Uchida K, Tobe M, Ozaki T, Hamada T, Kubo N, Satou S
Department of Cardiovascular Surgery, Kanagawa Prefectural Cardiovascular and Respiratory Center, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1992 Nov;40(11):2087-90.
A 46-year-old man was referred to our hospital because of prosthetic valve regurgitation. Eight years previously he had undergone aortic valve replacement because of aortic regurgitation due to infective endocarditis. At reoperation, we found prosthetic valve endocarditis and discrete subaortic stenosis. The obstructing fibrous tissue was resected and the aortic valve was replaced. Because discrete subaortic stenosis is usually located just below the aortic valve, the aortic valve cusps are liable to become thickened by the jet through the discrete stenosis and thus are vulnerable to infective endocarditis. It is pointed out that care must be taken not to overlook discrete subaortic stenosis in the presence of other associated cardiac disorders.
