Evidence map›Paper›PMID 31073162›Full record

ArticleEye (London, England)2019

An 11-year analysis of microbial keratitis in the South West of England using brain-heart infusion broth.

Shokufeh Tavassoli, Gayathri Nayar, Kieren Darcy, Mariusz Grzeda, Jon Luck, O Martin Williams, Derek Tole

Open access · bronzeAbstract read
In one paragraph

Article in Eye (London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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  5. Article
  6. Article
  7. Article
  8. Microbial keratitis in north-western Spain: a review of risk factors, microbiological profile and resistance patterns.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  9. Article
  10. Article
  11. Bacterial contamination in contact lens training area in private optical clinics.Journal of ophthalmic inflammation and infection · 2024
    Article
  12. A comparison of antimicrobial regimen outcomes and antibiogram development in microbial keratitis: a prospective cohort study in Alexandria, Egypt.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Citrobacter keratitis: predisposing factors and clinical characteristics.Journal of ophthalmic inflammation and infection · 2023
    Article
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Shokufeh TavassoliBristol Eye Hospital, Cornea and Refractive Surgery, Bristol, United Kingdom. shokufeh_tavassoli@hotmail.com.
Gayathri NayarUniversity Hospitals Bristol and Public Health England Microbiology Laboratory Services Bristol, Bristol, United Kingdom.
Kieren DarcyBristol Eye Hospital, Cornea and Refractive Surgery, Bristol, United Kingdom.
Mariusz GrzedaBristol Eye Hospital, Cornea and Refractive Surgery, Bristol, United Kingdom.
Jon LuckRoyal United Hospital Bath, Bristol, United Kingdom.
O Martin WilliamsUniversity Hospitals Bristol and Public Health England Microbiology Laboratory Services Bristol, Bristol, United Kingdom.
Derek ToleBristol Eye Hospital, Cornea and Refractive Surgery, Bristol, United Kingdom.
Bristol Eye Hospital · GBPublic Health England · GBRoyal United Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aims of this study were to identify the organisms responsible for microbial keratitis, as identified by corneal scrape using brain-heart infusion broth, trends over time and antimicrobial sensitivities, over an 11-year period at two eye units in the South West of England; Bristol Eye Hospital and Royal United Hospital, Bath.

methodsAll corneal scrapes performed and sent for microbiological analysis between 4th April 2006 and 31st October 2017 at the two eye units were retrospectively reviewed. First-line treatment was monotherapy with levofloxacin 0.5% and second-line treatment was a combination of cefuroxime 5% and gentamicin 1.5%. Both direct and enrichment cultures were used.

resultsIn total, 2614 corneal scrapes from 2116 patients (1082 female, mean age 47.7 ± 21.2 years) were identified. 38.1% (n = 996) were culture positive and 1195 organisms were cultured. In all, 91.6% were bacteria (69.4% were gram-positive, 30.6% gram-negative). Coagulase-negative Staphylococci (CoNS) were the most commonly cultured organism (n = 430). Pseudomonas aeruginosa was the most commonly identified gram-negative organism (n = 189). In total, 6.9% (n = 83) of organisms cultured were fungi. In all, 1.4% (n = 17) were acanthamoeba. There was no statistically significant trend in the organisms observed over the study period. Sensitivity testing confirmed reasonable sensitivity to the empiric antibiotics used in clinical practice.

conclusionsThis is the first report on microbial keratitis trends in the South West of England. Virulent organisms were likely to be detected on direct culture, whereas low virulent organisms such as CoNS were more likely to be detected on enrichment alone. Antibiotic sensitivity testing confirmed fluoroquinolone monotherapy as appropriate first-line treatment.

Indexed as

AdultAgedAnti-Bacterial AgentsBacteriaBrainCefuroximeCorneal UlcerCulture MediaEnglandEye Infections, BacterialFemaleGentamicinsHeartHumansLevofloxacinMaleAnti-Bacterial AgentsCefuroximeCulture MediaGentamicinsLevofloxacin

Identifiers

PMID31073162
PMCPMC7002735
OpenAlexW2943854141

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.