Key result
Cineradiography enables rapid diagnosis of massive Björk-Shiley thrombosis, though survival remains low at ~33%.
Why the study?
Although thromboembolic complications are reportedly minimal in patients with Björk-Shiley aortic valve prostheses, massive thrombosis remains a major and often fatal problem.
Case Report (n=3)
Answers are grounded in this paper and cite their sources.
Thrombosis risk in Björk-Shiley aortic valves warrants clinical vigilance; challenges minimal-complication reports but leaves open cineradiography validation.
Though thromboembolic complications are reportedly minimal in patients with Björk-Shiley aortic valve prostheses, massive thrombosis remains a major and often fatal problem. The authors observed massive thrombosis in 3 patients, only one of whom survived. In all three instances, the disk of the prosthesis was relatively radiolucent. With valves manufactured after late 1975, which contain a tantalum foil hoop, cineradiography is the most rapid and accurate method of showing the disk. A simple method of calculating the valve opening angle from the cineradiograph is described. It is suggested that serial cineradiographs might be useful in detecting lesser degrees of thrombosis and partial immobilization of the disk.
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Venkataraman et al. (1980) conducted a case report in Massive thrombosis of Björk-Shiley aortic valve prostheses (n=3). Cineradiography of Björk-Shiley aortic valve prostheses was evaluated on Survival following massive valve thrombosis. Massive thrombosis of Björk-Shiley aortic valve prostheses occurred in 3 patients, with only 1 surviving, and cineradiography was identified as the most rapid and accurate diagnostic method.
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