Magnetic resonance imaging-based biventricular pacemaker upgrade.
This report describes a patient with drug refractory severe chronic ischemic heart failure, atrial fibrillation with bradycardia, and left bundle branch block who had a failed implantation of a biventricular pacemaker because of a high left ventricular pacing threshold. VVI pacemaker implantation had not improved the patient's condition. MRI-guided biventricular pacemaker upgrade had been performed with a left ventricular epicardial lead at the lateral region where a 4-mm thickening during systole had been proven. After 6 months of effective resynchronization, the patient's functional class improved to NYHA II without further need of hospitalization.
Department of Cardiovascular Surgery, Semmelweis University, Budapest, Hungary.
Attila
A
Róka
Tamás
T
Simor
Hajnalka
H
Vágó
Csaba
C
Minorics
György
G
Acsády
Béla
B
Merkely
D001281:Atrial Fibrillation / Q000150:complications / Q000628:therapy; D002304:Cardiac Pacing, Artificial; D004567:Electrodes, Implanted; D006327:Heart Block / Q000150:complications / Q000628:therapy; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D016277:Ventricular Function, Left