Mechanical obstruction
Mechanical obstruction
Classification location ■Colonic obstruction Dilated colon only Dilated small bowel (incompetent ileo- cecal valve) Gas-fluid levels distal to hepatic flexure (fluid is normal in cecum and ascending colon) Cecum most dilated portion (>10cm will be critical)
Classification - location ◼ Colonic obstruction – Dilated colon only – Dilated small bowel (incompetent ileocecal valve) – Gas-fluid levels distal to hepatic flexure (fluid is normal in cecum and ascending colon) – Cecum most dilated portion (>10cm will be critical)
Classification location ■Localized ileus Causes:often associated with adjacent acute inflammatory process (acute pancreatitis,acute appendicitis,etc.) Sentinel loop:loops near the local peritonitis Closed-loop obstruction
Classification – location ◼ Localized ileus – Causes: often associated with adjacent acute inflammatory process (acute pancreatitis, acute appendicitis, etc.) ◼ Sentinel loop: loops near the local peritonitis ◼ Closed-loop obstruction
