主动脉弓离断的超声心动图诊断

Two-dimensional echocardiographic features of interruption of aortic arch

目的 提高超声对主动脉弓离断(IAA)的诊断能力。方法 回顾性分析5例IAA胸前及胸骨上窝二维及多普勒超声表现。结果 A型中断4例,B型中断1例,均伴有空间隔缺损(VSD)和重度肺高压(PH)。结论 术前超声心动图能够对IAA作出明确诊断。二维超声心动图(2DE)检查发现升主动脉细小,粗大肺动脉及其肺高压应高度怀疑本病,在胸骨上窝主动脉弓长轴观作重点探测。

Purpose To improve the diagnostic capacity of echocardiography for interruption of aortic arch (IAA). Methods To analyse the features of two - dimensional echocardiography and Doppler imaging from the panasternal short axis of the aortic valve and the suprasternal notch long axis of the aorta in 5 cases of IAA. Results there are 4 cases of type A of IAA and one case of type B of IAA. All cases were associated with a ventricular septal defect and severe pulmonary hypertension. Conclusions Echocardiography can make a definite diagnosis of IAA in pre - operation. IAA is suspected if it is found to have a hypoplastic ascending aorta and an enlarged pulmonary artery with pulmonary hypertension during echocardiographic examination. So the suprasternal notch long axis of the aorta is a important view for detecting IAA.