title: Two-patch repair for atrioventricular septal defect with mitral aneurysm.
abstract: We experienced an unusual case of partial atrioventricular septal defect in an elderly patient. A preoperative ultrasonic cardiogram revealed the mitral leaflet pouching toward the right atrium and suggested the presence of a ventricular septal defect underneath the atrioventricular valve. The mitral aneurysm was diagnosed as a septal aneurysm on preoperative ultrasonic cardiogram. A crescent-shaped Dacron patch (InterVascular S. A., La Ciotat Cedex, France) was placed beneath the atrioventricular valve to prevent rupture of the mitral aneurysm and support the anterior mitral leaflet by creating a new annulus. We believe that this is the first report describing this type of mitral aneurysm and its surgical repair.
authors.affiliation: Department of Surgery, Division of Cardiovascular Surgery, Nippon Medical School, Tokyo, Japan.
authors.forename: Hajime
authors.initials: H
authors.lastname: Imura
authors.forename: Shun-ichiro
authors.initials: S
authors.lastname: Sakamoto
authors.forename: Yuji
authors.initials: Y
authors.lastname: Maruyama
authors.forename: Masami
authors.initials: M
authors.lastname: Ochi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Shimizu
mesh_terms: D000368:Aged; D006348:Cardiac Surgical Procedures / Q000379:methods*; D003937:Diagnosis, Differential; D017548:Echocardiography, Transesophageal; D005260:Female; D006322:Heart Aneurysm / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006345:Heart Septal Defects, Ventricular / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008943:Mitral Valve; D019736:Prostheses and Implants; D011474:Prosthesis Design; D013526:Surgical Mesh