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Development of a Corneal Scrape Visual Standard Operating Procedure

Development of a Corneal Scrape Visual Standard Operating Procedure. Dr James Yeo, GPST1 Dr Tom Lewis, Consultant Microbiologist. Why an S.O.P. Lean Improvement What is the best way to manage a patient with keratitis to minimise harm and optimise treatment. Current State

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Development of a Corneal Scrape Visual Standard Operating Procedure

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  1. Development of a Corneal ScrapeVisual Standard Operating Procedure Dr James Yeo, GPST1 Dr Tom Lewis, Consultant Microbiologist

  2. Why an S.O.P. • Lean Improvement • What is the best way to manage a patient with keratitis to minimise harm and optimise treatment. • Current State • No specific national or local guidelines on HOW to sample or WHAT organisms to sample for.

  3. What we know. • Little or no differentiation in the literature between potential contamination organisms and pathogens. • Little reference to the risks of managing misidentified organisms. • No clear guideline for the practical procedure of performing an effective scrape. • No gold standard.

  4. Collaborative working • Alignment of the needs of the patient with • The requirements of the ophthalmology clinician • Effective processing microbiology samples • Effective reporting of organisms and sensitivities • Reducing waste

  5. SOP Objective • Reproducible method • Easy to Follow, stepwise procedure • Reduce the risk of contamination • Maintaining best practice • Aseptic technique • To isolate an organism that will allow targeted treatment of the patient and preserve their sight

  6. Corneal Scrape, Pathogens and Contamination rates 2008 to 2013

  7. Pathogens vs Contaminants Highly likely Pathogens; Acanthamoeba, Pseudomonusaeruginosa, mycobacteria, fungi Implicated as Pathogens; Staph. aureus, Strep. pneumoniae, Moraxella Probable Contaminants; Mixed culture or isolation of Staph epidermidis

  8. Next steps in development • When to precede to corneal biopsy? • The value of swabs from around the ulcer to identify colonizing flora • How to further maximise yield? • Further requirements from the Ophthalmology team.

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