Evidence map›Paper›PMID 32519142›Full record

ArticleAnnals of surgical oncology2020

Adequate Lymphadenectomy as a Quality Measure in Esophageal Cancer: Is there an Association with Treatment Approach?

Cary Jo R Schlick, Rhami Khorfan, David D Odell, Ryan P Merkow, David J Bentrem

Abstract read
In one paragraph

Article in Annals of surgical oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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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

5 authors.

Cary Jo R SchlickDepartment of Surgery, Surgical Outcomes and Quality Improvement Center (SOQIC), Feinberg School of Medicine, Northwestern University, 633 N St. Clair St, Chicago, IL, 60611, USA.
Rhami KhorfanDepartment of Surgery, Surgical Outcomes and Quality Improvement Center (SOQIC), Feinberg School of Medicine, Northwestern University, 633 N St. Clair St, Chicago, IL, 60611, USA.
David D OdellDepartment of Surgery, Surgical Outcomes and Quality Improvement Center (SOQIC), Feinberg School of Medicine, Northwestern University, 633 N St. Clair St, Chicago, IL, 60611, USA.
Ryan P MerkowDepartment of Surgery, Surgical Outcomes and Quality Improvement Center (SOQIC), Feinberg School of Medicine, Northwestern University, 633 N St. Clair St, Chicago, IL, 60611, USA.
David J BentremDepartment of Surgery, Surgical Outcomes and Quality Improvement Center (SOQIC), Feinberg School of Medicine, Northwestern University, 633 N St. Clair St, Chicago, IL, 60611, USA. dbentrem@nm.org.

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
Vascular Surgery Scientist Training ProgramT32HL094293 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ESKANDARI, MARK K · 2009 to 2023
$4.0M
PA-20-072: Supplement to A Chicago Center of Excellence in Learning Health Systems Research Training (ACCELERAT)K12HS026385 · AHRQ · NORTHWESTERN UNIVERSITY AT CHICAGO · PI FRANKLIN, PATRICIA D, KHO, ABEL N. · 2018 to 2022
$3.4M
Development of a Novel Statewide Learning Collaborative to Increase Lung Cancer Guideline Adherence and Improve Cancer Care DeliveryK07CA216330 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ODELL, DAVID D. · 2017 to 2021
$836k
AHRQ HHS K12 HS026385HSRD VA I01 HX002290NCI NIH HHS K07 CA216330NCI NIH HHS L30 CA153420NCI NIH HHS P30 CA060553NHLBI NIH HHS 5T32HL094293NHLBI NIH HHS T32 HL094293
6 · The paper itself

Abstract

backgroundThe national comprehensive cancer network defines adequate lymphadenectomy as evaluation of ≥ 15 lymph nodes in esophageal cancer. However, varying thresholds have been suggested following neoadjuvant therapy.

objectivesOur objectives were to (1) explore trends in adequate lymphadenectomy rates over time; (2) evaluate unadjusted lymphadenectomy yield by treatment characteristics; and (3) identify independent factors associated with adequate lymphadenectomy.

methodsThe National Cancer Data Base was used to identify patients who underwent esophagectomy for cancer from 2004 to 2015. Adequate lymphadenectomy trends over time were evaluated using the Cochrane-Armitage test, and lymph node yield by treatment approach was compared using the Mann-Whitney U and Kruskal-Wallis tests. Associations with treatment factors were assessed by multivariable logistic regression.

resultsAmong 24,413 patients, 9919 (40.6%) had adequate lymphadenectomy. Meeting the nodal threshold increased over time (52.6% in 2015 vs. 26.0% in 2004; p < 0.01). Lymph node yield did not differ based on neoadjuvant therapy (median 12 [interquartile range 7-19] with and without neoadjuvant therapy; p = 0.44). Adequate lymphadenectomy was not associated with neoadjuvant therapy (40.5% vs. 40.8%, odds ratio [OR] 0.94, 95% confidence interval [CI] 0.82-1.07), but was associated with surgical approach (52.7% of laparoscopic cases, OR 1.28, 95% CI 1.06-1.56; 61.2% of robotic cases, OR 1.71, 95% CI 1.34-2.19, vs. 43.5% of open cases), and increasing annual esophagectomy volume (55.6% in the fourth quartile vs. 32.6% in the first quartile; OR 3.57, 95% CI 2.35-5.43).

conclusionsDespite increases over time, only 50% of patients undergo adequate lymphadenectomy during esophageal cancer resection. Adequate lymphadenectomy was not associated with neoadjuvant therapy. Focusing on surgical approach and esophagectomy volume may further improve adequate lymphadenectomy rates.

Indexed as

AdenocarcinomaEsophageal NeoplasmsLymph NodesEsophagectomyFemaleHumansLymph Node ExcisionMaleMiddle AgedNeoplasm StagingQuality of Health Care

Identifiers

PMID32519142
PMCPMC7282211

What OpenQuestion holds

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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.