Predictive Factors of Local Recurrence after Colorectal Cancer Liver Metastases Thermal Ablation.

Greater security margins were associated with a lower recurrence rate in our study, significantly for the width, and almost significant for the length.

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The novel information provided by this study is that non-ovoid thermoablation site shape is related to local recurrence by univariate analysis and was borderline significant in multivariate analysis. “Heat Sink Effect” may be responsible for this shape and can explain why it is related to local recurrence, with suboptimal and unequal delivery of the heat.

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