Pediatrics General 40269c7a Intracavitary electrocardiography is a diagnostic aid in – A Tricuspid regurgitation B Endocardial fibroelastosis C Endomyocardial fibrosis D Ebstein's anomaly of the tricuspid valve High-Yield Explanation Four chambered view in two dimension echocardiogram is diagnostic as it outlines the displaced tricuspid valve.