Evidence map›Paper›PMID 34406469›Full record

ArticleSurgical endoscopy2022

Lower conversion rate with robotic assisted rectal resections compared with conventional laparoscopy; a national cohort study.

Elisabeth Myrseth, Linn Såve Nymo, Petter Fosse Gjessing, Hartwig Kørner, Jan Terje Kvaløy, Stig Norderval

Open access · hybridAbstract read
In one paragraph

Article in Surgical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 16% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Observational
  4. Review
  5. Article
  6. Towards safer colorectal surgery worldwide: Outcomes and benchmarks from the ESCP CORREA 2022 audit.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2025
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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

6 authors at 2 institutions in 1 country.

Elisabeth MyrsethDepartment of Gastrointestinal Surgery, University Hospital of North Norway, 9019, Tromsø, Norway. elisabeth.jensen1@unn.no.ORCID 0000-0002-1045-3682
Linn Såve NymoDepartment of Gastrointestinal Surgery, University Hospital of North Norway, 9019, Tromsø, Norway.
Petter Fosse GjessingDepartment of Gastrointestinal Surgery, University Hospital of North Norway, 9019, Tromsø, Norway.
Hartwig KørnerDepartment of Gastrointestinal Surgery, Stavanger University Hospital, 4068, Stavanger, Norway.
Jan Terje KvaløyDepartment of Mathematics and Physics, University of Stavanger, 4036, Stavanger, Norway.
Stig NordervalDepartment of Gastrointestinal Surgery, University Hospital of North Norway, 9019, Tromsø, Norway.
University Hospital of North Norway · NOStavanger University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConversion from laparoscopic to open access colorectal surgery is associated with a poorer postoperative outcome. The aim of this study was to assess conversion rates and outcomes after standard laparoscopic rectal resection (LR) and robotic laparoscopic rectal resection (RR).

methodsA national 5-year cohort study utilizing prospectively recorded data on patients who underwent elective major laparoscopic resection for rectal cancer. Data were retrieved from the Norwegian Registry for Gastrointestinal Surgery and from the Norwegian Colorectal Cancer Registry. Primary end point was conversion rate. Secondary end points were postoperative complications within 30 days and histopathological results. Chi-square test, two-sided T test, and Mann-Whitney U test were used for univariable analyses. Both univariable and multivariable logistic regression analyses were used to analyze the relations between different predictors and outcomes, and propensity score matching was performed to address potential treatment assignment bias.

resultsA total of 1284 patients were included, of whom 375 underwent RR and 909 LR. Conversion rate was 8 out of 375 (2.1%) for RR compared with 87 out of 909 (9.6%) for LR (p < 0.001). RR was associated with reduced risk for conversion compared with LR (aOR 0.22, 95% CI 0.10-0.46). There were no other outcome differences between RR and LR. Factors associated with increased risk for conversion were male gender, severe cardiac disease and BMI > 30. Conversion was associated with higher rates of major complications (20 out of 95 (21.2%) vs 135 out of 1189 (11.4%) p = 0.005), reoperations (13 out of 95 (13.7%) vs 93 out of 1189 (7.1%) p = 0.020), and longer hospital stay (median 8 days vs 6 days, p = 0.001).

conclusionConversion rate was lower with robotic assisted rectal resections compared with conventional laparoscopy. Conversions were associated with higher rates of postoperative complications.

Indexed as

LaparoscopyRectal NeoplasmsRobotic Surgical ProceduresCohort StudiesHumansMalePostoperative ComplicationsRetrospective StudiesTreatment OutcomeComplicationsConversionLaparoscopyRectal resectionRobotic

Identifiers

PMID34406469
PMCPMC9001201
OpenAlexW3193837755

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.