Percutaneous image-guided microwave and cryoablation for lung sarcoma
Leesburg, VA, October 7, 202 - Outcomes between percutaneous microwave (MWA) and cryoablation of sarcoma lung metastases have not been compared to our knowledge.
According to ARRS' American Journal of Roentgenology (AJR), percutaneous image-guided microwave and cryoablation allow for repeat minimally invasive treatment of sarcoma lung metastases with manageable, predominantly mild complications.
Percutaneous MWA and cryoablation are both suited for treatment of sarcoma lung metastases, especially for tumors ≤1 cm, whether peripheral or non-peripheral. Complications, if they occur, are not life-threatening.
The researchers evaluated ablation modality, tumor size, and location (peripheral vs non-peripheral) in relation to local tumor progression using proportional Cox hazard models with death as competing risk. They estimated OS using the Kaplan-Meier method.
"High primary technical success, local control, and overall survival support microwave and cryoablation for treating sarcoma lung metastases," concluded 2019 ARRS Scholar Florian J. Fintelmann of Massachusetts General Hospital and Harvard Medical School. Noting that ablation modality and tumor location did not affect local progression (p>.05), "treatment failure was low, especially for small tumors," Fintelmann continued.
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