Satomi G, Nakamura K, Imai Y, Takao A
Br Heart J. 1980 Mar;43(3):351-6. doi: 10.1136/hrt.43.3.351.
Two-dimensional echocardiography was performed in two cases of distal type aorticopulmonary window. The defect of the aorticopulmonary septum could be visualised in both cases in transverse section of the great arteries using our method. We make it a rule to study three different levels of section: plane 1, where the echo of the semilunar valve of the posterior great artery is well seen; plane 2, where the echo of the semilunar valve of the anterior great artery is clearly observed; and plane 3, where neither semilunar valve is seen. The aorticopulmonary septal defects were recognised at the level of plane 2 to plane 3 in our two cases. Two-dimensional contrast echocardiography was performed in one of the cases. The contrast entered the ascending aorta from the main pulmonary artery through the aorticopulmonary septal defect in early systole. Postoperatively, no defects were detected in the aorticopulmonary septum in either case using the same approach, and no passage of contrast into the ascending aorta from the pulmonary artery was noted in the case where contrast was injected. Accurate diagnosis of this anomaly can be made by visualisation of the defect utilising two-dimensional echocardiography. Typing of this anomaly, proximal, distal, or combined may be possible with our new approach.
对2例远端型主肺动脉窗患者进行了二维超声心动图检查。使用我们的方法，在大动脉的横切面上，2例患者均能观察到主肺动脉间隔缺损。我们通常研究三个不同的切面水平：平面1，可见后大动脉半月瓣回声；平面2，可清晰观察到前大动脉半月瓣回声；平面3，未见半月瓣回声。在我们的2例患者中，主肺动脉间隔缺损在平面2至平面3水平被识别。对其中1例患者进行了二维对比超声心动图检查。在收缩早期，造影剂通过主肺动脉间隔缺损从主肺动脉进入升主动脉。术后，采用相同方法，2例患者的主肺动脉间隔均未检测到缺损，在注射造影剂的病例中，未观察到造影剂从肺动脉进入升主动脉。利用二维超声心动图观察缺损可对该异常进行准确诊断。采用我们的新方法可能对该异常进行分型，即近端型、远端型或混合型。
