Permanent arterial stem

Permanent arterial trunk refers to the failure to separate the original arterial trunk into the aorta and the pulmonary artery due to the developmental defect of the bulbar and bulbar septum, leaving a common arterial trunk. Therefore, the left and right ventricles are ejected toward a common arterial trunk, and the semilunar valve of the arterial trunk rides over the high ventricular septal defect. Only the main trunk is anatomically seen, and there are no traces of the blocked main and pulmonary arteries, systemic circulation, and pulmonary circulation. And coronary circulation blood supply is directly from the arterial thousand. Permanent arterial trunk is an extremely rare and complicated congenital cardiovascular malformation. The incidence is about 0.5%, which accounts for about 1 to 3% of the congenital cardiovascular autopsy.

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