Circumflex artery motion; a new angiographic method for assessment of left ventricular function in patient with normal left ventricular function.

Abstract

The longitudinally and the circumferentially orientated myocardial fibers work together in fascinating manner to give an effective contractions. Many recent studies stressed on the importance of long axis fractional shortening which represents the longitudinal oriented fibers work. Ventriculography is the gold standard for LV function assessment. The aim of the work is to evaluate the usefulness of circumflex artery motion and long axis fractional shortening in assessment of LV function compared to EF obtained by ventriculography. The study was conducted on three hundred patients in national heart institute from July 2011 until July 2013. All patients underwent careful history taking, physical examination, electrocardiogram, coronary and LV angiography. During the coronary and LV angiography CAM amplitude and EDD were obtained and then the FSL were calculated. Statistical analysis revealed that there was a highly significant linear correlation between EF obtained by LV angiography and measurements of CAM at the proximal site, the distal site and the highest correlation was with the mean circumflex artery motion.