摘要
目的探讨A型主动脉夹层的发生与主动脉近端形态改变的关系。方法应用二维经胸超声心动图及经食道超声心动图技术,分别对36例A型主动脉夹层患者、150例不伴主动脉夹层的主动脉近端形态改变的患者和50例正常人的主动脉近端管径于四个水平分别进行测量。结果正常对照组主动脉近端内径,主动脉窦部>升主动脉近端>窦管结合处>瓣环,经方差分析检验,P均<0.05。与正常对照组比较,主动脉近端形态改变组和主动脉夹层组主动脉窦部、窦管结合处和升主动脉近端的管径均较正常对照组明显增加(P<0.01);但主动脉夹层组升主动脉近端>窦管结合处>主动脉窦部>瓣环,经方差分析检验,P均<0.05。与主动脉近端形态改变组比较,主动脉夹层组主动脉窦部、窦管结合处和升主动脉近端的管径增大更为明显(P<0.01)。主动脉近端内径增宽患者分析发现,主动脉近端内径越大,发生夹层的几率越高。结论A型主动脉夹层主动脉近端明显扩张,主动脉近端扩张,尤其升主动脉近端、窦管结合处扩张与A型主动脉夹层密切相关,主动脉近端扩张发生夹层的可能性与其扩张程度直接相关。
Objective To assess the relationship between morphology of proximal aortic and aortic dissection. Methods The study population was drawn from 36 type A aortic dissection patients, 150 proximal aortic dilation patients and 50 normal control subjects. Two - dimensional transthoracic echocardiography and transesophageal muhiplane echocardiography was used to obtain the values of proximal aortic diameters at four levels. Results The dimensions of the four proximal aortic levels of normal adult were obtained as follows, Valsalva sinuses 〉 proximal ascending aorta 〉 sinotubular junction 〉 anulus （ P 〈 0.05 ）. Compared with control - subjects, the diastolic diameter of the Valsalva sinuses, sinotubular junction and proximal ascending aorta were increased significantly（P 〈0.01 ） in patients with proximal aortic dilation and type A aortic dissection. Type A aortic dissection patients, proximal ascending aorta 〉 sinotubular junction 〉 Valsalva sinuses 〉 anulus （ P 〈 0. 05 ）. Compared with proximal aortic dilation patients, the diastolic diameter of the Valsalva sinuses, sinotubular junction and proximal ascending aorta were increased significantly （ P 〈 0.01 ） in patients with type A aortic dissection. To analyse proximal aortic dilation patients, the Wider the dimensions of the proximal aorta is, the higher incidence of type A aortic dissection will be. Conclusion The marked dilation of the proximal aortic is usually present in patients with type A aortic dissection. Proximal aortic dilation close relevant to type A aortic dissection. For patients with dilation of the proximal ascending aorta, the likelihood of dissection is directly related to the degree of dilation.
出处
《社区医学杂志》
2008年第7期9-11,共3页
Journal Of Community Medicine
