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Published on: February 6, 2021
Acute bilateral postoperative endophthalmitis in a HLA-DQ5-positive patient: possible susceptibility to infections
1Department of Ophthalmology, Oftalmos, Instituto Oftalmologico de Alta Complejidad, University of Buenos Aires, Republica Argentina. nicoli@mbox.servicenet.com.ar
Abstract:
An unusual case of bilateral acute endophthalmitis in association with the HLA-DQ5 histocompatibility antigen is reported. A 35-year-old woman with high myopia and cataracts in both eyes underwent phacoemulsification procedures performed in separate sessions using different viscoelastic substances and following the same strict prophylactic measures. After each surgical procedure, she developed S. epidermidis acute endophthalmitis in the right eye and Propionibacterium acnes acute endophthalmitis in the left eye; both were successfully treated with capsular bag irrigation and intracameral vancomycin (1 mg/0.1 mL). She tested positive for the HLA-DQ5 (DQ1), DQ2 antigen. The question is raised as to whether the HLA-DQ5 histocompatibility antigen may be a predisposing factor for both staphylococcal and P. Acnes acute endophthalmitis. A multicenter prospective study is proposed to identify this HLA antigen in all patients scheduled for cataract surgery who have a history of postoperative endophthalmitis in the fellow eye.
Insights
This case report suggests a link between HLA-DQ5 and bilateral acute endophthalmitis after cataract surgery. Further research is needed to confirm if this human leukocyte antigen predisposes patients to infection.
Area of Science:
- Ophthalmology
- Immunogenetics
Background:
- Postoperative endophthalmitis is a serious complication following cataract surgery.
- The role of specific human leukocyte antigen (HLA) types in susceptibility to postoperative infections is not fully understood.
Observation:
- A 35-year-old woman with high myopia developed bilateral acute endophthalmitis after undergoing phacoemulsification in both eyes.
- Infection in the right eye was caused by Staphylococcus epidermidis, and the left eye by Propionibacterium acnes.
- Both infections were successfully treated with intracameral vancomycin.
Findings:
- The patient was found to be positive for the HLA-DQ5 (DQ1) and DQ2 antigens.
- This case raises the possibility that HLA-DQ5 may be a predisposing factor for both Staphylococcus and Propionibacterium acnes endophthalmitis.
Implications:
- A potential association between HLA-DQ5 and increased risk of postoperative endophthalmitis warrants further investigation.
- A multicenter prospective study is proposed to evaluate HLA antigen presence in patients with a history of fellow eye endophthalmitis.
- Identifying predisposing genetic factors could lead to personalized prophylactic strategies for high-risk cataract surgery patients.
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