Evidence map›Paper›PMID 21751204›Full record

ArticleCancer2012

Management of malignant colonic polyps: a population-based analysis of colonoscopic polypectomy versus surgery.

Gregory S Cooper, Fang Xu, Jill S Barnholtz Sloan, Siran M Koroukian, Mark D Schluchter

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02328664 (The Sensitivity of Scar-biopsies for Residual Colorectal Adenocarcinoma After Endoscopic Resection With Uncertain Radicality), which is not on this map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 7% 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.

NCT02328664 naterminatednot on this mapstarted 2015, after this paper: background citation

The Sensitivity of Scar-biopsies for Residual Colorectal Adenocarcinoma After Endoscopic Resection With Uncertain Radicality

TypeinterventionalSponsorDr. Frank ter Borg MD PhDRan2015 to 2019Enrolled246ConditionsColorectal CancerArmsFlexible sigmoidoscopy or colonoscopy
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Competing Mortality Redefines the Net Benefit of Additional Surgery After Endoscopic Resection for T1 Colorectal Cancer in Older Adults.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Management of high and low risk malignant polyps: a population-wide analysis.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2023
    Article
  12. Article
  13. Article
  14. Role of Endoscopic Resection Versus Surgical Resection in Management of Malignant Colon Polyps: a National Cancer Database Analysis.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2020
    Article
  15. Article
  16. Article
  17. Management of Malignant Adenomas.Clinics in colon and rectal surgery · 2015
    Review
  18. Observational
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Gregory S CooperDivision of Gastroenterology, University Hospitals Case Medical Center, Cleveland, Ohio 44106-5066, USA. gregory.cooper@uhhospitals.org
Fang Xu
Jill S Barnholtz Sloan
Siran M Koroukian
Mark D Schluchter
Case Comprehensive Cancer CenterCase Western Reserve University · US

Funding

Colonoscopy: Practice Patterns and LimitationsR01CA132862 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI COOPER, GREGORY S. · 2009 to 2011
$774k
NCI NIH HHS R01 CA132862
6 · The paper itself

Abstract

backgroundThe management of colon polyps containing invasive carcinoma includes surgical resection or colonoscopic polypectomy. To date, there are very limited population-based data comparing outcomes with the 2 management approaches.

methodsUsing the linked Surveillance Epidemiology and End Results-Medicare database, we identified 2077 patients aged ≥66 years with an initial diagnosis of stage T1N0M0 malignant polyp from 1992-2005. Patients were categorized as surgical or polypectomy depending on the most invasive treatment. To adjust for potential selection bias in treatment assignment, using multivariate analysis, patients were divided into quintiles of likelihood of polypectomy (propensity scores), and outcomes were compared in each quintile.

resultsSurgical resection was performed in 1340 (64.5%) patients and polypectomy was performed in 737 (35.5%) patients. Predictors for undergoing polypectomy (P<.001) included older age, greater comorbidity, no history of polyps, diagnosis in 2002 or later, left colon site of cancer, well-differentiated tumors, and colonoscopy performed in an outpatient setting. Both 1-year and 5-year survival were higher in the surgical group (92% and 75%, respectively) than in the polypectomy group (88% and 62%, respectively). The unadjusted hazard ratio was 1.51 (95% confidence interval [CI], 1.31-1.74). After adjusting for propensity quintile, the hazard ratio was 1.15 (95% CI, 0.98-1.33). Within each propensity quintile, the risk of death was similar between the 2 groups (interaction test P = .96).

conclusionsIn this large, population-based sample, more than one-third of patients with malignant polyps were treated with colonoscopic polypectomy. Outcomes were similar to surgical patients with comparable clinical characteristics and could be offered to patients who meet appropriate clinical criteria.

Indexed as

ColectomyAgedAged, 80 and overColonic NeoplasmsColonic PolypsColonoscopyDisease ManagementFemaleFollow-Up StudiesHumansIntestinal PolypsIntestine, LargeMaleOhioPrognosisSEER Program

Identifiers

PMID21751204
PMCPMC3193545
OpenAlexW2163880308

What OpenQuestion holds

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Registered trials

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.