title: Partial type of common atrioventricular canal defect associated with mitral stenosis.
abstract: We report a 63-year-old woman, with a partial type of common atrioventricular canal and mitral stenosis, who was hospitalized because of dyspnea on exertion. Two-dimensional echocardiogram showed an ostium primum atrial septal defect with two well-formed AV valves located at the same level. However, both anterior and posterior mitral leaflets were markedly thickened with a thickened subvalvular apparatus, and the commisures were fused. Echocardiographic measurements demonstrated a mitral valve area of 1.48 cm2 with mild mitral regurgitation. Cardiac catheterization demonstrated mild pulmonary artery hypertension with a large left to right shunt (72%) at the atrial level. The combination of the partial type of common atrioventricular canal and mitral stenosis is rare; only one similar case has been reported previously in the literature.
authors.affiliation: Department of Internal Medicine, Toho University School of Medicine, Sakura Hospital, Chiba.
authors.forename: M
authors.initials: M
authors.lastname: Moroi
authors.forename: H
authors.initials: H
authors.lastname: Ohsawa
authors.forename: H
authors.initials: H
authors.lastname: Noike
authors.forename: T
authors.initials: T
authors.lastname: Uchi
authors.forename: K
authors.initials: K
authors.lastname: Okamoto
authors.forename: M
authors.initials: M
authors.lastname: Kanai
authors.forename: E
authors.initials: E
authors.lastname: Watanabe
authors.forename: K
authors.initials: K
authors.lastname: Mineoka
authors.forename: H
authors.initials: H
authors.lastname: Tomioka
authors.forename: M
authors.initials: M
authors.lastname: Suzuki
mesh_terms: D005260:Female; D006801:Humans; D008185:Lutembacher Syndrome / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D008875:Middle Aged