title: Pseudoaneurysm of the mitral-aortic intervalvular fibrosa.
abstract: Pseudoaneurysm of the mitral-aortic intervalvular fibrosa (P-MAIVF) is a rare but potentially fatal complication of infective endocarditis and aortic valve surgery. 149 patients with P-MAIVF, including 7 cases in our hospital and 142 cases from the literatures, were comprehensively analyzed. P-MAIVF is located in the mitral-aortic intervalvular fibrosa area, which communicates with the left ventricular outflow tract. The cavity of P-MAIVF expands during systole and collapses during diastole. Endocarditis and aortic valve surgery are the most frequent causes. Symptoms of endocarditis, chest pain, heart failure, dyspnea, cerebrovascular accidents and systemic embolism are important clinical presentations. The formation of a fistulous tract, coronary artery compression, and rupture into pericardium are important complications. Transesophageal echocardiography is superior to transthoracic echocardiography in identifying P-MAIVF. Surgery is the treatment of choice with P-MAIVF repair and aortic valve replacement.
authors.affiliation: Department of Ultrasonography, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Hubei Provincial Key Laboratory of Molecular Imaging, Wuhan 430022, People's Republic of China.
authors.forename: Mingxing
authors.initials: M
authors.lastname: Xie
authors.forename: Yuman
authors.initials: Y
authors.lastname: Li
authors.forename: Tsung O
authors.initials: TO
authors.lastname: Cheng
authors.forename: Xinfang
authors.initials: X
authors.lastname: Wang
authors.forename: Qing
authors.initials: Q
authors.lastname: Lu
authors.forename: Lin
authors.initials: L
authors.lastname: He
authors.forename: Manli
authors.initials: M
authors.lastname: Fu
mesh_terms: D017541:Aneurysm, False / Q000175:diagnosis* / Q000453:epidemiology; D001021:Aortic Valve / Q000473:pathology* / Q000601:surgery; D004696:Endocarditis / Q000175:diagnosis* / Q000453:epidemiology; D005355:Fibrosis / Q000175:diagnosis / Q000453:epidemiology; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D008943:Mitral Valve / Q000473:pathology* / Q000601:surgery