Evidence map›Paper›PMID 34795938›Full record

ArticleJournal of thoracic disease2021

Evaluation of local aggressive lung therapy versus systemic therapy in oligometastatic non-small cell lung cancer: a systematic review and meta-analysis.

Chenxi Zhang, Nan Ma, Qitong Zhang, Kaifu Zheng, Chuang Sun, Xiyang Tang, Xiaofei Li, Jinbo Zhao

Open access · diamondAbstract read
In one paragraph

Article in Journal of thoracic disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 35% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. 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

8 authors at 2 institutions in 1 country.

Chenxi Zhang *Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China.
Nan Ma *Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi'an, China.
Qitong Zhang *School of Stomatology, Xi'an Medical University, Xi'an, China.
Kaifu ZhengDepartment of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China.
Chuang SunDepartment of Cardiology, Xi'an International Medical Center Hospital, Xi'an, China.
Xiyang TangDepartment of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China.
Xiaofei LiDepartment of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China.
Jinbo ZhaoDepartment of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China.
Air Force Medical University · CNXi'an Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have shown the feasibility and effectiveness of local aggressive thoracic therapy (surgery and radiotherapy) for oligometastatic non-small cell lung cancer compared with systemic therapy, but with small sample. This study aims to perform a pooled analysis to explore whether LT could improve outcomes of oligometastatic patients with non-small cell lung cancer.

methodsProtocol of present study was registered on PROSPERO as number: CRD42021233095. PubMed, Embase and Web of knowledge were searched, and eligible studies investigating local therapy for non-small cell lung cancer with 1-5 metastases regardless of organs were included. Linear regression between survival and clinical characteristics were conducted. Hazard ratios of survival and adverse effects were merged. Pooled survival curves were carried out.

resultsThree randomized controlled trials and 5 cohort studies enrolling 499 patients were included. There was a trend that median overall survival declined with the increasing proportion of N2-3 positive patients in local therapy group, but with no statistical difference (P=0.09, R

conclusionsLocal aggressive thoracic therapy could prolong 7 months overall and progression-free survival compared with systemic therapy in patients with oligometastatic non-small cell lung cancer. Consolidative local therapy might be a more favorable choice of local therapy. Benefits of local therapy for N2-3 positive patients should explored further.

Indexed as

meta-analysisNon-small cell lung cancer (NSCLC)oligometastasisradiotherapysurgery

Identifiers

PMID34795938
PMCPMC8575811
OpenAlexW3198890347

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.