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Original Articles

Survival Outcome after Stereotactic Body Radiation Therapy and Surgery for Early Stage Non-Small Cell Lung Cancer: A Meta-Analysis

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Pages 440-447 | Received 31 May 2016, Accepted 07 Sep 2016, Published online: 22 Aug 2017
 

ABSTRACT

Objective: Treatment modalities in medically compromised patients with early-stage non-small cell lung cancer (NSCLC) are controversial. Stereotactic body radiotherapy (SBRT) or stereotactic ablative radiotherapy has been increasingly recognized as a favorable alternative to surgical resection for early-stage NSCLC. Many retrospective analyses compared the efficacy of stereotactic body radiotherapy (SBRT) with surgery for early-stage non-small cell lung cancer (NSCLC). However, the efficacy between SBRT and surgery regimens for patients with early-stage NSCLC remains unclear. This study aimed to investigate the efficacy between SBRT and surgery. Methods: Publications on comparison SBRT with Surgery in treatment of early stage non-small cell lung cancer (NSCLC) from 2011 to 2017 were collected. Retrospective trials analyzed the summary hazard ratios (HRs) of overall survival (OS), disease-free survival (DFS), local control survival (LC), regional control survival (RC), loco-regional control survival (LRC), and distant control survival (DC) between SBRT and Surgery. The major outcomes measures were hazard ratios (HRs). Meta-analysis Revman 5.3 software was used to analyze the combined Pooled HRs using fixed- or random-effects models according to the heterogeneity. Result: A systematic literature search was conducted including14 studies. In this meta-analysis, patients with SBRT achieved inferior OS, DFS, LC, RC, LRC and DC, compared with surgery. Conclusion: In this study we found more favorable outcomes with stage I NSCLC treated with SBRT. The surgery had no obvious advantages in this meta-analysis. Although surgery has become the recommended treatment at present, SBRT has potential to be an alternative treatment as a novel non-invasive radiation therapy modality in patients with stage I-II NSCLC.

This article refers to:
Stereotactic Body Radiation Therapy and Surgery for Early Stage Non-Small Cell Lung Cancer
Invited Commentary. The Royalty of Evidence: The Randomized Control Trials

Conflict of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the article.

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