title: Usefulness of echocardiography in cardiac pacing.
mesh_terms: D002304:Cardiac Pacing, Artificial / Q000009:adverse effects*; D003330:Coronary Vessel Anomalies / Q000175:diagnosis; D004452:Echocardiography; D004868:Equipment Failure; D006335:Heart Injuries / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D013927:Thrombosis / Q000175:diagnosis / Q000209:etiology