目的 观察急诊手术内固定治疗对创伤性连枷胸患者血流动力学的影响。方法 34例接受急诊手术内固定治疗的创伤性连枷胸患者，监测并比较麻醉诱导前、麻醉后术前、术后即刻、术后4 h和术后24 h患者心率（HR）以及心排量（CO）、肺毛细血管楔压（PCWP）、平均动脉压（MAP）和中心静脉压(CVP)等血流动力学指标的变化。结果 与麻醉诱导前和麻醉后术前比较，术后即刻、术后4 h和术后24 h患者HR和CVP显著下降(P<0.05)，CO、PCWP和MAP显著增加(P<0.05)。结论 急诊手术内固定治疗可改善创伤性连枷胸患者的血流动力学状况，具有一定的近期疗效。

Objective To investigate the effects of emergency surgical internal fixation on hemodynamics in patients with traumatic flail chest. Methods A total of 34 patients with traumatic flail chest managed by emergency surgical internal fixation were selected. The parameters of heart rate (HR), cardiac output (CO), pulmonary capillary wedge pressure (PCWP), mean arterial pressure (MAP) and central venous pressure (CVP) at the time points of before anesthesia induction, before operation after anesthesia, immediately after operation, 4 h after operation and 24 h after operation were monitored and compared. Results Compared with those at the time points of before anesthesia induction and before operation after anesthesia, HR and CVP significantly decreased (P<0.05), and CO, PCWP and MAP significantly increased at the time points of immediately after operation, 4 h after operation and 24 h after operation (P<0.05). Conclusion Emergency surgical internal fixation may improve the hemodynamics of traumatic flail chest, and has some short-term therapeutic effect on flail chest.