title: The assessment of atrioventricular (AV) delay and quality-of-life in DDD paced patients.
authors.forename: E
authors.initials: E
authors.lastname: Crystal
authors.forename: I E
authors.initials: IE
authors.lastname: Ovsyshcher
mesh_terms: D002302:Cardiac Output; D004452:Echocardiography; D006321:Heart / Q000000981:diagnostic imaging; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects; D011788:Quality of Life; D011877:Radionuclide Imaging; D013318:Stroke Volume