Rupture of postcoarctation mycotic aneurysms of the aorta.

Sudden and usually fatal rupture is a common complication of postcoarctation mycotic aneurysms. Prompt operative treatment is always indicated, and can be performed using one of three techniques depending on the adequacy of the collateral circulation and the presence or absence of active bacterial infection. Renal dysfunction commonly is associated with bacterial endarteritis and is secondary to an immune-complex glomerulonephritis. The patient reported here was treated successfully by the placement of an emergency axillofemoral bypass graft, removal of the infected portion of the descending thoracic aorta, and delayed intrathoracic reconstruction.