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Year : 2022  |  Volume : 6  |  Issue : 2  |  Page : 146-150

A Rare Case of Giant Unruptured Sinus of Valsalva Aneurysm

1 Senior Consultant Cardiologist, Max Diagnostic, Cuttack, Odisha, India
2 MBBS (Student), Lady Hardinge Medical College, New Delhi, India

Correspondence Address:
Dr. Biswaranjan Mishra
201, Chandralok Apartment, Professorpada, Cuttack - 753 003, Odisha
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jiae.jiae_56_21

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Sinus of Valsalva aneurysm is a rare congenital disorder that usually presents with rupture of the aneurysm into adjacent cardiac structures. It usually arises from the right sinus of Valsalva which ruptures into the right ventricle or right atrium (RA). Aneurysms may also arise from the noncoronary cusp that rupture into RA. Rarely, an unruptured aneurysm may compress or dissect into the adjacent structures and produce obstruction to either left or right ventricular outflow or produce conduction blocks. It may also intrude upon valves affecting valvular function. Here is a case of an unruptured giant aneurysm arising from the right sinus of Valsalva burrowing into the interventricular septum (IVS) causing conduction defect in the form of left bundle branch block with first degree atrioventricular block. Through IVS, it protruded into the left ventricular (LV) outflow tract (LVOT) giving rise to a cystic appearance causing mild LVOT obstruction and mild-to-moderate aortic regurgitation. The aneurysm also affected mitral valve function causing severe mitral regurgitation (MR) including characteristic diastolic MR due to prolonged PR interval. There was no regional wall motion abnormality indicating the absence of coronary arterial obstruction by the aneurysm. Left atrial and LV dilatation was present along with LV systolic dysfunction. Pulmonary arterial systolic pressure was approximately 48 mmHg as calculated from tricuspid regurgitation (TR) gradient. Like MR, TR also showed diastolic TR.

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