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Summary
A 3-month-old infant developed severe orbital cellulitis caused by Pseudomonas aeruginosa, leading to corneal perforation and endophthalmitis. This case highlights the aggressive nature of gram-negative infections in infants and the importance of prompt diagnosis and treatment.
Area of Science:
- Ophthalmology
- Pediatric Infectious Diseases
- Microbiology
Background:
- Orbital cellulitis can rapidly progress to severe ocular complications.
- Gram-negative bacterial infections, particularly Pseudomonas aeruginosa, pose a significant risk in neonates and young infants.
- Early recognition and appropriate antimicrobial therapy are crucial for managing serious infections in this age group.
Observation:
- A 3-month-old infant with bronchitis presented with symptoms of orbital cellulitis.
- The infant was treated with systemic gentamicin and ampicillin.
- Despite treatment, a large corneal ulcer with globe perforation and endophthalmitis developed.
Findings:
- Pseudomonas aeruginosa was identified as the causative agent, cultured from blood, conjunctiva, and throat.
- The final diagnosis was Pseudomonas orbital cellulitis with secondary corneal perforation and endophthalmitis.
- The respiratory tract was suspected as the primary source of infection.
Implications:
- This case underscores the potential for aggressive Pseudomonas aeruginosa infections to cause devastating ocular outcomes in infants.
- It emphasizes the need for vigilant monitoring and potentially broader-spectrum antibiotics in cases of suspected gram-negative sepsis with orbital involvement.
- Prompt ophthalmologic consultation and intervention are critical for preserving vision in such severe cases.