目的强化对非胸腹疼痛的急性主动脉夹层分离的认识,以期早警觉、早诊断、早治疗,改善预后,降低死亡率。方法回顾性分析12例主动脉夹层分离患者的临床资料。结果 12例首诊非疼痛的患者,经辅助检查明确为夹层动脉瘤。结论对可疑病例应注重相关病史,认真全面体检,进行特异性辅助检查以提高早期诊断率。及早诊断、及时处理,尤其是控制好血压,是抢救成功、降低死亡率的关键。 Objective To intensify the understanding of acute aortic dissection without thoracoabdominal pain in order to early warning, early diagnosis, early treatment, improve prognosis and reduce mortality. Methods The clinical data of 12 patients with aortic dissection were retrospectively analyzed. Results Of the 12 patients who were diagnosed as non-painful first, they were clearly diagnosed as dissecting aneurysms by the auxiliary examination. Conclusion Suspected cases should pay attention to the relevant medical history, a comprehensive and serious physical examination, specific auxiliary examination to improve the early diagnosis rate. Early diagnosis and timely treatment, especially the control of blood pressure, is the key to successful rescue and reduce mortality.