Cardiac resynchronization therapy in acute pulmonary edema: A case report

Figure 1 Electrocardiogram and echocardiographic examination. A: Twelve lead electrocardiogram after atrioventricular nodal ablation showing pacing rhythm by dual-chamber pacing pacemaker; B: Echocardiography showed moderate to severe mitral regurgitation before cardiac resynchronization therapy pacemaker (CRT-P); C: Twelve lead electrocardiogram after cardiac resynchronization therapy pacemaker; D: Echocardiography showed mild mitral regurgitation after CRT-P.