Evidence map›Paper›PMID 27450208›Full record

ArticleSurgical endoscopy2017

A comparison of endoscopic localization error rate between operating surgeons and referring endoscopists in colorectal cancer.

Arash Azin, Fady Saleh, Michelle Cleghorn, Andrew Yuen, Timothy Jackson, Allan Okrainec, Fayez A Quereshy

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

13 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Observational
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  10. A Real-Time Endoscope Motion Tracker.IEEE journal of translational engineering in health and medicine · 2022
    Article
  11. Article
  12. Article
  13. Preoperative repeat endoscopy for colorectal cancer: What is its role and when is it necessary?Canadian journal of surgery. Journal canadien de chirurgie · 2016
    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

7 authors at 4 institutions in 1 country.

Arash AzinDivision of General Surgery, University of Toronto, Toronto, ON, Canada.
Fady SalehDivision of General Surgery, William Osler Health System, Etobicoke, ON, Canada.
Michelle CleghornDivision of General Surgery, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Room 8MP-320, Toronto, ON, M5T 2S8, Canada.
Andrew YuenDivision of General Surgery, University of Toronto, Toronto, ON, Canada.
Timothy JacksonDivision of General Surgery, University of Toronto, Toronto, ON, Canada.
Allan OkrainecDivision of General Surgery, University of Toronto, Toronto, ON, Canada.
Fayez A QuereshyDivision of General Surgery, University of Toronto, Toronto, ON, Canada. Fayez.Quereshy@uhn.ca.
University of Toronto · CAUniversity Health Network · CAToronto Western Hospital · CAWilliam Osler Health System · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColonoscopy for colorectal cancer (CRC) has a localization error rate as high as 21 %. Such errors can have substantial clinical consequences, particularly in laparoscopic surgery. The primary objective of this study was to compare accuracy of tumor localization at initial endoscopy performed by either the operating surgeon or non-operating referring endoscopist.

methodsAll patients who underwent surgical resection for CRC at a large tertiary academic hospital between January 2006 and August 2014 were identified. The exposure of interest was the initial endoscopist: (1) surgeon who also performed the definitive operation (operating surgeon group); and (2) referring gastroenterologist or general surgeon (referring endoscopist group). The outcome measure was localization error, defined as a difference in at least one anatomic segment between initial endoscopy and final operative location. Multivariate logistic regression was used to explore the association between localization error rate and the initial endoscopist.

resultsA total of 557 patients were included in the study; 81 patients in the operating surgeon cohort and 476 patients in the referring endoscopist cohort. Initial diagnostic colonoscopy performed by the operating surgeon compared to referring endoscopist demonstrated statistically significant lower intraoperative localization error rate (1.2 vs. 9.0 %, P = 0.016); shorter mean time from endoscopy to surgery (52.3 vs. 76.4 days, P = 0.015); higher tattoo localization rate (32.1 vs. 21.0 %, P = 0.027); and lower preoperative repeat endoscopy rate (8.6 vs. 40.8 %, P < 0.001). Initial endoscopy performed by the operating surgeon was protective against localization error on both univariate analysis, OR 7.94 (95 % CI 1.08-58.52; P = 0.016), and multivariate analysis, OR 7.97 (95 % CI 1.07-59.38; P = 0.043).

conclusionsThis study demonstrates that diagnostic colonoscopies performed by an operating surgeon are independently associated with a lower localization error rate. Further research exploring the factors influencing localization accuracy and why operating surgeons have lower error rates relative to non-operating endoscopists is necessary to understand differences in care.

Indexed as

ColonoscopyDiagnostic ErrorsReferral and ConsultationAgedColectomyColorectal NeoplasmsFemaleHumansMaleRetrospective StudiesSurgeonsColonoscopyColorectal cancerEndoscopyTumor localization

Identifiers

PMID27450208
OpenAlexW2490035222

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.