Objective:To investigate the application of damage control surgery in treatment of patients with severe thoracic and abdominal injuries. Methods:A retrospective study was done on 37 patients with severe thoracic and abdominal injuries who underwent damage control surgery from January 2000 to October 2006 in our department.There were 8 cases of polytrauma(with thoracic injury most commonly seen),21 of polytrauma(with abdominal injury most commonly seen)and 8 of single abdominal trauma.Main organ damage included smashed hepatic injuries in 17 cases, posterior hepatic veins injuries in 8,pancreaticoduodenal injuries in 7,epidural or subdural hemorrhage in 4, contusion and laceration of brain in 5,severe lung and bronchus injuries in 4,pelvis and one smashed lower limb wound in 3 and pelvic fractures and retroperitoneal hemorrhage in 6.Injury severity score(ISS)was 28-45 scores(38.4 scores on average),abbreviated injury scale (AIS)≥4.13.The patients underwent arteriography and arterial embolization including arteria hepatica embolization in 4 patients,arteria renalis embolization in 2 and pelvic arteria retroperitoneal embolization in 7.Once abbreviated operation finished,the patients were sent to ICU for resuscitation.Twenty-four cases underwent definitive operation within 48 hours after initial operation,5 underwent definitive operation within 72 hours after initial operation,2 cases underwent definitive operation postponed to 96 hours after initial operation for secondary operation to control bleeding because of abdominal cavity hemorrhea. Two cases underwent urgent laparotomy and decompression because of abdominal compartment syndrome and 2 cases underwent secondary operation because of intestinal fistulae (1 case of small intestinal fistula and 1 colon fistula)and gangrene of gallbladder. Results:A total of 28 patients survived,with a survival rate of 75.68%,and 9 died(4 died within 24 hours and 5 died 3-9 days after injury).The trauma deaths at the early stage were caused by severe primary injuries resulting in failure of respiration and circulation,while mortality at the later stage was caused by multiple organ failure. Conclusions:Damage control surgery is important for the treatment against severe thoracic and abdominal injuries.It is suggested that the surgeon should select the reasonable auxiliary examination before operation,and take the proper time to perform damage control and definitive surgery. Objective: To investigate the application of damage control surgery in treatment of patients with severe thoracic and abdominal injuries. Methods: A retrospective study was done on 37 patients with severe thoracic and abdominal injuries who underwent damage control surgery from January 2000 to October 2006 in our department. There were 8 cases of polytrauma (with thoracic injury most commonly seen), 21 of polytrauma (with abdominal injury most commonly seen) and 8 of single abdominal trauma. Main organ damage included smashed hepatic injuries in 17 cases, posterior hepatic veins injuries in 8, pancreaticoduodenal injuries in 7, epidural or subdural hemorrhage in 4, contusion and laceration of brain in 5, severe lung and bronchus injuries in 4, pelvis and one smashed lower limb wound in 3 and pelvic fractures and retroperitoneal hemorrhage in 6. Injury severity score (ISS) was 28-45 scores (38.4 scores on average), abbreviated injury scale (AIS) ≥ 4.13. The patients underwent arteriography and arterial e mbolization including arteria hepatica embolization in 4 patients, arteria renalis embolization in 2 and pelvic arteria retroperitoneal embolization in 7. Once abbreviated operation finished, the patients were sent to ICU for resuscitation.Twenty-four cases underwent definitive operation within 48 hours after initial operation, 5 underwent definitive operation within 72 hours after initial operation, 2 cases underwent definitive operation postponed to 96 hours after initial operation for secondary operation to control bleeding because of abdominal cavity hemorrhea. Two cases underwent urgent laparotomy and decompression because of abdominal compartment syndrome and 2 cases underwent secondary operation because of intestinal fistulae (1 case of small intestinal fistula and 1 colon fistula) and gangrene of gallbladder. Results: A total of 28 patients survived, with a survival rate of 75.68%, and 9 died (4 died within 24 hours and 5 died 3-9 days after injury). The trauma deaths at the early stage w ere caused by severe primary injuries resulting in failure of respiration and circulation, while mortality at the later stage was caused by multiple organ failure. Conclusions: Damage control surgery is important for the treatment against severe thoracic and abdominal injuries. It is suggested that the surgeon should select the reasonable auxiliary examination before operation, and take the proper time to perform damage control and definitive surgery.