Sep 1, 1977

Echocardiographic study of malfunction of the Bjork-Shiley prosthetic heart valve in the mitral position

The American Journal of Cardiology
J A Bernal-Ramirez, J H Phillips


This report presents an echocardiographic study of four cases of malfunction of the Bjork-Shiley prosthetic heart valve in the mitral position. The malfunction was proved in all patients by cardiac catheterization, observation at cardiac surgery or findings at postmortem examination. Two distinctive motion patterns of the malfunctioning valves were detected in the echocardiogram. One was a rounded and slowed pattern of opening and closure that correlated with the presence of abnormal clotting on the prosthesis (two patients). The other was an unusual "hump" during the opening phase that correlated with significant perivalve leak (two patients). These patterns along with other observations appears to be valuable in recognizing mitral valve Bjork-Shiley prosthetic malfunction with echocardiography.

Mentioned in this Paper

Mitral Valve
Entire Heart Valve
Discipline of Heart Surgery
Cardiac Catheterization Procedures
Blood Coagulation Disorders
Heart Valves
2D Echocardiography
Entire Mitral Valve

About this Paper

Related Feeds

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.

Cardiovascular Diseases: Risk Factors

Cardiovascular disease is a significant health concern. Risk factors include hypertension, obesity, dyslipidemia and smoking. Women who are postmenopausal are at an increased risk of heart disease. Here is the latest research for risk factors of cardiovascular disease.