Evidence map›Paper›PMID 28487512›Full record

ArticleScientific reports2017

Rapid learning curve assessment in an ex vivo training system for microincisional glaucoma surgery.

Yalong Dang, Susannah Waxman, Chao Wang, Hardik A Parikh, Igor I Bussel, Ralitsa T Loewen, Xiaobo Xia, Kira L Lathrop, Richard A Bilonick, Nils A Loewen

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
8.6field-weighted citation impact, top 2% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Tissue-engineered anterior segment eye cultures demonstrate hallmarks of conventional organ culture.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2023
    Article
  4. Exact matching of trabectome-mediated ab interno trabeculectomy to conventional trabeculectomy with mitomycin C followed for 2 years.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
  5. Dose-dependent effects of netarsudil, a Rho-kinase inhibitor, on the distal outflow tract.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2020
    Article
  6. Article
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  8. Outflow facility and extent of angle closure in a porcine model.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019
    Article
  9. Five-year clinical outcomes of combined phacoemulsification and trabectome surgery at a single glaucoma center.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019
    Article
  10. Article
  11. Outflow enhancement by three different ab interno trabeculectomy procedures in a porcine anterior segment model.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2018
    Article
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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

10 authors at 2 institutions in 2 countries.

Yalong DangDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Susannah WaxmanDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Chao WangDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Hardik A ParikhDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.ORCID 0000-0001-7794-8332
Igor I BusselDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Ralitsa T LoewenDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Xiaobo XiaDepartment of Ophthalmology, Xiangya Hospital of Central South University, Changsha, Hunan, China.ORCID 0000-0002-2239-6451
Kira L LathropDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Richard A BilonickDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.
Nils A LoewenDepartment of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States. loewen.nils@gmail.com.ORCID 0000-0001-7167-1213
University of Pittsburgh · USCentral South University · CN

Funding

Virus Production and Manipulation of Protein/Gene Expression ModuleP30EY008098 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Marlene Behrmann · 1989 to 2026
$17.8M
Reverse Engineering of Trabecular MeshworkK08EY022737 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI LOEWEN, NILS A · 2012 to 2016
$993k
NEI NIH HHS K08 EY022737NEI NIH HHS P30 EY008098
6 · The paper itself

Abstract

Increasing prevalence and cost of glaucoma have increased the demand for surgeons well trained in newer, microincisional surgery. These procedures occur in a highly confined space, making them difficult to learn by observation or assistance alone as is currently done. We hypothesized that our ex vivo outflow model is sensitive enough to allow computing individual learning curves to quantify progress and refine techniques. Seven trainees performed nine trabectome-mediated ab interno trabeculectomies in pig eyes (n = 63). An expert surgeon rated the procedure using an Operating Room Score (ORS). The extent of outflow beds accessed was measured with canalograms. Data was fitted using mixed effect models. ORS reached a half-maximum on an asymptote after only 2.5 eyes. Surgical time decreased by 1.4 minutes per eye in a linear fashion. The ablation arc followed an asymptotic function with a half-maximum inflection point after 5.3 eyes. Canalograms revealed that this progress did not correlate well with improvement in outflow, suggesting instead that about 30 eyes are needed for true mastery. This inexpensive pig eye model provides a safe and effective microsurgical training model and allows objective quantification of outcomes for the first time.

Indexed as

Learning CurveAnimalsCorneaFluorescenceGlaucomaOperating RoomsSus scrofaTime FactorsTrabeculectomy

Identifiers

PMID28487512
PMCPMC5431621
OpenAlexW2581842353

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.