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ORIGINAL ARTICLE
Year : 2015  |  Volume : 11  |  Issue : 2  |  Page : 433-437

Adjuvant chemoradiotherapy in periampullary cancers - Where does it stand with conformal radiotherapy: A single institution experience


Department of Radiation Oncology, Post Graduate Institute of Medical Education and Research, Chandigarh, Punjab, India

Correspondence Address:
Rakesh Kapoor
Department of Radiation Oncology, Post Graduate Institute of Medical Education and Research, Chandigarh - 160 012, Punjab
India
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Source of Support: A preliminary report of this study was presented in the 15th ESMO GI cancers in Barcelona and the abstract had been published in Annals of Oncology 24;2013 suppl 4: P81. The authors have updated the full results with more number of patients till 2012 (20072012) that is, for 5 years., Conflict of Interest: None


DOI: 10.4103/0973-1482.144353

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Background: Treatment of periampullary cancer involves Whipple surgery, followed by adjuvant radiotherapy and chemotherapy. Postoperative radiotherapy is particularly useful in managing high-risk patients (tumors involving the pancreas, poorly differentiated histology, involved lymph nodes and positive margins). Here, we review our results of treatment of 84 patients treated by surgery and adjuvant radiotherapy and chemotherapy. Material and Methods: A retrospective analysis of 84 patients of periampullary cancers treated in our department between January 2007 and December 2012 was carried out. All patients underwent Whipples surgery followed by postoperative radiotherapy 45-50 Gy/25-28 number in those presenting with high-risk features. Radiotherapy was delivered using three-dimensional conformal technique with 6 MV photons using three field treatment plans. Chemotherapy was given for 6 cycles using gemcitabine and oxaliplatin regimen repeated 2 weekly. Results: Eighty four postoperative patients with high-risk features were available for the final analysis. There were 69 males and 15 female patients. There were 34.5% stage I, 57.1% stage II and 8.3% stage III patients. At end of adjuvant treatment with radiotherapy and chemotherapy 70% patients had a complete response, 7.5% had residual disease, 15% showed progressive disease, 5% were dead and 2.5% defaulted the treatment. The mean number of chemotherapy cycles received was 2.6. At 1 year follow-up the probability of disease free survival was 80% for node-negative patients versus 73% for node-positive disease (P = 0.27). Patients with stage up to IIA had a 1 year disease free survival of 83% versus 40% for patients with stage beyond IIA (P = 0.024). Conclusions: Our results showed a trend favoring lymph node negative status with disease free survival. With computed tomography based planning, adequate delineation of draining nodes is possible, and radiation toxicity has significantly decreased. Adequate coverage of nodal basins during radiotherapy planning is important, and stage of the disease seems to be an important prognostic factor.


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