في هذا التكوين التشريحي، يقع الأبهر النازل بعيداً نحو الأمام بالنسبة للعمود الفقري. ونتيجةً لذلك، يصبح الجزء الأوسط من القصبة الرئيسية اليسرى (L2) محاصراً بين الأبهر النازل والشريان الرئوي، مما يؤدي إلى ضغط خلفي وتضيق في القصبة.
DOI: 10.1016/j.sempedsurg.2021.151062
If the descending aorta is located too far anteriorly, the mid-portion of the left mainstem bronchus (L2) can be trapped between the descending aorta and pulmonary artery, resulting in narrowing the bronchus.
A descending aorta located anterior to the spine can cause posterior compression on the mid-portion of the left mainstem bronchus.
In our opinion, all patients need to be optimized using medical therapy prior to considering surgical correction if that is an option, at a minimum to control secretions and infections, as well as optimum nutrition and at least two weeks of adequate growth and positive nitrogen balance in order to tolerate the stress of surgery.
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