Evidence map›Paper›PMID 30689026›Full record

Observational studyStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2019

Stereotactic body radiotherapy of central lung malignancies using a simultaneous integrated protection approach : A prospective observational study.

Rosario Mazzola, Ruggero Ruggieri, Vanessa Figlia, Michele Rigo, Niccolò Giaj Levra, Francesco Ricchetti, Luca Nicosia, Stefanie Corradini, Filippo Alongi

Abstract readObservational Study
PubMed Publisher
In one paragraph

Observational study in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–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

15 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  8. A multi-institutional analysis of fractionated versus single-fraction stereotactic body radiotherapy (SBRT) in the treatment of primary lung tumors: a comparison between two antipodal fractionations.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021
    Article
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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.

Rosario MazzolaRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy. rosariomazzola@hotmail.it.ORCID http://orcid.org/0000-0002-2838-7337
Ruggero RuggieriRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy.
Vanessa FigliaRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy.
Michele RigoRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy.
Niccolò Giaj LevraRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy.
Francesco RicchettiRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy.
Luca NicosiaRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy.
Stefanie CorradiniRadiation Oncology, LMU Munich, Munich, Germany.
Filippo AlongiRadiation Oncology, IRCCS, Sacro Cuore-Don Calabria Hospital, Negrar-Verona, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimIt is recognized that stereotactic body radiotherapy (SBRT) for centrally located lung metastases is affected by higher rates of severe toxicity. In the present study, we report the clinical outcomes following a novel intensity-modulated radiotherapy prescription dose, termed simultaneous integrated protection (SIP), for nearby organs at risk (OARs). MATERIALS AND

methodsThe prescribed total doses of SBRT were 70 Gy in 10 fractions and 60 Gy in 8 fractions. For ultra-centrally located lesions, a dose of 60 Gy in 10 fractions was delivered. The main planning instructions were: (1) to remain within the limits of the given dose constraints for an OAR; (2) to make use of the maximum possible dose to the OARs to minimize dose inhomogeneity for the Planning Target Volume (PTV). SBRT-related toxicity was prospectively assessed according to the Common Terminology Criteria for Adverse Events (CTCAE) v4.0. The primary clinical endpoint was the SBRT-related toxicity. Secondary endpoint was local control.

resultsForty patients affected by a single central malignancy were analyzed. The median follow-up was 20 months (range, 6-58 months). Acute and late clinical pulmonary toxicity ≥grade 2 was recorded in 2 out of 40 patients (5%) and 3 out of 40 patients (7%), respectively. No patient experienced cardiac toxicity. No narrowing or stenosis of any airway or vessel was registered. One-year local control rate was 91%. The median time to local progression was 13 months (range, 6-46 months).

conclusionSBRT using a PTV-SIP approach for single central lung metastases achieved low SBRT-related toxicity with acceptable local control.

Indexed as

AdultAgedAged, 80 and overDisease ProgressionDose Fractionation, RadiationFemaleFollow-Up StudiesHumansLungLung NeoplasmsMaleMiddle AgedOrgans at RiskProspective StudiesRadiation ProtectionRadiosurgeryLung malignanciesLung tumorOligometastasesRadioterapyToxicity

Identifiers

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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.