The differential diagnosis of the left to right shunts at the base of the heart must include aortopulmonary septal defect.

• 摘要发现由左侧至右侧血流短路的先天性心臓病时，其鑑别诊断宜包含大动脉-主肺动脉窗，或即大动脉-主肺动脉中隔缺损。