图9-22Edwards主动脉弓畸形模型DA：降主动脉AA：升主动脉RS：右锁骨下动脉LS：左锁骨下动脉RC：右颈总动脉LC：左颈总动脉E：为食管T：为气管A.主动脉双弓；B.正常左位主动脉弓；C.左弓右锁骨下动脉迷走；D.右位主动脉弓；E.右弓左锁骨下动脉迷走听诊可及气道的喘鸣音，可有轻度的青紫出现，喜欢背屈、仰颈体位。
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