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.

Abstract

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.

Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Microbiome of the Eye01:22

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...
Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
Brain Abscess l: Introduction01:26

Brain Abscess l: Introduction

A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...