title: Severe tricuspid valve regurgitation caused by transvenous pacemaker: echocardiographic diagnosis.
mesh_terms: D002304:Cardiac Pacing, Artificial / Q000009:adverse effects*; D004452:Echocardiography; D006801:Humans; D007223:Infant; D014262:Tricuspid Valve Insufficiency / Q000175:diagnosis / Q000209:etiology*