P843 A rare cause of chest pain: paradoxical embolism in Ebstein"s anomaly

Introduction Ebstein’s anomaly is characterized by displacement of the proximal attachments of the tricuspid valve from the atrioventricular ring into the right ventricle. This structural abnormality divides the right ventricle into an ‘atrialized’ portion and a distal ‘ventricularized’ portion. The severity is variable and accounts for the broad clinical spectrum, from severe disease causing fetal or neonatal death to mild disease compatible with natural survival as late as the eighth decade of life. Ebstein’s anomaly is an uncommon defect occurring in less than 1% of patients with congenital heart disease, but it is disproportionately represented in the adult congenital heart disease population because of its favourable natural history Case report A 55 year old man with no previous cardiac history .He presented to our medical facility complaining of acute retrosternal squeezing retrosternal chest pain few hours before admission. On clinical examination, he had a pansystolic murmur over the tricuspid area .ECG showed right bundle branch block. Laboratory results were unremarkable except elevated cardiac enzymes. 2D Transthoracic Echocardiography revealed a small well-functioning right ventricle, 15 mm/m2 apical displacement of the tricuspid septal leaflet with severe tricuspid regurgitation . 2D and 3D transesophageal echocardiography with intravenous agitated saline injection revealed patent foramen ovale with right to left shunt with immediate crossing of bubbles.Coronary angiography revealed normal coronaries. The patient refused intervention and he was maintained on warfarin treatment . Conclusion The clinical presentation of Ebstein’s anomaly is highly variable—depending on anatomic severity, haemodynamics ,and degree of interatrial shunting. The majority of patients have shunting through a secundum ASD or patent-foramen ovale. Paradoxical embolism maybe an indication for PFO/ ASD closure Abstract P843 Figure.