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 obstructionClassification – 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