Evidence map›Paper›PMID 42218354›Full record

ArticleCJEM2026

POCUS literature primer: key papers on first-trimester pregnancy and scrotal POCUS.

Maryse Fagnant, Claire L Heslop, Jordan Chenkin, Rajiv Thavanathan, Elizabeth Lalande, Steven Skitch, Paul Atkinson, Colin R Bell, Frank Myslik, David Lewis and 6 more

Abstract read
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In one paragraph

Article in CJEM, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

16 authors.

Maryse FagnantDepartment of Family and Emergency Medicine, Université de Montréal, Montreal, QC, Canada. maryse.fagnant@umontreal.ca.
Claire L HeslopDivision of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-1023-6936
Jordan ChenkinDivision of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-0303-6776
Rajiv ThavanathanDepartment of Emergency Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada.ORCID 0000-0001-8800-1232
Elizabeth LalandeDepartment of Emergency Medicine, Université Laval, Quebec City, QC, Canada.ORCID 0000-0001-9383-6808
Steven SkitchDivision of Emergency Medicine, Department of Medicine, McMaster University, Hamilton, ON, Canada.ORCID 0000-0002-1605-632X
Paul AtkinsonDepartment of Emergency Medicine, Dalhousie Medicine New Brunswick, Saint John, NB, Canada.ORCID 0000-0001-9900-4594
Colin R BellDepartment of Emergency Medicine, University of Calgary, Calgary, AB, Canada.ORCID 0000-0002-6416-8537
Frank MyslikDivision of Emergency Medicine, Department of Medicine, Western University, London, ON, Canada.ORCID 0000-0002-2471-592X
David LewisDepartment of Emergency Medicine, Dalhousie Medicine New Brunswick, Saint John, NB, Canada.ORCID 0000-0001-8696-1897
Tomislav JelicDepartment of Emergency Medicine, University of Manitoba, Winnipeg, MB, Canada.ORCID 0000-0003-3212-4625
Joseph NewbiggingDepartment of Emergency Medicine, Queen's University, Kingston, ON, Canada.ORCID 0000-0003-4324-6134
Gillian SheppardDiscipline of Emergency Medicine, Memorial University of Newfoundland, St. John's, NL, Canada.ORCID 0000-0003-1646-8794
Paul OlszynskiDepartment of Emergency Medicine, University of Saskatchewan, Saskatoon, SK, Canada.ORCID 0000-0002-3102-5652
Talia Burwash-BrennanDepartment of Family and Emergency Medicine, Université de Montréal, Montreal, QC, Canada.ORCID 0009-0005-5277-327X
Daniel J KimDepartment of Emergency Medicine, University of British Columbia & Vancouver General Hospital, Vancouver, BC, Canada.ORCID 0000-0003-0470-8279

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to determine the five most influential publications on first-trimester pregnancy point-of-care ultrasound (POCUS) and the five most influential publications on scrotal POCUS from an emergency medicine perspective. These two POCUS applications were selected, because they address time-sensitive clinical conditions in which early diagnosis is critical for appropriate management.

methodsAn expert panel of 15 emergency physicians was recruited from the Canadian Association of Emergency Physicians (CAEP) Emergency Ultrasound Committee and the Canadian Ultrasound Fellowship Collaborative. All participants had completed fellowship training in POCUS or possessed equivalent expertise, were actively engaged in scholarly work, and held leadership roles at the institutional or national level. A structured three-round modified Delphi process was conducted to achieve consensus. In each round, panelists independently nominated and ranked papers based on their perceived influence in informing us on how to use POCUS in clinical practice. Responses were discussed and refined across subsequent rounds until agreement was reached.

resultsIn round one, panelists nominated 40 papers focused on first-trimester pregnancy POCUS and 31 papers on scrotal POCUS. Following round two, 13 papers remained for first-trimester pregnancy POCUS and 10 for scrotal POCUS, with one additional paper added to each category after panel discussion. The final round produced ranked lists of the five most influential papers in each category. These papers emphasize the diagnostic value of POCUS in confirming intrauterine pregnancy and excluding ectopic pregnancy, its role in the timely recognition of testicular torsion, and its contribution to improving efficiency while reducing emergency department length of stay.

conclusionThis expert consensus provides a focused reading list of foundational literature in first-trimester pregnancy and scrotal POCUS. The compilation serves as a practical educational resource for clinicians and trainees and as a framework to support future research, curriculum development, and evidence-informed POCUS implementation.

Indexed as

Point-of-Care SystemsPregnancy ComplicationsPregnancy Trimester, FirstScrotumUltrasonography, PrenatalFemaleHumansMalePregnancyAcute scrotal painAcute scrotumEctopic pregnancyFirst trimester bleedFirst trimester pregnancyPOCUSPoint-of-care ultrasoundTesticular torsionUltrasound

Identifiers

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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.