Evidence map›Paper›PMID 33230687›Full record

ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2021

Survival Benefit of Adjuvant Chemotherapy After Pancreatoduodenectomy for Ampullary Adenocarcinoma: a Propensity-Matched National Cancer Database (NCDB) Analysis.

Sivesh K Kamarajah, Filip Bednar, Clifford S Cho, Hari Nathan

Open access · hybridAbstract read
In one paragraph

Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

7 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Article
  3. [Treatment of Ampullary Adenocarcinoma].The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi · 2023
    Review
  4. Article
  5. Article
  6. Article
  7. Treatment Approach to Adenocarcinoma of the Ampulla of Vater.Current treatment options in oncology · 2021
    Review
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

4 authors at 2 institutions in 2 countries.

Sivesh K KamarajahDepartment of Surgery, University Hospital Birmingham NHS Trust, Birmingham, UK.ORCID 0000-0002-2748-0011
Filip BednarDepartment of Surgery, 2210A Taubman Health Care Center, University of Michigan, 1500 E Medical Center Dr, SPC 5343, Ann Arbor, MI, 48109-5343, USA.
Clifford S ChoDepartment of Surgery, 2210A Taubman Health Care Center, University of Michigan, 1500 E Medical Center Dr, SPC 5343, Ann Arbor, MI, 48109-5343, USA.
Hari NathanDepartment of Surgery, 2210A Taubman Health Care Center, University of Michigan, 1500 E Medical Center Dr, SPC 5343, Ann Arbor, MI, 48109-5343, USA. drnathan@umich.edu.
University of Michigan · USFreeman Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe benefit of adjuvant chemotherapy (AC) after pancreatoduodenectomy (PD) for ampullary adenocarcinoma is uncertain. We aimed to evaluate the association of AC with survival in patients with resected ampullary adenocarcinoma.

methodsUsing the National Cancer Database (NCDB) data from 2004 to 2016, patients with non-metastatic ampullary adenocarcinoma who underwent PD were identified. Patients with neoadjuvant radiotherapy and chemotherapy and survival < 6 months were excluded. Propensity score matching was used to account for treatment selection bias. A multivariable Cox proportional hazards model was then used to analyze the association of AC with survival.

resultsOf 3186 (43%) AC and 4172 (57%) no AC (noAC) patients, 1720 AC and 1720 noAC patients remained in the cohort after matching. Clinicopathologic variables were well balanced after matching. After matching, AC was associated with improved survival (median 47.5 vs 39.6 months, p = 0.003), which remained after multivariable adjustment (HR: 0.83, CI

conclusionIn this large retrospective cohort study, AC after resected ampullary adenocarcinoma was associated with a survival benefit in patients, including patients with node-negative and margin-negative disease.

Indexed as

AdenocarcinomaCommon Bile Duct NeoplasmsAnticoagulantsChemotherapy, AdjuvantHumansPancreaticoduodenectomyRetrospective StudiesAnticoagulantsAdjuvant therapyAmpullary cancerResection

Identifiers

PMID33230687
PMCPMC8275534
OpenAlexW3108064539

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.