Traumatic Aortopulmonary Fistula: An Acquired Type 1 Aortopulmonary Window.

We report a patient with an acquired traumatic aortopulmonary window. The patient presented with an aortopulmonary fistula between the proximal ascending aorta and pulmonary trunk, which was missed on the initial hospital admission. The 26-year-old patient presented with high-output cardiac failure and examination features of a diastolic runoff. Patch closure of the defect using a sandwich technique was undertaken, with resolution of symptoms.