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Pasteurella multocida endophthalmitis after a cat bite
Abstract:
We treated a patient with Pasteurella multocida endophthalmitis associated with a retinal detachment resulting from a cat bite. To our knowledge, endophthalmitis from an animal bite has not been described previously. Organisms were directly inoculated from a perforated wound through the globe. The patient was vigorously treated with intensive systemic antimicrobial chemotherapy and pars plana vitrectomy. The inflammation subsided after repeated vitrectomies. A subsequent retinal detachment was treated with fluid-gas exchange and 360 scleral buckling with a silicone implant. Eight months after surgery the visual acuity was 40/200.
Insights
This study reports a rare case of Pasteurella multocida endophthalmitis following a cat bite, leading to retinal detachment. Prompt treatment involving antimicrobial chemotherapy and vitrectomy successfully managed the infection and vision was partially restored.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Veterinary Medicine
Background:
- Endophthalmitis is a severe intraocular inflammation, often caused by bacterial or fungal infections.
- Ocular trauma, particularly penetrating injuries, increases the risk of endophthalmitis.
- Animal bites are a potential, though rarely reported, source of ocular infections.
Observation:
- A patient presented with endophthalmitis and retinal detachment attributed to a cat bite.
- The causative organism identified was Pasteurella multocida, directly inoculated from a globe-perforating wound.
- The clinical presentation highlights a novel association between animal bites and endophthalmitis.
Findings:
- Intensive systemic antimicrobial chemotherapy and pars plana vitrectomy were employed for treatment.
- Repeated vitrectomies were necessary to resolve the intraocular inflammation.
- The subsequent retinal detachment was surgically repaired using fluid-gas exchange and scleral buckling.
Implications:
- This case expands the known spectrum of ocular infections secondary to animal bites.
- Highlights the importance of considering zoonotic infections in cases of severe ocular trauma.
- Emphasizes the critical role of prompt and aggressive management in preserving vision in complex endophthalmitis cases.