Evidence map›Paper›PMID 32166451›Full record

ArticleStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2020

Association between acute histopathological changes of rectal walls and late radiation proctitis following radiotherapy for prostate cancer.

Franco Campostrini, Andrea Remo, Laura Astati, Manuel Zorzi, Giulia Capodaglio, Alberto Buffoli, Gaia Moretti, Barbara Della Monica, Caterina Zanella, Giuseppe Verlato

Abstract read
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In one paragraph

Article in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 29% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. In reply to Afkhami Ardekani M et al.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2021
    Article
  6. Review
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  8. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Franco CampostriniDepartment of Radiation Oncology, "Mater Salutis" Hospital, Legnago, Italy. fcampostrini@aliceposta.it.
Andrea RemoDepartment of Pathology, "Mater Salutis" Hospital, Via Gianella 1, 37045, Legnago, Italy. remino76@yahoo.it.
Laura AstatiDepartment of Pathology, "Mater Salutis" Hospital, Via Gianella 1, 37045, Legnago, Italy.
Manuel ZorziVeneto Tumour Registry, Azienda Zero, Padova, Italy.
Giulia CapodaglioEpidemiological Department, Azienda Zero, Padova, Italy.
Alberto BuffoliRadiotherapy Department, Istituto Clinico S. Anna, Brescia, Italy.
Gaia MorettiRadiotherapy Department, Istituto Clinico S. Anna, Brescia, Italy.
Barbara Della MonicaRadiotherapy Department, Istituto Clinico S. Anna, Brescia, Italy.
Caterina ZanellaDepartment of Pathology, "Mater Salutis" Hospital, Via Gianella 1, 37045, Legnago, Italy.
Giuseppe VerlatoUnit of Epidemiology and Medical Statistics, University of Verona, Verona, Italy.
Fondazione Progetto Ematologia · ITUniversity of Verona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe impact of acute histopathological changes (HC) of the rectum on development of late clinical proctitis (LCP) after external radiotherapy (RT) for prostate cancer is poorly explored and was the primary end point of this prospective study.

methodsIn 70 patients, 15 HC of early rectal biopsies after RT were identified, whereby RT was conventional 2D RT in 41 cases and conformational 3D RT in 29. Associations of HC in anterior and posterior rectal walls (ARW, PRW) with LCP, acute endoscopic (AEP) and acute clinical proctitis (ACP) were statistically evaluated considering as explicative variables the patient general characteristics and the HC.

resultsThe mean patients' follow-up was 123.5 months (24-209). The median prostatic dose was 72 Gy (2 Gy/fraction). For the 41 and 29 patients the ARW and PRW doses were 64 and 49 Gy vs. 63 and 50 Gy, respectively. The incidence of LCP ≥ grade 2 at 10 years was 12.9%. The univariate (p = 0.02) and Kaplan-Meyer methods (p = 0.007) showed that the gland (or crypts) loss in the ARW was significantly associated with LCP. AEP and ACP occurred in 14.3 and 55.7% of cases. At multivariate level AEP significantly correlated with hemorrhoids (p = 0.014) and neutrophilia in ARW (p = 0.042).

conclusionsEarly after RT, substantial gland loss in ARW is predictive of LCP. To reduce this complication with conventional fractionation, we suggest keeping the mean dose to ARW ≤48-52 Gy.

Indexed as

Acute DiseaseAdenocarcinomaAgedCombined Modality TherapyDose Fractionation, RadiationDose-Response Relationship, RadiationFollow-Up StudiesHumansIncidenceKaplan-Meier EstimateMaleMiddle AgedOrgans at RiskProctitisProctoscopyProspective StudiesProstate cancer radiotherapyRadiation proctitisRadiotherapy complicationsRectumVMAT

Identifiers

PMID32166451
OpenAlexW3011594113

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.