超声心动图评估完全型肺静脉异位连接中肺静脉病变

Echocardiography in evaluation of pulmonary venous lesion in total anomalous pulmonary venous connection

目的探讨超声心动图评估完全型肺静脉异位连接(TAPVC)中肺静脉病变的价值。方法收集55例TAPVC患儿的超声心动图资料,并与CTA及术中所见进行对比。结果应用超声心动图根据肺静脉引流部位对55例TAPVC患儿进行分类,分为心上型24例、心内型20例、心下型7例及混合型4例。15例垂直肺静脉梗阻中,心上型的梗阻多出现在垂直静脉与无名静脉或上腔静脉之间,心下型的梗阻均出现在垂直静脉与肝静脉或门静脉之间。肺静脉狭窄4例,其中3例局限性狭窄均为心内型,出现在分支肺静脉与共同肺静脉腔或右心房之间,1例弥漫性狭窄为心下型。分支肺静脉异常9例,其中超声心动图仅检出1例,而CTA检出8例。结论超声心动图能对TAPVC中的肺静脉的引流、梗阻和分支肺静脉近端的狭窄做出更为全面的评价。CTA评估分支肺静脉的汇入和数目异常及远端肺静脉的成像方面优于超声心动图。

Objective To explore the value of echocardiography in evaluation of pulmonary venous in total anomalous pulmonary venous connection（TAPVC）.Methods Fifty-five children with TAPVC were enrolled in the study.The data of echocardiography and CT angiography were retrospectively analyzed and compared with intraoperative findings.Results Totally 55 patients with TAPVC were classified into supra-cardiac type（n=24）,cardiac type（n=20）,infra-cardiac type（n=7）and mixed type（n=4）according to the sites of drainage of pulmonary venous in echocardiography.In 15 patients with obstruction of pulmonary vertical vein,the sites of obstruction in the supra-cardiac type mostly presented between vertical vein and superior vena cava or innominate vein,and the sites of obstruction in the infra-cardiac presented all between vertical vein and hepatic or portal vein.In 4 patients with pulmonary vein stenosis,3 cases with local pulmonary vein stenosis were all cardiac type,which presented between individual pulmonary vein and common confluence or right atrium;1 patient with diffuse pulmonary vein stenosis was infra-cardiac type.In 9 patients of abnormal individual pulmonary vein,8 cases were not detected by echocardiography,but all were detected by CT angiography.Conclusion Echocardiography is able to make more comprehensive evaluation for the pulmonary venous drainage,obstruction,and proximal stenosis of individual pulmonary vein in TAPVC.CT angiography is superior in evaluation of abnormalities of connection and amount of individual pulmonary vein,and imaging of distal pulmonary vein.