R0 Resection for Locally Advanced Pancreatic Cancer with Low-dose Gemcitabine with Wide Irradiation Area as Neoadjuvant Chemoradiotherapy

In Vivo
Hirofumi KamachiAkinobu Taketomi

Abstract

Local antitumor efficacy and the outcome of neoadjuvant chemoradiotherapy (NACRT) with low-dose gemcitabine and wide irradiation area for borderline resectable and unresectable pancreatic cancer were evaluated. Thirty-four cases of borderline resectable and unresectable pancreatic cancer were recruited. Three-dimensional conformal radiotherapy to the pancreatic bed and the region scheduled for lymph node dissection was performed to a total dose of 50.4 Gy28 fractions with gemcitabine at a dose of 150 mg/m2 weekly. Clinical and pathological results were examined. Twenty-seven patients (79.4%) completed the protocol. Grade 3/4 leucopenia (n=10), and grade 3 anorexia (n=1) occurred. Seven cases were excluded (two refused treatment; five had progressive disease), 20 underwent laparotomy, and 16 resected (47.1%) cases achieved R0 resection. Median survival time, and 3-year and 5-year survival rates were 39.0 months, and 56.3% and 28.1% in resected cases, respectively. NACRT with low-dose gemcitabine and wide irradiation area achieved 100% R0 resection and acceptable prognosis.

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