Microwave Ablation with or Without Chemotherapy in Management of Non-Small Cell Lung Cancer: A Systematic Review

Abstract

Introduction

 Microwave ablation (MWA) has emerged as a minimally invasive treatment for patients with inoperable non-small cell lung cancer (NSCLC). However, whether it is more effective as a standalone treatment or in combination with chemotherapy warrants further investigation. This systematic review assesses the efficacy and safety of MWA as a standalone treatment and in combination with chemotherapy in managing NSCLC.

Methods

Studies were included if MWA was used either as a standalone treatment or combined with chemotherapy for managing NSCLC, regardless of whether chemotherapy was administered before or after MWA.

Results

The patient cohort included 928 patients. In 63.8% of the cases, MWA was used alone, and in 36.2% with chemotherapy. Complications from MWA alone were higher (59.29% vs. 32.74%). The tumor stage in 52.36% of the cases who underwent MWA alone was stage I; however, it was the IV stage in 82.44% of the cases who underwent MWA combined with chemotherapy. Patients with available data and treated with MWA alone experienced higher local progression (26% vs. 18.5%), distant recurrence (51.5% vs. 38.5%), and both local and distant recurrence (10.8% vs. 2.6%). Reported complete response was 88.6% among cases that underwent MWA alone. While it was 78.0% in those who underwent combined MWA and chemotherapy. The median overall survival was higher in the MWA alone group (24.9 to 69.6 months vs. 21.3 to 23.90 months).

Conclusion

MWA combined with chemotherapy may represent a more effective option, with a slightly similar treatment response, reducing the risk of recurrence and minimizing complications.