Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
Partial Type of Common Atrioventricular Canal Defect Associated with Mitral Stenosis
Masao MOROIHidefumi OHSAWAHirofumi NOIKETakashi UCHIKiyoshi OKAMOTOMasahito KANAIEri WATANABEKazuhito MINEOKAHisao TOMIOKAMakoto SUZUKITetsu YAMAGUCHI
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1995 Volume 34 Issue 5 Pages 441-445

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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.
(Internal Medicine 34: 441-145, 1995)

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© The Japanese Society of Internal Medicine
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