Aneurysm of the right sinus of Valsalva and the membranous septum: Haemodynamic and clinical characterization

INTRODUCTION Sinus of Valsalva aneurysms (SVAs) constitute about 1% of congenital cardiac anomalies and occur most commonly in patients of Asian origin. It is most commonly described in the right sinus (70%), to a lesser degree in the non-coronary, and least common in the left sinus. These aneurysms can cause aortic regurgitation, cardiac ischemia and arrhythmias. They can rupture into the right cardiac chambers or the interventricular septum. We here describe an aneurysm of the right coronary sinus with unique clinical and haemodynamic features.