What question did this study set out to answer?

To examine the relationship between lack of anticoagulation therapy and the development of massive thrombosis or encapsulation in Björk-Shiley aortic valve prostheses.

January 1, 1973Scandinavian Journal of Thoracic and Cardiovascular Surgery

Encapsulation of the Björk-Shiley Aortic Disc Valve Prosthesis Caused by the Lack of Anticoagulation Treatment

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Why the study?

Does adequate anticoagulation treatment prevent encapsulation or massive thrombosis in patients with Björk-Shiley aortic disc valve prostheses?

Population

Patients with Björk-Shiley tilting disc valve prostheses in the aortic position

Comparison

Adequate anticoagulation treatment vs Lack of anticoagulation treatment

Design

Case_series

Authors

VBViking Olov BjörkUniversity of Vermont AHAxel HenzeUppsala University

Discussion

Member takes

Implication

Thrombosis limited to non-anticoagulated cases; leaves open whether anticoagulation prevents complications in Björk-Shiley aortic valves.

Key Points

To examine the relationship between lack of anticoagulation therapy and the development of massive thrombosis or encapsulation in Björk-Shiley aortic valve prostheses.
Retrospective clinical review of 300 patients who underwent aortic valve replacement with Björk-Shiley tilting disc prostheses.
Analysis of surgical management techniques and clinical outcomes in patients presenting with valve encapsulation and acute thrombosis.
Massive thrombosis was observed in 2 of 300 implants (0.67%), with both events occurring solely in patients receiving no anticoagulant treatment.
Outcomes included one fatal case before diagnosis and one survival following emergency disc removal and debridement, though full prosthesis replacement is recommended to prevent strut deformation.

Structured PICO

Does adequate anticoagulation treatment prevent encapsulation or massive thrombosis in patients with Björk-Shiley aortic disc valve prostheses?

Population

Patients with Björk-Shiley tilting disc valve prostheses in the aortic position (n=300 implants, including 2 cases of massive thrombosis)

Intervention

Adequate anticoagulation treatment

Comparator

Lack of anticoagulation treatment

Outcome

Encapsulation or massive thrombosis of the valve prosthesishard clinical

Adequate anticoagulation is strongly recommended for patients with Björk-Shiley aortic valve prostheses to prevent massive thrombosis and encapsulation.

Cite This Study

Björk et al. (1973) studied this question.

synapsesocial.com/papers/6a7da40ececc27a187a143cc https://doi.org/10.3109/14017437309139160

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Implication

Thrombosis limited to non-anticoagulated cases; leaves open whether anticoagulation prevents complications in Björk-Shiley aortic valves.

Encapsulation of the Björk-Shiley Aortic Disc Valve Prosthesis Caused by the Lack of Anticoagulation Treatment

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Encapsulation of the Björk-Shiley Aortic Disc Valve Prosthesis Caused by the Lack of Anticoagulation Treatment

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider