INSTITUTE FOR ALGORITHMIC MEDICINE Penetrating Abdominal Trauma Index Purpose:To use the Penetrating Abdominal Trauma Index to assess the severity of injury in patients with knife, gunshot or other penetrating wounds to the abdomen.    Please check the appropriate column for each clinical findings   none single wall <= 25% wall > 25% wall duodenal wall & blood supply pancreatico-duodenectomy   duodenum     none tangential through-and-through (duct intact) major debridement or distal duct injury proximal duct injury pancreatico-duodenectomy   pancreas     none nonbleeding peripheral bleeding, central or minor debridement major debridement or hepatic artery ligation lobectomy lobectomy with caval repair or extensive bilobar debridement   liver     none serosal single wall <= 25% wall > 25% wall colon wall and blood supply   large intestine     none <= 25% wall > 25% wall complete transection interposition grafting or bypass ligation   major vascular     none nonbleeding cuatery or hemostatic agent minor debridement or suturing partial resection splenectomy   spleen     none nonbleeding minor debridement or suturing major debridement pedicle or major calyceal nephrectomy   kidney     none contusion chole-cystectomy <= 25% common duct wall > 25% common duct wall biliary enteric reconstruction   extrahepatic biliary     none single wall through-and-through < 25% wall or 2-3 injuries > 25% wall or 4-5 injuries wall and blood supply or > 5 injuries   small bowel     none single wall through-and-through minor debridement wedge resection > 35% resection   stomach     none contusion laceration minor debridement segmental resection reconstruction   ureter     none single wall through-and-through debridement wedge resection reconstruction   bladder     none periosteum cortex through-and-through intra-articular major bone loss   bone     none nonbleeding small hematoma nonbleeding large hematoma suturing ligation of isolated vessels ligation of named vessels   minor vascular