title: Normal mean manifest electrical qRS in dysplastic pulmonary valve associated with hypertrophic non-obstructive left ventricular cardiomyopathy.
abstract: Dysplastic pulmonary valve is usually associated with extreme right axis deviation. A mean manifest electrical QRS axis of + 160 degrees or less was present in 11 of 30 cases of DPV studied by us. In 9 of these cases associated left ventricular hypertrophic non-obstructive cardiomyopathy was found. We suggest that a normal mean manifest electrical QRS axis in the presence of dysplastic stenotic pulmonary valve indicates the presence of associated cardiomyopathy.
mesh_terms: D000293:Adolescent; D000328:Adult; D009202:Cardiomyopathies / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology*; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D011664:Pulmonary Valve / Q000002:abnormalities*; D011666:Pulmonary Valve Stenosis / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology; D011859:Radiography