Evidence map›Paper›PMID 34992859›Full record

ArticleReports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology2021

Local control of 1-5 fraction radiotherapy regimens for spinal metastases: an analysis of the impacts of biologically effective dose and primary histology.

Roman O Kowalchuk, David Cousins, Kelly M Spencer, K Martin Richardson, James M Larner, Timothy N Showalter, William H McAllister, Jason P Sheehan, C Ronald Kersh, Sunil W Dutta

Open access · diamondAbstract read
In one paragraph

Article in Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Vertebral hemangioma - the current radiation therapy perspective.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology · 2023
    Review
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

10 authors at 4 institutions in 1 country.

Roman O KowalchukDepartment of Radiation Oncology, Mayo Clinic, Rochester, United States.ORCID https://orcid.org/0000-0001-6142-6310
David CousinsDepartment of Radiation Oncology, University of Virginia, Charlottesville, United States.
Kelly M SpencerRadiosurgery Center, University of Virginia/Riverside, Newport News, United States.
K Martin RichardsonRadiosurgery Center, University of Virginia/Riverside, Newport News, United States.
James M LarnerDepartment of Radiation Oncology, University of Virginia, Charlottesville, United States.
Timothy N ShowalterDepartment of Radiation Oncology, University of Virginia, Charlottesville, United States.
William H McAllisterDepartment of Neurosurgery, Riverside Regional Medical Center, Newport News, United States.
Jason P SheehanDepartment of Neurosurgery, University of Virginia, Charlottesville, United States.
C Ronald KershRadiosurgery Center, University of Virginia/Riverside, Newport News, United States.
Sunil W DuttaDepartment of Radiation Oncology, Emory University, Atlanta, United States.
Riverside Regional Medical Center · USUniversity of Virginia · USEmory University · USMayo Clinic · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis analysis evaluates the impacts of biologically effective dose (BED) and histology on local control (LC) of spinal metastases treated with highly conformal radiotherapy to moderately-escalated doses. MATERIALS AND

methodsPatients were treated at two institutions from 2010-2020. Treatments with less than 5 Gy per fraction or 8 Gy in 1 fraction were excluded. The dataset was divided into three RPA classes predictive of survival (1). The primary endpoint was LC.

results223 patients with 248 treatments met inclusion criteria. Patients had a median Karnofsky Performance Status (KPS ) of 80, and common histologies included breast (29.4%), non-small cell lung cancer (15.7%), and prostate (13.3%). A median 24 Gy was delivered in 3 fractions (BED: 38.4 Gy) to a median planning target volume (PTV) of 37.3 cc. 2-year LC was 75.7%, and 2-year OS was 42.1%. Increased BED was predictive of improved LC for primary prostate cancer (HR = 0.85, 95% CI: 0.74-0.99). Patients with favorable survival (RPA class 1) had improved LC with BED ≥ 40 Gy (p = 0.05), unlike the intermediate and poor survival groups. No grade 3-5 toxicities were reported.

conclusionsModerately-escalated treatments were efficacious and well-tolerated. BED ≥ 40 Gy may improve LC, particularly for prostate cancer and patients with favorable survival.

Indexed as

dose-escalationmetastasispalliative carespinestereotactic body radiation therapy (SBRT)

Identifiers

PMID34992859
PMCPMC8726428
OpenAlexW3195040526

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.