Ostomies

 

Ostomies

  • location of ostomy determines the consistency of stool

  • ileostomy bypasses the entire large intestine
  • both ileostomies and ascending colonostomies freq liquid stool

  • Transverse Colonostomy generally results in a solid stool

  • Sigmoid colonostomy results in a near normal stool

 

3 types of colonsotomy

  1. Loop colostomy
  2. end colostomy
  3. double-barrel colonostomy

 

Loop Colonostomy

  • performed in med emergency
  • when closure of the colostomy is anticipated
  • temporary large stoma constructed in the transverse colonostomies
  • bowel loop brought to surface
  • external supporting device such as plastic rod prevents it from slipping back into place
  • bowel then sutured to abdominal wall
  • communicating wall remains b/t distal and proximal abdomen
  • proximal end drains stool
  • distal end drain mucus
  • 7-10d supporting device removed

 

End Colostomy

  • one stoma formed from one end of the bowel with the distal portion of the GI tract either removed or sewn closed and left in the abdominal cavity
  • typically a result of colorectal cancer

 

Double-Barrel Colostlomy

  • bowel os surgically severed and the 2 ends brought out onto the abdomen
  • consists of 2 stomas, proximal functioning and distal nonfunctioning
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