Evidence map›Paper›PMID 32911309›Full record

ArticleBreast (Edinburgh, Scotland)2020

The impact on clinical outcomes of post-operative radiation therapy delay after neoadjuvant chemotherapy in patients with breast cancer: A multicentric international study.

Gustavo Nader Marta, Reem AlBeesh, Allan A Lima Pereira, Leandro Jonata Oliveira, Max S Mano, Tarek Hijal

Abstract readMulticenter Study
In one paragraph

Article in Breast (Edinburgh, Scotland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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

6 authors.

Gustavo Nader MartaDepartment of Radiation Oncology - Hospital Sírio-Libanês, Sao Paulo, Brazil; Department of Radiology and Oncology - Radiation Oncology Unit, Faculdade de Medicina da Universidade de São Paulo - Instituto Do Câncer Do Estado de São Paulo (ICESP), Sao Paulo, Brazil. Electronic address: gustavo.marta@hc.fm.usp.br.
Reem AlBeeshDivision of Radiation Oncology, McGill University Health Centre, Montréal, Quebec, Canada. Electronic address: reem.albeesh@mail.mcgill.ca.
Allan A Lima PereiraDepartment of Clinical Oncology - Hospital Sírio-Libanês, Sao Paulo, Brazil. Electronic address: allan.pereira.onco@gmail.com.
Leandro Jonata OliveiraDepartment of Clinical Oncology - Hospital Sírio-Libanês, Sao Paulo, Brazil. Electronic address: leandrojco1986@gmail.com.
Max S ManoDepartment of Clinical Oncology - Hospital Sírio-Libanês, Sao Paulo, Brazil. Electronic address: max.mano@gmail.com.
Tarek HijalDivision of Radiation Oncology, McGill University Health Centre, Montréal, Quebec, Canada. Electronic address: tarek.hijal@muhc.mcgill.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionRadiation therapy (RT) is frequently used for post-operative treatment in breast cancer (BC) patients who received preoperative systemic therapy (PST) and surgery. Nevertheless, the optimal timing to start RT is unclear. MATERIAL AND

methodsData from BC patients who underwent chemotherapy as PST, breast surgery and RT at 3 Institutions in Brazil and Canada from 2008 to 2014 were evaluated. Patients were classified into three groups regarding to the time to initiation of RT after surgery: <8 weeks, 8-16 weeks and >16 weeks.

resultsA total of 1029 women were included, most of them (59.1%; N = 608) had clinical stage III. One hundred and forty-one patients initiated RT within 8 weeks, 663 between 8 and 16 weeks and 225 beyond 16 weeks from surgery. With a median follow-up of 32 months, no differences in disease-free survival (DFS), overall survival and locoregional recurrence-free survival (LRRFS) were observed of time to indicated RT (<8 weeks versus 8-16 weeks versus >16 weeks). However, in luminal subtype patients (46.5%; N = 478), initiation of RT up to 8 weeks after surgery was associated with better LRRFS (<8 weeks versus >16 weeks: HR 0.22; 95%CI 0.05-0.86; p = 0.03), with a tendency to a better DFS (<8 weeks versus >16 weeks: HR 0.50; 95%CI 0.25-1.00).

conclusionRT initiated up to 8 weeks after surgery was related to better LRRFS in luminal BC patients who underwent PST. Our results suggest that early start of RT is important for these patients.

Indexed as

MastectomyTime FactorsAdultBrazilBreast NeoplasmsCanadaChemotherapy, AdjuvantDisease-Free SurvivalFemaleHumansMiddle AgedNeoadjuvant TherapyNeoplasm Recurrence, LocalNeoplasm StagingPostoperative PeriodRadiotherapy, AdjuvantBreast cancerChemotherapyRadiation therapySurvival

Identifiers

PMID32911309
PMCPMC7486605

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.