Evidence map›Paper›PMID 39380451›Full record

SynthesisThoracic cancer2024

Prophylactic cranial irradiation in patients with resected small-cell lung cancer: A systematic review and meta-analysis.

Haoning Peng, Jianqi Hao, Bo Dong, Minqi Chen, Zongyuan Li, Cong Chen, Lunxu Liu

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Thoracic cancer, 2024. 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
–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

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

  1. Pooled it
  2. Review
  3. Article
  4. Neuroendocrine neoplasms of the lung: The latest updates.World journal of clinical oncology · 2025
    Review
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.

Haoning PengDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.ORCID 0000-0003-1388-3255
Jianqi HaoDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Bo DongDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Minqi ChenDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Zongyuan LiDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Cong ChenDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.
Lunxu LiuDepartment of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China.ORCID 0000-0003-3964-5378

Funding

1.3.5 Project for Disciplines of Excellence, West China Hospital, Sichuan University ZYJC21002
6 · The paper itself

Abstract

Prophylactic cranial irradiation (PCI) was recommended for limited-stage small-cell lung cancer (SCLC) patients with complete or partial response to primary chemoradiotherapy. But it is still controversial regarding its role in SCLC patients who have had radical resection. This meta-analysis aims to evaluate the efficacy of PCI in resected SCLC patients. We searched PubMed, EMBASE, Web of Science, CENTRAl, and ClinicalTrials for controlled trials and cohort studies regarding PCI in postoperative SCLC patients. The correlation between PCI and post-operative outcomes in SCLC patients, including survival and brain metastasis rate (BMR), was examined using hazard ratios (HRs) and risk ratios with corresponding 95% confidence intervals. Quality of studies was assessed by the Newcastle-Ottawa Scale (NOS), and publication bias was assessed by Begg's test. Meta-analysis of eight studies with 2688 patients in total showed PCI was associated with improved overall survival (OS) for resected SCLC (HR: 0.65, 95% CI: 0.57-0.75, p < 0.01). In addition, subgroup analysis on three studies including 923 patients confirmed the protective role of postoperative PCI in N0 SCLC patients (HR: 0.79, 95% CI: 0.61-0.97, p < 0.05). There was also a significant reduction in BMR in the PCI group pooled from six studies (HR: 0.58, 95% CI: 0.40-0.85, p < 0.01). The use of PCI delayed brain recurrence and improved OS in patients with resected, stage I-III SCLC. Importantly, patients with N0 SCLC can also benefit from postoperative PCI. In future studies, PCI's role in patients with resected N0 SCLC at different T stage may need to be explored.

Indexed as

Brain NeoplasmsCranial IrradiationLung NeoplasmsSmall Cell Lung CarcinomaHumanscranial irradiationsmall‐cell lung carcinomathoracic surgery

Identifiers

PMID39380451
PMCPMC11554546

What OpenQuestion holds

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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.