Elective prosthetic valve reoperation to relieve unacceptably high gradient

M. Shigenobu, S. Arai, A. Aoki, K. Kurosumi, S. Imai, T. Jinno, K. Takata, Y. Senoo, S. Teramoto

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Pressure gradients of Lillehei-Kaster valve (13 patients), Omniscience valve (26 patients) and Omnicarbon valve (7 patients) in the aortic position were evaluated by Doppler echocardiography. Twenty-three out of 46 patients revealed unacceptably high gradients. Seven prostheses were removed because the valve design that they had high gradients across them. Clinical findings including left ventricular function and symptoms improved after the reoperation. Patients who underwent aortic valve replacement with this series of valve prostheses should be followed up cautiously.

Original languageEnglish
Pages (from-to)448-452
Number of pages5
JournalKyobu geka. The Japanese journal of thoracic surgery
Issue number6
Publication statusPublished - Jun 1990
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)


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