Evidence map›Paper›PMID 31214859›Full record

ArticleInternational ophthalmology2019

Therapeutic penetrating keratoplasty for acanthamoeba keratitis: a review of cases, complications and predictive factors.

Mehdi Roozbahani, Kristin M Hammersmith, Christopher J Rapuano, Parveen K Nagra, Qiang Zhang

Abstract read
PubMed Publisher
In one paragraph

Article in International ophthalmology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Prognostic factors for therapeutic keratoplasty in Acanthamoeba keratitis: a retrospective study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Complicated Diagnosis and Treatment of Rare PainlessJournal of clinical medicine · 2025
    Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. New Frontiers inBiology · 2023
    Review
  12. Article
  13. Challenges in Acanthamoeba Keratitis: A Review.Journal of clinical medicine · 2021
    Review
  14. Article
  15. 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

5 authors at 2 institutions in 1 country.

Mehdi RoozbahaniCornea Service, Wills Eye Hospital, Sidney Kimmel Medical College, Thomas Jefferson University, 840 Walnut Street, Suite 920, Philadelphia, PA, 19107, USA. meroozbeh@yahoo.com.
Kristin M HammersmithCornea Service, Wills Eye Hospital, Sidney Kimmel Medical College, Thomas Jefferson University, 840 Walnut Street, Suite 920, Philadelphia, PA, 19107, USA.
Christopher J RapuanoCornea Service, Wills Eye Hospital, Sidney Kimmel Medical College, Thomas Jefferson University, 840 Walnut Street, Suite 920, Philadelphia, PA, 19107, USA.
Parveen K NagraCornea Service, Wills Eye Hospital, Sidney Kimmel Medical College, Thomas Jefferson University, 840 Walnut Street, Suite 920, Philadelphia, PA, 19107, USA.
Qiang ZhangVision Research Center, Wills Eye Hospital, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
Wills Eye Hospital · USThomas Jefferson University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo review 12 acanthamoeba keratitis (AK) patients who required a therapeutic penetrating keratoplasty (TPK) and determine whether there are factors at the presenting visit that can predict the need for TPK. MATERIALS AND

methodsThis was a retrospective case series. All diagnosed AK patients between January, 2009 and February, 2016 at Wills Eye Hospital, Philadelphia, PA, USA, were enrolled. Information regarding demographics, disease manifestation, management and complications was collected. Potential predictors for TPK were obtained by comparing TPK cases with those who were treated medically.

resultsSixty-three eyes from 63 patients were diagnosed with AK. Twelve eyes (19%) required TPK during the course of treatment, and 51 eyes (81%) were treated medically. Reasons for performing TPK included medically non-responsive ulcer in seven eyes (58%), perforated ulcer in three eyes (25%) and significant corneal thinning in two eyes (17%). The most common post-TPK complications included graft failure (75%), cataract (50%) and uncontrolled glaucoma required glaucoma surgery (17%). Reactivation of AK was seen in one (8%) patient. Anti-amoebic treatment beginning after 25 days from the start of AK symptoms [odds ratio (OR) = 7.63; confidence interval (CI) = 1.01-55.33; p = 0.041] and poorer presenting vision (OR = 5.42; CI = 1.91-15.36; p = 0.002) were independent predictors of the need for TPK in multivariate analysis.

conclusionTPK is a procedure with significant postoperative complications but is required by some patients with AK. Eyes with higher risk for needing TPK can be identified earlier and thus provided more intensive treatment and closer follow-up care.

Indexed as

Acanthamoeba KeratitisAdolescentAdultAgedAged, 80 and overFemaleHumansKeratoplasty, PenetratingMaleMiddle AgedPostoperative ComplicationsRecurrenceRetrospective StudiesRisk FactorsVisual AcuityYoung AdultAcanthamoeba keratitisCorneal ulcerPredictive factorsTherapeutic penetrating keratoplasty

Identifiers

PMID31214859
OpenAlexW2949227871

What OpenQuestion holds

Textmetadata
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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.