Small and large Bowel obstruction Flashcards
3 reasons for mechanical bowel obstruction
1) colon cancer
2) diverticular stricture
3) volvulus
Example of intraluminal causes of mechanical obstruction of the large bowel
- foreign body
- gallstone ileus
Example of intraMURAL causes of mechanical obstruction of the large bowel
- Crohn’s
- sarcoma
- lymphoma
- radiation stricture
most common volvulus complications
cecal
sigmoid
transverse
Mechanical causes of small bowel obstruction
adhesions
hernias
Example of INTRAluminal causes of mechanical obstruction of the SMALL bowel
- gallstone ileus
- Foreign body
- intessuception
- bezoar
Example of intraMURAL causes of mechanical obstruction of the SMALL bowel
Crohn's radiation strictures sarcoma lymphoma adenocarcinoma
EXTRAMURAL causes of both small and large bowel obstruction includes
peritoneal carcinomatosis
Key features of pseudocolonic obstruction
- not painful
- no nausea and vomiting
iF NO or decreased bowel sounds, most likely cause of obstruction is
functional - paralytic ileus
If bowel sounds are hyperactive or high pitched then
mechanical
how do you treat a sigmoid volvulus
- colonoscopic decompression/OR
how do you treat a cecal volvulus
hemicolectomy
anyone who presents with abdominal pain what lab test should be ordered?
LIPASE
First thing if you suspect a bowel obstruction is
get 3VA - x-rays so you can decide on ct
