Evidence map›Paper›PMID 34012883›Full record

ArticleInternational journal of ophthalmology2021

Addressing the MSICS learning curve: identification of instrument-holding techniques used by experienced surgeons.

Alexandra J Berges, Zervin R Baam, Angela Zhu, Shameema Sikder, Samuel Yiu, Ravilla D Ravindran, Kunal S Parikh

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in International journal of ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
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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

7 authors at 3 institutions in 2 countries.

Alexandra J BergesJohns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Zervin R BaamAravind Eye Hospital, Madurai, Tamil Nadu 625001, India.
Angela ZhuWilmer Eye Institute, Baltimore, MD 21287, USA.
Shameema SikderJohns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Samuel YiuJohns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
Ravilla D RavindranAravind Eye Hospital, Madurai, Tamil Nadu 625001, India.
Kunal S ParikhJohns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
National Eye Institute · USJohns Hopkins Medicine · USAravind Eye Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo identify instrument holding archetypes used by experienced surgeons in order to develop a universal language and set of validated techniques that can be utilized in manual small incision cataract surgery (MSICS) curricula.

methodsExperienced cataract surgeons performed five MSICS steps (scleral incision, scleral tunnel, side port, corneal tunnel, and capsulorhexis) in a wet lab to record surgeon hand positions. Images and videos were taken during each step to identify validated hand position archetypes.

resultsFor each MSICS step, one or two major archetypes and key modifying variables were observed, including tripod for scleral incision, tripod-thumb bottom for scleral tunnel, underhand-index to thumb grip for side port, index-contact tripod for corneal entry, and tripod-forceps for capsulorhexis. Key differences were noted in thumb placement and number of fingers supporting the instrument, and modifying variables included index finger curvature and amount of flexion.

conclusionIdentification of optimal hand positions and development of a formal nomenclature has the potential to help trainees adopt hand positions in an informed manner, influence instrument design, and improve surgical outcomes.

Indexed as

cataractinstrument holdinglearning curvemanual small incision cataract surgerytraining

Identifiers

PMID34012883
PMCPMC8077013
OpenAlexW3158133486

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.