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Published on: March 14, 2014
Successful treatment of resistant ocular fusariosis with posaconazole (SCH-56592)
Elmer Y Tu1, David L McCartney, Richard F Beatty
1Department of Ophthalmology, University of Illinois at Chicago, Chicago, Illinois, USA. etu@uic.edu
Purpose:
To describe the successful treatment with systemic posaconazole of a series of Fusarium ocular infections refractory to other antifungal agents.
Design:
Retrospective, interventional case series.
Methods:
We identified three patients from three different centers who received diagnoses of Fusarium keratitis and who received systemic posaconazole after their infections failed to respond to maximal tolerated medical and surgical therapy. All patients received multiple systemic, intracameral, and topical antifungal agents, which were ineffective in controlling their infection.
Results:
Two patients were contact lens wearers. Two patients developed endophthalmitis. The infections of all three patients failed to respond to systemic and/or topical voriconazole treatment. One patient could not tolerate systemic voriconazole, and another experienced no marked improvement. The third discontinued treatment for both reasons. All patients were treated with oral posaconazole and experienced rapid reduction of intraocular inflammation and pain, as well as resolution of the infection without additional intervention.
Conclusions:
Deep Fusarium keratitis is difficult to treat and carries a high risk of progression to endophthalmitis. Posaconazole, which exhibits excellent tissue penetration and demonstrates efficacy in the treatment of systemic Fusarium infection, was successful in treating three cases of pan-resistant keratitis and/or endophthalmitis.
Insights
Systemic posaconazole successfully treated three cases of pan-resistant Fusarium keratitis and endophthalmitis that did not respond to other antifungal treatments. This offers a new therapeutic option for severe fungal eye infections.
Area of Science:
- Ophthalmology
- Mycology
- Infectious Diseases
Background:
- Fusarium keratitis is a severe fungal infection of the cornea.
- It is challenging to treat, often progressing to endophthalmitis.
- Standard antifungal therapies frequently fail, necessitating alternative treatments.
Observation:
- Three patients with refractory Fusarium keratitis, including two with endophthalmitis, were identified.
- These patients had failed maximal medical and surgical therapy, including voriconazole.
- Two patients were contact lens wearers.
Findings:
- All three patients received systemic posaconazole.
- Posaconazole treatment led to rapid reduction in ocular inflammation and pain.
- Complete resolution of Fusarium keratitis and/or endophthalmitis was achieved in all patients.
Implications:
- Systemic posaconazole is a viable and effective treatment for pan-resistant Fusarium ocular infections.
- Posaconazole's efficacy suggests its potential for treating deep-seated fungal infections due to its tissue penetration.
- This finding provides a crucial therapeutic alternative for patients with severe, refractory fungal keratitis and endophthalmitis.
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