Evidence map›Paper›PMID 33303000›Full record

ArticleRadiation oncology (London, England)2020

Is local radiotherapy a viable option for patients with an opening of the ventricles during surgical resection of brain metastases?

Sophia Scharl, Kerstin A Kessel, Christian Diehl, Jens Gempt, Bernhard Meyer, Claus Zimmer, Christoph Straube, Stephanie E Combs

Open access · goldAbstract read
In one paragraph

Article in Radiation oncology (London, England), 2020. 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
0.4field-weighted citation impact, top 32% 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, 4 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Sophia ScharlDepartment of Radiation Oncology, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany.
Kerstin A KesselDepartment of Radiation Oncology, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany.
Christian DiehlDepartment of Radiation Oncology, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany.
Jens GemptDepartment of Neurosurgery, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany.
Bernhard MeyerDepartment of Neurosurgery, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany.
Claus ZimmerDepartment of Diagnostic and Interventional Neuroradiology, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany.
Christoph StraubeDepartment of Radiation Oncology, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany.
Stephanie E CombsDepartment of Radiation Oncology, Technische Universität München (TUM), Ismaninger Straße 22, Munich, Germany. Stephanie.combs@tum.de.ORCID http://orcid.org/0000-0002-5233-1536
Technical University of Munich · DEHelmholtz Zentrum München · DEGerman Marine Research Consortium · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLocal hypofractionated stereotactic radiotherapy (HFSRT) of the resection cavity is emerging as the standard of care in the treatment of patients with a limited number of brain metastases as it warrants less neurological impairment compared to whole brain radiotherapy. In periventricular metastases surgical resection can lead to an opening of the ventricles and subsequently carries a potential risk of cerebrospinal tumour cell dissemination. The aim of this study was to assess whether local radiotherapy of the resection cavity is viable in these cases.

methodsFrom our institutional database we analyzed the data of 125 consecutive patients with resected brain metastases treated in our institution with HFSRT between 2009 and 2017. The incidence of LMD, overall survival (OS), local recurrence (LC) and distant recurrence were evaluated depending on ventricular opening (VO) during surgery.

resultsFrom all 125 patients, the ventricles were opened during surgery in 14 cases (11.2%). None of the patients with VO and 7 patients without VO during surgery developed LMD (p = 0.371). OS (p = 0.817), LC (p = 0.524) and distant recurrence (p = 0.488) did not differ in relation to VO during surgical resection. However, the incidence of distant intraventricular recurrence was slightly increased in patients with VO (14.3% vs. 2.7%, p < 0.01).

conclusionVO during neurosurgical resection did not affect the outcome after HFSRT of the resection cavity in patients with brain metastases. Particularly, the incidence of LMD was not increased in patients receiving local HFSRT after VO. HFSRT can therefore be offered independently of VO as a local treatment of tumor bed after resection of brain metastases.

Indexed as

AdultAgedAged, 80 and overBrain NeoplasmsCerebral VentriclesHumansMeningeal NeoplasmsMiddle AgedNeoplasm Recurrence, LocalRadiosurgeryYoung AdultBrain metastasesHypofractionated stereotactic radiotherapyLeptomeningeal diseaseLocal radiotherapyVentricular opening

Identifiers

PMID33303000
PMCPMC7730779
OpenAlexW3111609726

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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.