Why the study?
What are the risk factors for the development of prosthetic valve endocarditis after initial valve replacement?
Population
2,642 patients undergoing initial valve replacement at the Massachusetts General Hospital from 1975 to 1982
Design
Cohort
Follow-up
mean 39.8 months
Authors
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Valve type may influence PVE timing without affecting 5-year incidence; leaves open whether prosthesis choice should target early versus late risk.
What are the risk factors for the development of prosthetic valve endocarditis after initial valve replacement?
The risk of prosthetic valve endocarditis varies over time depending on valve type, with mechanical valves having higher early risk and porcine valves having higher late risk, though cumulative 5-year risk is similar.
Calderwood et al. (1985) studied this question.
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