Evaluation of Next-Generation Sequencing-based Metabarcoding Versus Culturing in Infectious Keratitis
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Keratitis
- Sponsor
- Aarhus University Hospital
- Enrollment
- 100
- Locations
- 1
- Primary Endpoint
- Comparison of clinically relevant identified microorganisms on a genus level
- Status
- Recruiting
- Last Updated
- 2 years ago
Overview
Brief Summary
Infectious keratitis is a potential sight threatening condition. In conventional clinical practice culturing is performed in order to identify the causative microbial organism; however in recent years Next Generation Sequencing for the presence of ribosomal DNA from bacteria, fungi, or amoeba has become available. The present study aims to compare conventional culturing with Next Generation Sequencing for identifying microorganism causing keratitis.
Detailed Description
Patients admitted with microbial keratitis to the department of ophthalmology at Aarhus University Hospital is evaluated with both conventional culturing at agar plates, broth culture, and Next Generation Sequencing for ribosomal DNA. Only patients with a corneal infiltrate of a minimum of 2 mm or of 1 mm within the central 6 mm of the cornea will be included in the study. Sampling includes two samples from the contralateral healthy eye to control for the patient's normal microbiome, evaluated with culturing in broth and with NGS. From the infiltrate, samples include culturing on Sabouraud agar, chocolate agar, and blood agar, culturing in broth medium, and samples for NGS. A total of 100 patients will be included.
Investigators
Anders Ivarsen
Consultant, Associate Professor
Aarhus University Hospital
Eligibility Criteria
Inclusion Criteria
- •Patients with a corneal infiltrate of minimum 2 mm in diameter or of 1 mm diameter within the central 6 mm of the cornea
Exclusion Criteria
- •Patients below 18 years of age
Outcomes
Primary Outcomes
Comparison of clinically relevant identified microorganisms on a genus level
Time Frame: 1 year
Number of clinically relevant microorganisms identified using culture or next generation sequencing
Time Frame: 1 year