Evidence map›Paper›PMID 31577744›Full record

Observational studyMedicine2019

The usefulness of stereotactic radiosurgery for recursive partitioning analysis class II/III lung cancer patients with brain metastases in the modern treatment era.

In Bong Ha, Jin Ho Song, Bae Kwon Jeong, Hojin Jeong, Yun Hee Lee, Hoon Sik Choi, Ki Mun Kang

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact, top 81% 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it, 2 citations in OpenAlex.

  1. Pooled it
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

7 authors at 5 institutions in 1 country.

In Bong HaDepartment of Radiation Oncology, Gyeongsang National University School of Medicine, and Gyeongsang National University Hospital, Jinju.
Jin Ho SongDepartment of Radiation Oncology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul.
Bae Kwon JeongDepartment of Radiation Oncology, Gyeongsang National University School of Medicine, and Gyeongsang National University Hospital, Jinju.
Hojin JeongDepartment of Radiation Oncology, Gyeongsang National University School of Medicine, and Gyeongsang National University Hospital, Jinju.
Yun Hee LeeDepartment of Radiation Oncology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul.
Hoon Sik ChoiDepartment of Radiation Oncology, Gyeongsang National University School of Medicine, and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea.
Ki Mun KangInstitute of Health Science, Gyeongsang National University, Jinju.
Changwon National University · KRGyeongsang National University Hospital · KRGyeongsang National University · KRThe Catholic University of Korea Bucheon St. Mary's Hospital · KRThe Catholic University of Korea Seoul St. Mary's Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stereotactic radiosurgery (SRS) is considered the initial treatment for lung cancer patients with small-sized and limited number of brain metastases. The objective of this study was to assess clinical outcomes of SRS treatment using CyberKnife (CK) for recursive partitioning analysis (RPA) class II/III patients with 1 to 3 brain metastases from lung cancer and identify which patients in the high RPA class could benefit from SRS.A total of 48 lung cancer patients who received CK-based SRS for their metastatic brain lesions from 2010 to 2017 were retrospectively analyzed. Radiographic response was evaluated during follow-up period. Overall survival (OS) and intracranial progression-free survival (IPFS) were calculated and prognostic variables associated with OS and IPFS were evaluated.Median follow-up time was 6.6 months. Local control rates at 6 months and 1-year following SRS were 98% and 92%, respectively. The median OS of all patients was 8 months. One-year and 2-year OS rates were 40.8% and 20.9%, respectively. In multivariate analysis, uncontrolled primary disease (P = .01) and Eastern Cooperative Oncology Group performance status of 2 or 3 (P = .001) were independent prognostic factors for inferior OS. These 2 factors were also significantly associated with inferior IPFS. In subgroup analysis according to RPA class, primary disease status was the only prognostic factor, showing statistically significant OS differences in both RPA class II and III (controlled vs uncontrolled: 41.1 vs 12.3 months in RPA class II, P = .03; 26.9 vs 4.1 months in RPA class III, P = .01).Our results indicated that SRS could be an effective treatment option for RPA class II/III patients with brain metastases from lung cancer in the modern treatment era. SRS might be particularly considered for patients with controlled primary disease.

Indexed as

AgedAged, 80 and overBrain NeoplasmsFemaleHumansKaplan-Meier EstimateLung NeoplasmsMaleMiddle AgedPrognosisRadiosurgeryRetrospective StudiesSurvival Analysis

Identifiers

PMID31577744
PMCPMC6783249
OpenAlexW2978819703

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.