Evidence map›Paper›PMID 32734414›Full record

ArticleInternational journal of colorectal disease2020

Determining whether postoperative chemoradiotherapy is required in patients with pathologic T3N0 rectal cancer with negative resection margin.

Jong Yun Baek, Jeong Il Yu, Hee Chul Park, Doo Ho Choi, Gyu Sang Yoo, Woo Yong Lee, Seong Hyeon Yun, Yong Beom Cho, Yoon Ah Park, Hee Cheol Kim and 1 more

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In one paragraph

Article in International journal of colorectal disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.3field-weighted citation impact, top 43% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Review
  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

11 authors at 2 institutions in 1 country.

Jong Yun BaekDepartment of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Jeong Il YuDepartment of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. jeongil.yu@samsung.com.ORCID http://orcid.org/0000-0002-2009-7263
Hee Chul ParkDepartment of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. hee.ro.park@samsung.com.
Doo Ho ChoiDepartment of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Gyu Sang YooDepartment of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Woo Yong LeeDepartment of General Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Seong Hyeon YunDepartment of General Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Yong Beom ChoDepartment of General Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Yoon Ah ParkDepartment of General Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Hee Cheol KimDepartment of General Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Heerim NamDepartment of Radiation Oncology, Gangbook Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Samsung Medical Center · KRKangbuk Samsung Hospital · KR

Funding

Ministry of Education NRF-2017R1D1A1B03031275
6 · The paper itself

Abstract

purposeThis study aimed to identify the risk factors for locoregional recurrence (LR) and determine possible candidates for postoperative concurrent chemoradiotherapy (CCRT) in pathologic T3N0 (pT3N0) rectal cancer patients with a negative resection margin after total mesorectal excision (TME).

methodData from 365 patients who had pT3N0 rectal cancer between 2003 and 2012 in the Samsung Medical Center were reviewed. All patients underwent upfront surgery without preoperative treatment. Postoperative management involved either no adjuvant therapy (n = 122), chemotherapy alone (n = 100), or CCRT (n = 143).

resultsThe median follow-up duration was 71 months. The 5-year overall survival, disease-free survival, and LR-free survival (LRFS) rates were 95.9%, 86.9%, and 96.3%, respectively. When comparing the three groups (surgery alone [n = 122], chemotherapy alone [n = 100], and CCRT [n = 143]), there was no significant difference in LRFS among them (94.0%, 93.4%, and 99.2%, respectively; p = 0.20). However, when patients were stratified by risk factors (distance from anal verge ≤ 5 cm and distal resection margin [DRM] ≤ 2 cm), the 5-year LRFS improved by more than 10% by adding CCRT (98.9% with CCRT vs. 87.4% without CCRT, p = 0.006) in those with more than one risk factor. Postoperative CCRT did not affect the 5-year LRFS (100% with CCRT vs. 99.0% without CCRT, p = 0.66) in patients with no risk factors.

conclusionPostoperative CCRT significantly decreased LR in patients with pT3N0 rectal cancer with a negative resection margin but having a distance from the anal verge ≤ 5 cm or DRM ≤ 2 cm.

Indexed as

Margins of ExcisionRectal NeoplasmsChemoradiotherapyDisease-Free SurvivalHumansNeoplasm Recurrence, LocalNeoplasm StagingRetrospective StudiesTreatment OutcomeLocalRadiotherapyRectal neoplasmRecurrenceRisk factors

Identifiers

PMID32734414
OpenAlexW3046750712

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.