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A ten year follow-up of surgically treated discrete subvalvular aortic stenosis Yasufumi Asai 1 , Akihiko Tanaka 1 , Makoto Yamagishi 1 , Kenji Sugiki 1 , Tomio Abe 1 , Sakuzo Komatsu 1 , Tugumasa Fujiwara 2 , Katsumi Ohori 2 1Department of Thoracic and Cardiovascular Surgery, Sapporo Medical College and Hospital 2Hokkaido Circulation Hospital pp.215-219
Published Date 1986/2/15
DOI https://doi.org/10.11477/mf.1404204828
  • Abstract
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A 21 years old man was admitted to our clinic for evaluation of cardiac murmur and vertigo. Pa-tient was first pointed out cardiac murmur at the age of six and became to complain exertional ver-tigo at the age of eleven. A left ventricular to aor-tic peak systolic gradient was 112mmHg. Left ven-triculography revealed a thin nonopacified line be-low the aortic valve. So the diagnosis of discrete subvalvular aortic stenosis was confirmed. Subaor-tic thick membrane was resected through transaor-tic approach. Pathological finding of resected mem-brane was dense fibrosis. Catheterization after one month operation revealed that pressure gradient was decreased to 32mmHg.

Ten years postoperatively patient was readmitted for evaluation of convulsion at night. The pressure gradient was 40mmHg and left ventricular contrac-tion was also good (Ejection fraction: 63%, Car-diac index: 3.43l/min/m2). Epilepsy was diagnos-ed by electroencephalogram. Patient is doing well under the medication for epilepsy.


Copyright © 1986, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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