Evidence map›Paper›PMID 33093813›Full record

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

Prognostic factors and clinical outcomes after stereotactic radiotherapy for primary lung tumors.

Isabel Rodrigues, Tiago Figueiredo, João Gagean, Carolina Ferreira, André Laranja, Tiago Ramos, Sofia Conde, Diana Moreira, Joana Cardia

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. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 26% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
  2. 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

9 authors at 1 institution in 1 country.

Isabel RodriguesExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
Tiago FigueiredoExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
João GageanExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
Carolina FerreiraExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
André LaranjaExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
Tiago RamosExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
Sofia CondeExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
Diana MoreiraExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
Joana CardiaExternal Radiotherapy Department, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., 4200-072 Porto, Portugal.
IPO Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo characterize the population treated with SBRT for early-stage primary lung tumors in our institution, determine their outcomes, and identify potential prognosis factors.

backgroundStereotactic radiotherapy (SBRT) is an alternative treatment for inoperable patients with early-stage lung cancer. It confers a local control rate around 90% at 3 years, and 2-3 year overall survival rates of 43-60% in this population. MATERIALS AND

methodsWe retrospectively analyzed all patients treated in our department between 2012 and 2017 and evaluated local progression-free survival (L-PFS), nodal or distant progression-free survival (ND-PFS), global progression-free survival (G-PFS), overall survival (OS), and disease specific survival (DSS). Univariate (UVA) and multivariate (MVA) models were built to assess the influence of each variable.

resultsWe identified 218 patients with 233 tumors. Most were male (78.9%) with a median age of 73 years. Median follow-up was 22 months. At 18 months, L-PFS was 93.7%, ND-PFS was 82.2%, G-PFS was 76.0%, DSS was 90.5%, and OS was 78.0% in ≤ T2 tumors. On UVA, T2 tumors were associated with lower L-PFS, G-PFS and DSS than T1, with no significant impact on ND-PFS or OS, an effect that persisted on MVA. On UVA, L-PFS and G-PFS were negatively influenced by female gender and a 5-fraction schedule was associated with worse G-PFS, which was not confirmed on MVA.

conclusionOur local and distant control rates and survival were similar to those previously reported. On MVA, T2 tumors displayed lower L-PFS, G-PFS and DSS, with no difference in OS.

Indexed as

AC, AdenocarcinomaDSS, disease specific survivalEarly-stage lung cancerG-PFS, global progression-free survivalL-PFS, local progression-free survivalLung neoplasmsMVA, multivariate analysisND-PFS, nodal or distant progression-free survivalOS, overall survivalRadiotherapySBRTSCC, Squamous Cell CarcinomaUVA, univariate analysis

Identifiers

PMID33093813
PMCPMC7566212
OpenAlexW3090301550

What OpenQuestion holds

Textmetadata
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.