Image Guided Energy Ablation for Palliation of Painful Bony Metastases - A Systematic Review
Abstract
PURPOSE
To analyze the effectiveness of image-guided energy ablation techniques with and without concurrent therapies in providing palliative pain relief in patients with bone metastases.
MATERIALS AND METHODS
OVID Embase, OVID Medline, and Pubmed were searched from inception to April 14th, 2023 using search terms relating to bone lesions and MeSH terms regarding ablation therapy. English peer-reviewed primary articles were included that reported pain scores following image-guided energy-based ablation of bone metastases. Exclusion criteria included 1) non-palliative treatment, 2) pain scores associated with specific treatment modalities not reported, and 3) non-metastatic bone lesions. Mean percentage reduction in pain score was calculated.
RESULTS
1396 studies were screened and 54 were included. All but one study demonstrated decreased pain scores at final follow-up. Mean reduction in pain scores at final follow-up were 49% for radiofrequency ablation (RFA), 58% for radiofrequency ablation and adjunct (RFA-A), 54% for cryoablation (CA), 72% for cryoablation and adjunct (CA-A), 48% for microwave ablation (MWA), 81% for microwave ablation and adjunct (MWA-A), and 64% for high-intensity focused ultrasound (HIFU). Post-procedural adverse event rates were 4.9% for RFA, 34.8% for RFA-A, 9.6% for CA, 12.0% for CA-A, 48.9% for MWA, 33.5% for MWA-A and 17.0% for HIFU.
CONCLUSION
Image-guided energy ablation demonstrated consistently strong reduction in pain across all modalities,…
How strong is the evidence?
Evidence Hub reads this as a systematic review. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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