Pacing-related acute pulmonary edema and mechanical asynchrony illustrated by three-dimensional echocardiography.
Sick sinus syndrome with symptomatic bradycardia is an indication for a permanent pacemaker. Either a single (AAIR) or dual-chamber (DDDR) pacemaker can be implanted in these patients with normal atrioventricular nodal function. This report presents a 92-year-old male with right ventricular apical pacing related recurrent acute pulmonary edema and mechanical asynchrony demonstrated by three-dimensional echocardiogram. Although three-dimensional echocardiography has been available for many years, it has seldom been applied to evaluate pacing-related intraventricular asynchrony. The systolic asynchrony index for this patient was 6.7% during AAIR pacing mode and 22% during DDDR pacing mode.
Wu
Chia-Tung
CT
Department of Cardiology, Chang Gung Memorial Hospital, 199, Tunhwa N. Road, Taipei, Taiwan, Republic of China.
Wang
Chun-Li
CL
Luqman
Nazar
N
Kuo
Chi-Tai
CT
D000369:Aged, 80 and over; D001283:Atrioventricular Node / Q000502:physiology; D002304:Cardiac Pacing, Artificial / Q000009:adverse effects* / Q000379:methods; D019560:Echocardiography, Three-Dimensional / Q000379:methods*; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008297:Male; D011654:Pulmonary Edema / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D012804:Sick Sinus Syndrome / Q000503:physiopathology / Q000628:therapy; D018754:Ventricular Dysfunction / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology