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Antibiotic Prophylaxis of Infective Endocarditis
Martin H Thornhill1,2, Mark Dayer3, Peter B Lockhart4
1Department of Oral & Maxillofacial Medicine and Surgery, University of Sheffield School of Clinical Dentistry, Claremont Crescent, Sheffield, S10 2TA, UK. m.thornhill@sheffield.ac.uk.
Antibiotic prophylaxis (AP) to prevent infective endocarditis (IE) is safe and likely cost-effective. Recent guideline changes, particularly in the UK, may have led to increased IE cases, suggesting continued adherence to current US and European guidelines is prudent.
Area of Science:
- Cardiology
- Infectious Diseases
- Public Health
Background:
- The link between invasive procedures and infective endocarditis (IE) has been recognized since the 1920s.
- Antibiotic prophylaxis (AP) was recommended for IE prevention but guidelines have been restricted due to weak evidence and risks like antibiotic resistance.
- UK guidelines controversially ceased AP for all procedures in 2008, with subsequent studies indicating a rise in IE cases.
Purpose of the Study:
- To evaluate the safety and cost-effectiveness of antibiotic prophylaxis (AP) for infective endocarditis (IE) prevention.
- To assess the impact of guideline changes on IE incidence.
- To provide recommendations on AP use for IE prevention.
Main Methods:
- Review of historical recommendations and guideline changes in the USA, Europe, and the UK.
- Analysis of epidemiological studies investigating IE trends following guideline alterations.
- Assessment of the safety and cost-effectiveness of AP.
Main Results:
- Antibiotic prophylaxis (AP) for IE prevention is considered safe.
- AP is likely to be cost-effective.
- Epidemiological data suggests a potential increase in IE cases following the cessation of AP in the UK.
Conclusions:
- Continued adherence to current US and European guidelines for AP in IE prevention is recommended.
- Further data is needed to definitively assess the long-term impact of guideline changes.
- The safety and cost-effectiveness of AP support its judicious use in high-risk patients.
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