Evidence map›Paper›PMID 38930596›Full record

ArticleMicroorganisms2024

Assessing PCR-Positive Acanthamoeba Keratitis-A Retrospective Chart Review.

Frank Blaser, Anahita Bajka, Felix Grimm, Simone Metzler, Didier Herrmann, Daniel Barthelmes, Sandrine Anne Zweifel, Sadiq Said

Abstract read
In one paragraph

Article in Microorganisms, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
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

8 authors.

Frank BlaserDepartment of Ophthalmology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
Anahita BajkaDepartment of Ophthalmology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
Felix GrimmInstitute of Parasitology, University of Zurich, 8057 Zurich, Switzerland.ORCID 0000-0002-2685-1167
Simone MetzlerDepartment of Ophthalmology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
Didier HerrmannInstitute of Optometry, University of Applied Science, 4600 Olten, Switzerland.
Daniel BarthelmesDepartment of Ophthalmology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.
Sandrine Anne ZweifelDepartment of Ophthalmology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.ORCID 0000-0001-7431-1774
Sadiq SaidDepartment of Ophthalmology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.ORCID 0000-0003-2037-4766

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ophthalmologists' diagnostic and treatment competence in Acanthamoeba keratitis varies widely. This investigator-initiated, retrospective, single-center chart review examined the electronic patient files regarding PCR-positive Acanthamoeba keratitis. We included corneal and contact lens assessments. We further reviewed the patient's medical history, corneal scraping results regarding viral or fungal co-infections, and the duration from symptom onset to final diagnosis. We identified 59 eyes of 52 patients from February 2010 to February 2023, with 31 of 52 (59.6%) being female patients. The median (IQR, range) patient age was 33 (25.3 to 45.5 [13 to 90]) years, and the mean (SD, range) time to diagnosis after symptom onset was 18 (10.5 to 35 [3 to 70]) days. Overall, 7 of 52 (7.7%) patients displayed a bilateral Acanthamoeba infection, and 48 (92.3%) used contact lenses at symptom onset. Regarding other microbiological co-infections, we found virologic PCR testing in 45 of 52 (86.5%) patients, with 3 (6.7%) positive corneal scrapings. Fungal cultures were performed in 49 of 52 (94.2%) patients, with 5 (10.2%) positive corneal scrapings. The medical treatment success rate was 45/46 (97.8%). This study raises awareness of patient education in contact lens handling and screens for further microbial co-infections in suspected Acanthamoeba cases.

Indexed as

Acanthamoeba keratitisco-infectionscontact lens weardiagnostic challengeinfectious keratitispolymerase chain reaction

Identifiers

PMID38930596
PMCPMC11205950

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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.