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Published on: February 6, 2021
Post-traumatic endophthalmitis involving Clostridium tetani and Bacillus spp
M N Iyer1, G Kranias, M E Daun
1Department of Internal Medicine, The Christ Hospital, Cincinnati, Ohio 45219, USA.
Purpose:
To report a case of post-traumatic infectious endophthalmitis caused by Clostridium tetani and Bacillus spp.
Methods:
Case report.
Results:
A 25-year-old man developed endophthalmitis after a traumatic corneoscleral laceration of his right eye by a concrete reinforcement bar. He underwent pars plana lensectomy and vitrectomy with aspiration of vitreous fluid and a conjunctival swab for cultures. Cultures from the conjunctival swab were negative for organisms. Cultures of the vitreous aspirate were positive for Bacillus species and C. tetani. He had received a tetanus toxoid booster at the emergency department. By the time the culture results became available, he had developed severe eye pain associated with marked orbital congestion, increased swelling and erythema of the lids, marked injection and chemosis of the conjunctiva, and subsequently underwent evisceration. The inflammation resolved after evisceration of the right eye, and he was discharged to home on doxycycline 100 mg orally two times daily for 10 days.
Conclusion:
We are unaware of previous reports of endophthalmitis involving C tetani and could find none in a computerized MEDLINE search. Patients with penetrating eye injury should be assessed for tetanus immunization status, and early intervention with tetanus toxoid booster and/or tetanus immune globulin should be considered if cultures are positive.
Insights
This case report details a rare instance of post-traumatic endophthalmitis caused by Clostridium tetani and Bacillus species following a penetrating eye injury. Early assessment of tetanus immunization status is crucial for patients with eye trauma.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Microbiology
Background:
- Post-traumatic endophthalmitis is a severe ocular infection that can lead to vision loss.
- Penetrating eye injuries pose a significant risk for developing endophthalmitis.
Observation:
- A 25-year-old male presented with endophthalmitis after a corneoscleral laceration from a concrete reinforcement bar.
- Vitreous cultures were positive for Bacillus species and Clostridium tetani.
- Despite receiving a tetanus toxoid booster, the patient developed severe orbital inflammation and underwent evisceration.
Findings:
- This is the first reported case of endophthalmitis caused by Clostridium tetani.
- The presence of Bacillus species alongside C. tetani in the vitreous highlights polymicrobial infection risks.
Implications:
- Patients with penetrating eye injuries require prompt assessment of tetanus immunization status.
- Consider early intervention with tetanus toxoid booster and/or tetanus immune globulin for positive cultures.
- This case underscores the importance of considering unusual pathogens in post-traumatic endophthalmitis.
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