Evidence map›Paper›PMID 30444988›Full record

ArticleThe Annals of thoracic surgery2019

Induction Radiation Therapy for Esophageal Cancer: Does Dose Affect Outcomes?

Tara R Semenkovich, Pamela P Samson, Jessica L Hudson, Melanie Subramanian, Bryan F Meyers, Benjamin D Kozower, Daniel Kreisel, G Alexander Patterson, Clifford G Robinson, Jeffrey D Bradley and 1 more

Abstract read
In one paragraph

Article in The Annals of thoracic surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.4field-weighted citation impact, top 12% 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, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Radiation doses in esophageal cancer.Journal of thoracic disease · 2019
    Article
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 1 institution in 1 country.

Tara R SemenkovichDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri.
Pamela P SamsonDepartment of Radiation Oncology, Washington University in St. Louis, St. Louis, Missouri.
Jessica L HudsonDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri.
Melanie SubramanianDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri.
Bryan F MeyersDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri.
Benjamin D KozowerDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri.
Daniel KreiselDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri.
G Alexander PattersonDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri.
Clifford G RobinsonDepartment of Radiation Oncology, Washington University in St. Louis, St. Louis, Missouri.
Jeffrey D BradleyDepartment of Radiation Oncology, Washington University in St. Louis, St. Louis, Missouri.
Varun PuriDivision of Cardiothoracic Surgery, Department of Surgery, Washington University in St. Louis, St. Louis, Missouri. Electronic address: varunpuri@wustl.edu.
Washington University in St. Louis · US

Funding

BASIC SCIENCE RESEARCH TRAINING: CARDIOPULMONARY SURGERYT32HL007776 · NHLBI · WASHINGTON UNIVERSITY · PI DAMIANO, RALPH J · 1994 to 2020
$4.6M
PREDICTIVE MODELING IN LUNG CANCERK07CA178120 · NCI · WASHINGTON UNIVERSITY · PI PURI, VARUN · 2013 to 2017
$789k
NCI NIH HHS K07 CA178120
6 · The paper itself

Abstract

backgroundWide variation is seen in the dosage of preoperative induction radiation therapy for esophageal cancer. We investigated associations between outcomes after esophagectomy and dosage of induction radiation therapy.

methodsPatients undergoing induction radiation therapy (30 to 70 Gy), followed by esophagectomy, were identified from the National Cancer Database and classified as low (<40 Gy), standard (40 to 50.4 Gy), and high dose (>50.4 Gy). Perioperative outcomes and overall survival were compared. Subgroup analysis compared two common dosages: 45 Gy and 50.4 Gy.

resultsFrom 2004 to 2014, 10,738 patients (84.7%) received standard-dose radiation, increasing from 69.7% in 2004 to 93.6% in 2014 (p < 0.001), 1,329 (10.5%) received low-dose radiation, and 608 (4.8%) received high-dose radiation. Higher rates of pathologic complete response (pCR; low: 11.7%, standard: 16.2%, high: 21.0%; p < 0.001) and downstaging (low: 52.0%, standard: 56.4%, high: 63.1%, p = 0.001) were observed as the dosage increased. On multivariable analysis, compared with standard-dose, high-dose radiation was associated with higher 30-day mortality (odds ratio [OR], 2.11; p < 0.001) without a higher likelihood of downstaging or pCR. Low-dose radiation was associated with lower likelihood of downstaging (OR, 0.85; p = 0.04) and pCR (OR, 0.67; p < 0.001) without lowering the risk of 30-day mortality. The dose of 50.4 Gy was associated with higher likelihood of pCR (OR, 1.12; p = 0.04), without affecting 30-day mortality, compared with 45 Gy.

conclusionsHigh-dose induction radiation (>50.4 Gy) is associated with increased perioperative death after esophagectomy, without a significant improvement in tumor response. Low-dose radiation (<30 Gy) is associated with worse tumor response without a lower risk of perioperative death. Within standard dosages, 50.4 Gy is associated with higher likelihood of pCR without adversely affecting perioperative mortality compared with 45 Gy.

Indexed as

EsophagectomyNeoplasm StagingDose-Response Relationship, RadiationEsophageal NeoplasmsFemaleFollow-Up StudiesHumansMaleMiddle AgedMissouriNeoadjuvant TherapyPreoperative CareRadiotherapy DosageRetrospective StudiesSurvival RateTreatment Outcome

Identifiers

PMID30444988
PMCPMC6382550
OpenAlexW2901858232

What OpenQuestion holds

Textmetadata
LicenceTDM
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.