A rare cause of aortic regurgitation and complete atrioventricular block

A 47-year-old Caucasian male presented with exertional dyspnoea and thoracic pain within the last month. At physical examination, he had bradycardia (heart rate of 45 beats per minute), fever, and a diastolic murmur. Electrocardiogram demonstrated complete atrioventricular block ( A ). Transthoracic and transoesophageal echocardiogram revealed severe aortic regurgitation due to dilatation and thickening of the...