Indian Journal of Radiology Indian Journal of Radiology  

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Year : 2017  |  Volume : 27  |  Issue : 2  |  Page : 200-206
Early outcomes of radiofrequency ablation in unresectable metastatic colorectal cancer from a tertiary cancer hospital in India

1 Department of Radio-diagnosis, Tata Memorial Centre, Mumbai, Maharashtra, India
2 Department of Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
3 Department of Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
4 Department of Nuclear Medicine, Tata Memorial Centre, Mumbai, Maharashtra, India

Correspondence Address:
Nitin S Shetty
Interventional Radiology, Tata Memorial Centre, Mumbai - 400 012, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijri.IJRI_24_17

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Aims: The study was carried out to evaluate the early outcomes using Radiofrequency Ablation (RFA) for unresectable liver metastases in the management of metastatic colorectal cancer (mCRC) from an area of low endemicity. Material and Methods: 60 Patients with unresectable colorectal liver metastases had undergone 88 sessions of RFA from January 2007 till December 2013. The results were retrospectively analysed to evaluate the outcomes in terms of efficacy and survival rates. Results: The median follow up of patients in our series was 24.8months. 35/52 (67.3%) patients had complete response at 3 months while 8 patients were lost to follow up. Of the 17 patients who had recurrence, 4 (23.5%) were at the ablated site while 13 patients (76.4%) progressed elsewhere. Abdominal pain was commonest post procedural symptom (20%). There was no procedure related mortality or any major complications. Mean disease free interval and Progression free survival was 6.7 and 13.1 months. Estimated median survival in patients with liver limited disease and those with small lesion (<3cm) was 3.79 years and 3.45 years respectively. Median survival in patients with lesion size 3–5 cms was 1.5 years. Annual survival rates would be 94.5%, 55.2% and 26.2% for 1, 3 and 5 years. Conclusion: Radiofrequency ablation of unresectable liver metastases is effective in treatment of mCRC. Estimated survival rates and Annual survival rates at our institute from the low endemic region also follow the global trend. Size of the lesion was an important predictor of efficacy of RFA. Presence of extrahepatic disease and lesion size >3 cm was associated with decreased survival.

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