Clinical StudyMicrowave Thermal Ablation of Spinal Metastatic Bone Tumors
Section snippets
Materials and Methods
Local institutional review board approval was obtained, and written informed consent was waived. The medical records of patients were reviewed, and the following data were collected and evaluated: demographic and clinical data, tumor characteristics, and information about pain.
Procedure
Technical success was achieved in 100% of cases. The mean ablation time was 4.4 minutes ± 2.7 (range, 1–8 min), with an average of 3.8 cycles per ablation and a mean ablation power of 60 W (range, 30–70 W). Two patients underwent a second ablation session as a result of tumor recurrence. No complications were noted during or after the procedures. Analyses of the postprocedural CT scans did not reveal any immediate procedure-related complications.
Pain
The preprocedure mean VAS score was 7.4 ± 1.2
Discussion
The present study showed that microwave ablation of spinal metastatic lesions appears to be a feasible and effective procedure for pain relief in patients with refractory painful spinal tumors. Indeed, immediate pain reduction was obtained following all but one procedure, and pain relief lasted 6 months. These results were obtained with a minimally invasive procedure under local anesthesia, with no complications. Pain alleviation was obtained immediately after the procedure (compared with the
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From the SIR 2013 Annual Meeting.
None of the authors have identified a conflict of interest.