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目的:探讨经胸超声心动图在婴幼儿先天性主动脉瓣上狭窄(SVAS)诊断中的临床应用价值。方法:对我院2013-2016年诊断的7例疑似Williams综合征的主动脉瓣上狭窄婴幼儿患者(≤4岁)进行超声心动图检查,主要观察内容包括:(1)狭窄累及范围;(2)狭窄程度;(3)其他合并畸形。将所见与其他影像学检查结果进行对比并进行随访。结果:7例患儿狭窄累及范围不一,但均累及窦管结合部伴升主动脉管壁增厚,且所有患儿均合并有其他心血管畸形。5例接受CTA检查的患儿结果与超声所见完全相符。能后续随访的3例患儿超声心动图检查结果显示,随着患儿的成长,狭窄程度无明显变化。结论:超声心动图是确诊、评估SVAS狭窄程度、范围及随访婴幼儿SVAS的首选影像学检查方法。
Objective: To investigate the clinical value of transthoracic echocardiography in the diagnosis of congenital aortic stenosis (SVAS) in infants and young children. Methods: Echocardiography was performed on 7 infants with aortic valve stenosis (≤4 years) with suspected Williams syndrome diagnosed in our hospital from 2013 to 2016. The main observations include: (1) the extent of stenosis and ( 2) stenosis; (3) other combined deformities. The findings and other imaging findings were compared and followed up. Results: The range of stenosis was different in 7 cases, but both involved the sinus junction and thickened ascending aortic wall, and all other children had other cardiovascular malformations. The results of 5 children who underwent CTA examination were completely consistent with those seen by ultrasound. Echocardiography examination of 3 children who could follow-up showed no significant changes of stenosis with the growth of children. Conclusion: Echocardiography is the first choice of radiological examination for the diagnosis and evaluation of SVAS stenosis, extent and follow-up.