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J Thorac Cardiovasc Surg 2001;122:583-586
© 2001 The American Association for Thoracic Surgery

Surgery for Acquired Cardiovascular Disease (ACD)

Fate of mild aortic valve disease after mitral valve intervention

From Cardiothoracic Centre, All India Institute of Medical Sciences, New Delhi, India.

Received for publication Dec 1, 2000. Revisions requested Jan 16, 2000; revisions received March 21, 2001. Accepted for publication March 23, 2001. Address for reprints: Arkalgud Sampath Kumar, Professor, Department of Cardiothoracic & Vascular Surgery, Cardiothoracic Centre, AIIMS, Ansari Nagar, New Delhi—110 029, India (E-mail: askumar{at}medinst.ernet.in).

Abstract

Objective: This study was performed to assess the long-term outcome of untreated mild aortic valve disease present at the time of initial mitral valve intervention.
Methods: A total of 284 patients with rheumatic heart disease aged 7 to 62 years (mean, 23.5 ± 12.2 years) who underwent mitral valve intervention and had mild aortic valve disease initially were followed up for 2 to 18 years (mean, 10.8 ± 3.7 years). At initial intervention, 232 patients had pure mild aortic regurgitation, and 52 patients had mild aortic stenosis with or without aortic regurgitation.
Results: Among patients with mild aortic regurgitation initially, 11 (5%) patients progressed to moderate (n = 6) or severe (n = 5) regurgitation over an interval of 9 to 17 years (mean, 12.1 ± 2.8 years), and 1 patient had moderate aortic stenosis and severe aortic regurgitation after 10 years. Freedom from development of moderate-severe aortic valve disease in patients who initially had mild aortic regurgitation was 100%, 97.0% ± 1.7%, and 87.4% ± 4.6% at 5, 10, and 15 years, respectively. Seventeen (35%) patients with initial mild aortic stenosis (with or without regurgitation) had moderate or severe stenosis (with or without moderate-severe regurgitation) after an interval of 4.9 ± 3.8 years. Freedom from development of moderate-severe aortic valve disease in patients who initially had mild aortic stenosis was 75.6% ± 6.2%, 61.5% ± 8.5%, and 46.1% ± 11.2% at 5, 10, and 15 years, respectively. Ten patients required aortic valve replacement for aortic valve dysfunction.
Conclusions: Mild aortic regurgitation present at the time of mitral valve intervention progresses very slowly and less frequently requires reintervention. However, mild aortic stenosis diagnosed initially progresses more often and more rapidly and thus needs closer follow-up.

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