Evidence map›Paper›PMID 28181993›Full record

ArticleClinical and translational gastroenterology2017

Bariatric Surgery Prior to Index Screening Colonoscopy Is Associated With a Decreased Rate of Colorectal Adenomas in Obese Individuals.

Dmitriy Kedrin, Shaan-Chirag Chandrahas Gandhi, Molly Wolf, Jatin Roper, Omer Yilmaz, Kathleen Corey, Hamed Khalili, Fatima Cody Stanford, Manish Gala

Open access · goldAbstract read
In one paragraph

Article in Clinical and translational gastroenterology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 24% 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, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Metabolism and Colorectal Cancer.Annual review of pathology · 2023
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Cancer risk after bariatric surgery - is colorectal cancer a special case?Nature reviews. Gastroenterology & hepatology · 2018
    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

9 authors at 4 institutions in 1 country.

Dmitriy KedrinDivision of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
Shaan-Chirag Chandrahas GandhiDivision of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
Molly WolfDivision of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
Jatin RoperKoch Institute for Integrative Cancer Research, MIT, Cambridge, Massachusetts, USA.
Omer YilmazKoch Institute for Integrative Cancer Research, MIT, Cambridge, Massachusetts, USA.
Kathleen CoreyDivision of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
Hamed KhaliliDivision of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
Fatima Cody StanfordThe Massachusetts General Weight Center, Massachusetts General Hospital, Boston, Massachusetts, USA.
Manish GalaDivision of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA.
Massachusetts General Hospital · USAllen Institute · USHarvard University · USKoch Institute for Integrative Cancer Research At MIT

Funding

RESEARCH TRAINING IN DIGESTIVE DISEASES AND NUTRITIONT32DK007191 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI RAYMOND T CHUNG · 1986 to 2026
$14.6M
Bone Metabolism in Adolescents Undergoing Bariatric SurgeryR01DK103946 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI BREDELLA, MIRIAM ANTOINETTE, MISRA, MADHUSMITA · 2015 to 2019
$3.2M
Genetics of Sessile Serrated PolypsK23DK103119 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI GALA, MANISH · 2014 to 2018
$960k
The role of Mtss1 in Hedgehog-mediated intestinal cancer stem cell functionK08CA198002 · NCI · TUFTS MEDICAL CENTER · PI ROPER, JATIN · 2015 to 2019
$845k
Regulation of the Intestinal Stem Cell Niche in AgingR00AG045144 · NIA · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI YILMAZ, OMER · 2014 to 2016
$740k
NCI NIH HHS K08 CA198002NIA NIH HHS R00 AG045144NIDDK NIH HHS K23 DK103119NIDDK NIH HHS R01 DK103946NIDDK NIH HHS T32 DK007191
6 · The paper itself

Abstract

objectivesObesity is an important risk factor for the development of colorectal cancer (CRC). Although the impact of bariatric surgery on CRC is conflicting, its impact on precursor lesions is unknown. The aim of this study was to determine whether bariatric surgery before index screening colonoscopy is associated with decreased development of colorectal adenomas.

methodsWe performed a retrospective cohort study of bariatric surgery patients who had undergone index, screening colonoscopy at an academic center from 2001 to 2014. Patients who had bariatric surgery at least 1 year before index colonoscopy were compared with those who had surgery after colonoscopy, using multivariable logistic regression to control for presurgical body mass index, sex, gender, race, type of surgery, aspirin use, metformin use, smoking, and age at colonoscopy.

resultsOne hundred and twenty-five obese individuals who had bariatric surgery before colonoscopy were compared with 223 individuals who had colonoscopy after surgery. Adenomatous polyps were found in 16.8% of individuals who had surgery first vs. 35.5% who had colonoscopy before bariatric surgery (unadjusted odds ratio (OR) 0.37, 95% confidence interval (CI): 0.21-0.64, P=0.0003). After multivariable adjustment, bariatric surgery before index screening colonoscopy was associated with a decreased risk of adenomas at index colonoscopy (adjusted OR 0.37, 95% CI: 0.19-0.69, P=0.002).

conclusionsBariatric surgery is associated with a decreased risk of colorectal adenomas in obese individuals without a family history of CRC.

Identifiers

PMID28181993
PMCPMC5387748
OpenAlexW2587291256

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.