13th International Congress
THE "NEW FRONTIERS"
OF ARRHYTHMIAS 1998

January 24-31, 1998
Marilleva, Trento, Italy

RT-39

Fourier analysis for hemodynamic study in new indications of pacemakers

Maurizio Santomauro, Sandro Betocchi, Michele Damiano*, Fernando Coltorti, Francesco Solimene, Natale Marrazzo, Massimo Chiariello.
Department of Cardiology and Cardiac Surgery, *Department of Nuclear Medicine, Medical School, Federico II University of Naples, Italy

Introduction

The study of sequential pattern of ventricular activation and contraction can be performed by a noninvasive method of the phase image analysis derived from equilibrium blood pool scintigram. Phase analysis is useful to discriminate and characterize various abnormalities of interventricular and intraventricular contraction and conduction. Particularly, pacemakers' dependent patients show abnormal ventricular activation and contraction sequence well identified during blood pool scintigraphy^1-6. The aim of this study was to revise our data concerning the mechanism of the ventricular and interventricular synchronism in the preservation of cardiac function during different pacing modes at rest.