Fistula between aorta and left atrium due to bacterial endocarditis.

Aortic dissection with aorto-left atrial fistula formation soon after aortic valve replacement: A lethal complication diagnosed by transthoracic and transesophageal echocardiography

“…All previously reported aortocameral fistulas involving communications between the aorta and LA have been associated with bacterial endocarditis, paravalvular abscess, ruptured sinus of Valsalva aneurysm, Behçet's syndrome, or aortic dissection. [1][2][3][4][5][6][7][8][9] Aortocameral fistula is rare, but when it occurs the frequency of previous aortic valve replacement, particularly for aortic regurgitation, is high. 8 In comparison with previous reports, the current case is unique in the appearance of the complication at the immediate postoperative period.…”

Potential chronic abscess cavity that masqueraded as sinus of valsalva aneurysm: is TOE a most vital tool?

“…Of these 13% resulted in fistulae into LA and another 13% had resulted in perforation of the anterior mitral valve leaflet. Aorto-LA fistulas show a close association with bacterial endocarditis, abscess cavities, ruptured SV aneurysm, Bechet syndrome or aortic dissection [ 7 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ].…”

Noninvasive Detection of Cardiac Abscesses Complicating Infective Endocarditis

“…In this patient, the abscess disdirections. Once the aortic wall is invaded, dissection can occur in an anterior-posterior direction, may con tinue along the arterial wall, may rupture into the arterial lumen in the case of cephalad extension, or may rupture into a cardiac chamber [2] or the pericardial sac in the case of caudal extension or dissection.…”