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M. Ziskin, D. Thickman, N. Goldenberg, M. Lapayowker, J Becker (1982)
The comet tail artifact.Journal of Ultrasound in Medicine, 1
Messmer Bj, Okies Je, G. Hallman, D. Cooley (1972)
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Ricardo Moreno-Cabral, J. Mcnamara, Richard Mamiya, Scott Brainard, George Chung (1978)
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Thrombosis on Bjork-Shiley aortic valve prosthesis. Clinical, arteriographic, echocardiographic and therapeutic observations in seven cases.The American journal of cardiology, 34 5
Bjork Bjork, Henze Henze (1975)
Management of thromboembolism after aortic valve replacement with the Bjork‐Shiley tilting disc valveScan J Thorac Cardiovasc Surg, 9
Bjork Bjork (1975)
Discussion of paper by Byrd et al: Long term results of “Simple” thrombectomy for thrombosed Bjork‐Shiley aortic valve prosthesesAnn Thorac Surg, 20
J. Douglas, G. And, Williams Doyne (1974)
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Aortic valve replacement with the Björk-Shiley tilting disc valve prosthesisBritish Heart Journal, 33
C. Byrd, W. Yahr, J. Greenberg (1975)
Long-term results of "simple" thrombectomy for thrombosed Björk-Shiley aortic valve prostheses.The Annals of thoracic surgery, 20 3
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Dejan Boskovic, MD,* Leonard W.Pechacek, RDMS, and Zvonimir Krajcer, MD, FACC A number of studies have demonstrated low transvalvular gradients and near laminar flow across the Bjork-Shiley aortic valve prosthesis.',' Despite these favorable hemodynamic characteristics, thromboembolic complications associated with this prosthesis do O C C U ~ . ~ , ~ More than 65 cases of thrombosis of the Bjork-Shiley valve in the aortic position have been reported thus far.5 Because thrombosis of tilting disc valves typically results in acute major prosthesis dysfunction, prompt diagnosis and surgical intervention are necessary.6-8 We present a case in which thrombotic fixation of an aortic Bjork-Shiley prosthesis was identified by wide-angle, two-dimensional echocardiography, leading to emergency surgery and patient survival. CASE REPORT In 1978, a 20-yr-old man underwent aortic valve replacement with a No. 23 Bjork-Shiley prosthesis because of severe aortic stenosis caused by a bicuspid valve. He was placed on anticoagulant therapy but took his medication on an irregular basis. He did well until May, 1981 when he suddenly developed shortness of breath and fatigue. Because of his symptoms and the fact that his prosthetic valve sounds could not be heard, he was referred to our institution for evaluation. On admission,
Journal of Clinical Ultrasound – Wiley
Published: Apr 1, 1983
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