[Biventricular pacing using two pacemakers and triggered VVT mode in patients with atrial fibrillation and congestive heart failure: a case report].

A 76-year-old female had undergone implantation of a single chamber pacemaker for sick sinus syndrome 20 years previously. She developed chronic atrial fibrillation and required repeated admission due to congestive heart failure. She had significant mitral and tricuspid regurgitation.

[Efficacy of biventricular pacing on myocardial glucose metabolism in a patient with heart failure using 2-deoxy-2[18F]fluoro-d-glucose positron emission tomography: a case report].

A 61-year-old-male with dilated cardiomyopathy and congestive heart failure was treated by implantation of a biventricular pacemaker. Myocardial glucose metabolism was evaluated by positron emission tomography with 2-deoxy-2[18F]fluoro-d-glucose (FDG) during atrial-right ventricular pacing or atrial-biventricular pacing. Percentage uptake of FDG decreased in the lower septal area of the left ventricle during right ventricular pacing, but the decrease was improved during biventricular pacing (74.