Mitral regurgitation associated with aortitis syndrome.

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Abstract
Three patients with mitral regurgitation (MR) associated with aortitis syndrome are presented. All had multiple lesions of the large sized arteries, calcification of the aorta, mild inflammatory findings, a chronic course, and congestive heart failure. MR was observed by ventriculography in all 3 patients. Case 1 had mitral valve prolapse and secondary systemic hypertension. Case 2 showed mildly thickened mitral valve leaflets and had moderate aortic regurgitation (AR). Case 3 had massive AR. The grade of MR was moderate in Cases 1 and 2, and massive in Case 3. The left ventricle was moderately dilated in Cases 1 and 2 but contracted sufficiently and symmetrically in all 3 patients. Other than the prolapse, no significant mitral valve deformity or left ventricular asynergy was evident by ventriculography. The incidence of MR was 3.1% of 128 patients with aortitis syndrome observed in our clinic. MR may be found in the late stage of aortitis syndrome. It may be caused by a mild valvular lesion related to aortitis syndrome and be exacerbated by increased hemodynamic loads such as those which occur in secondary hypertension and AR.

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