An unusual case report of prosthetic valve endocarditis complicated with a huge ascending aortic mycotic Pseudo aneurysm after aortic valve replacement

Pseudoaneurysm of the ascending aorta following cardiac surgery is a very rare entity and life-threatening entity due to the risk of rupture. This is a unique case of a 38-year-old male patient who presented with mycotic aneurysm of ascending aorta and aortic prosthesis endocarditis following aortic valve replacement 05 weeks earlier. The diagnosis was confirmed with the aid of transthoracic echocardiography and chest CT scan. He underwent reoperation under femoral-right atrial cardiopulmonary bypass and moderate hypothermia with no aortic clamping. The aortic prosthesis was replaced, and the mycotic aneurysm of the ascending aorta was excised and replaced by a Dacron tube. The patient was discharged after an uneventful postoperative sui. The aim of this work is to report a case of infectious pseudoaneurysm at the site of aortic cannulation secondary to endocarditis on aortic prosthesis successfully surgically repaired.