Fluconazole Prophylaxis for Penile Prosthesis Infection Prevention

Rationale and Administration Protocol

The Infectious Diseases Society of America recommends that antifungal prophylaxis be used to prevent fungal infections in patients undergoing urologic procedures, such as penile prosthesis insertion, to reduce the risk of prosthetic device infections, which can lead to significant morbidity and potential need for device removal 1, 2

For patients with renal impairment, dose adjustment of fluconazole may be necessary as it is primarily eliminated through the kidneys, according to the Clinical Infectious Diseases guidelines 3

For patients at risk of infection with fluconazole-resistant Candida species, such as C. glabrata or C. krusei, an echinocandin (caspofungin 50-70 mg daily, micafungin 100 mg daily, or anidulafungin 100 mg daily) may be considered, as recommended by the Journal of Microbiology, Immunology and Infection 4, 5

A 7-10 day course of prophylaxis (including pre- and post-procedure days) is typically sufficient for most uncomplicated cases, but longer courses may be considered for patients with additional risk factors for fungal infection, according to the Clinical Infectious Diseases guidelines 1, 3

For patients with prosthetic devices that cannot be removed due to infection, chronic suppression with fluconazole 400 mg (6 mg/kg) daily is recommended if the isolate is susceptible, as recommended by the Clinical Infectious Diseases guidelines 2
In cases of documented infection involving a prosthetic device, device removal is generally recommended along with appropriate antifungal therapy, according to the Clinical Infectious Diseases guidelines 2

The Infectious Diseases Society of America (IDSA) guidelines recommend prophylactic antifungal therapy for patients undergoing urologic procedures, such as penile prosthesis insertion, due to the increased risk of fungal infections, particularly candidiasis 6, 7
Urologic manipulation increases the risk of fungal dissemination, supporting the need for antifungal prophylaxis in patients undergoing penile prosthesis insertion 8

For patients undergoing penile prosthesis insertion, oral fluconazole should be administered at a dose of 400 mg (6 mg/kg) daily for several days before and after the procedure, as recommended by the IDSA guidelines 6, 7, 8
The timing of fluconazole administration should start several days before the procedure and continue for several days after, to effectively prevent fungal infections 6, 9

For patients with contraindications to fluconazole or suspected fluconazole-resistant organisms, Amphotericin B deoxycholate at 0.3-0.6 mg/kg daily can be used for several days before and after the procedure, especially if there is concern for resistant Candida species such as C. glabrata or C. krusei 6, 9, 10

Assess for clinical signs of fungal infection post-procedure, and be vigilant for potential development of resistant Candida species, particularly with prolonged use of fluconazole 6, 11