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肺动脉吊带(pulmonary artery sling,PAS),是一种罕见的先天性心血管畸形,又称迷走左肺动脉,即左肺动脉起源于右肺动脉起始部的后方,并绕过右主支气管,向左穿行于食管和气管之间,到达左侧肺门,在气管远端和主支气管近端形成吊带[1]。示意图见图1。由于本病发病率低,易漏诊,且出生后均需手术治疗,因此如果产前诊断超声能在胎儿期及时发现PAS,准确有效地提供病情信息,指导临床医师采取最合适的干预措施,其意义将非常重大。
Pulmonary artery sling (PAS), a rare congenital cardiovascular malformation, is also called the vagal left pulmonary artery, the left pulmonary artery originating in the rear of the starting portion of the right pulmonary artery and bypasses the right main bronchus and travels to the left Between the esophagus and the trachea, reaching the left hilar, the distal end of the trachea and the main bronchus form a harness [1]. Schematic diagram shown in Figure 1. Because of the low incidence of the disease, easy to misdiagnosis, and require surgical treatment after birth, so if the prenatal diagnosis of ultrasound can be found in the fetal period of PAS, accurately and effectively provide information on the condition, to guide clinicians to take the most appropriate interventions, the Meaning will be very significant.