创伤已成为当今人类死亡的主要原因之一。在直接导致死亡的因素中,胸部创伤占全部创伤死亡的20%~25%~([1])。H.R.Champion等~([2])报告多发伤合并胸部损伤常是心肌挫伤的主要原因,而心肌挫伤在胸部损伤中发生率可高达25%,严重者则可表现为顽固性心功能衰竭、肺水肿及反复发作的心律失常~([3])。有研究显示~([4]),心肌肌钙蛋白T Trauma has become one of the major causes of human deaths today. Thoracic injuries account for 20% -25% of all traumatic deaths among the direct causes of death (1). HRChampion et al. (2) reported that multiple injuries and chest injuries were the main causes of myocardial contusion. However, the incidence of myocardial contusion was as high as 25% in chest injuries and in severe cases as refractory heart failure, lung Edema and recurrent arrhythmia ~ ([3]). Studies have shown that ~ ([4]), cardiac troponin T