Optymalna rozbudowa dwujamowego układu stymulującego u pacjentki z utrwalonym migotaniem przedsionków

Abstract

In patients with sick sinus syndrome, and previously implanted dual-chamber pacemaker, the occurrence of atrial fibrillation finally assessed as permanent is most commonly regarded as a natural course of the disease. The inappropriate heart rate control and right ventricular pacing can both negatively influence left ventricle mechanical performance leading to cardiomyopathy and heart failure.It was presented the case of a 72-year-old woman with permanent atrial fibrillation with narrow QRS complex, after dual-chamber pacemaker implantation, admitted to our department with signs and symptoms of acute decompensated congestive heart failure. The modification of pharmacotherapy allowed to compensate heart failure, however with only small influence on structural remodelling and patient's symptoms. The successful upgrade of the pacing system to the direct His-bundle pacing enabled the restoration of proper function of the heart and full symptoms relief. The direct His-bundle pacing is an approach of choice in such a group of patients.