urine out
Continent Urinary Diversion Types of reservoir 1. Native bladder 2. Augmented bladder 3. New constructed pouch or reservoir
Reservoir requirements • Low pressure < 40 cm.H2O ( McGuire 1981 ) • Adequate capacity > 4 hourly emptying
Bowel as a pouch, not a conduit 1. Detubularize to abolish peristalsis 2. Reconfiguration to increase capacity 3. Anti-reflux to prevent renal damage 4. Continence mechanism
Continence mechanisms 1. Flap valve eg. Mitrofanoff, Monti 2. Nipple valve eg. Kock nipple 3. Hydraulic valve eg. Benchekroun
Types of channel or tunnel 1. Appendix 2. Ileum 3. Colon 4. Ureter 5. Fallopian tube
Anti-reflux techniques 1. Flap valve ( submucosal tunnel ) 2. Split cuff nipple 3. Serosal lined extramural tunnel 4. Le Duc ( mucosal trough )
Post-operative care (1) - flush stomal & pouch catheters 2/day - remove ureteric stents on day 7 - leave stomal & pouch catheters for 3 wks - cystogram or pouchogram
Post-operative care (2) - re-admission 6th wk - clamp & release stomal catheter at 2 – 3 hour interval - After the pouch expands to 300-500 ml, remove stomal catheter - start self catheterization - remove pouch catheter
Advantages • No cost for expensive external appliance • Maintain body image • No psychologic impact • Socially acceptable • Maintain sex performance ?