Candida precipitins as a diagnostic aid in Candida endocarditis

Area of Science:

• Cardiology
• Infectious Diseases
• Medical Microbiology

Background:

• Aortic valve homografts are used in cardiac surgery.
• Endocarditis is a serious infection of heart valves.
• Preoperative contamination can lead to homograft infection.

Observation:

• A patient developed aortic valve homograft endocarditis.
• The infection was linked to contamination of the homograft prior to surgery.
• Standard venous blood cultures for diagnosis were negative.

Findings:

• Candida precipitins, detected via double immunodiffusion, were positive.
• This serological test proved crucial for diagnosing fungal endocarditis.
• The findings underscore the importance of specific diagnostic markers.

Implications:

• Candida precipitins can aid in diagnosing fungal endocarditis, especially with negative blood cultures.
• This highlights the risk of homograft contamination and subsequent infection.
• Early and accurate diagnosis is vital for patient outcomes in prosthetic valve endocarditis.