Unexpectedly frequent hepatitis B reactivation by chemoradiation in postgastrectomy patients

Cancer
Jason Chia-Hsien ChengJuei-Low Sung

Abstract

Postgastrectomy patients undergoing chemoradiation risk chemoradiation-induced liver disease (CRILD). The objectives of this study were to investigate dosimetric implications and assess biologic susceptibility to CRILD in these patients. Sixty-two patients with Stage IB-IV gastric/gastroesophageal adenocarcinoma without metastases underwent radical total/subtotal gastrectomy; regional lymph node dissection; and postoperative, adjuvant, concomitant chemoradiotherapy (CCRT). Among these, 8 patients developed CRILD (defined as Grade 3-4 liver toxicity), and 11 patients were chronic hepatitis B virus (HBV) carriers (HBV+). Chemotherapy consisted of 1 cycle of etoposide, leucovorin, and 5-fluorouracil (ELF); followed by 5 weekly high doses of 5-fluorouracil (2000-2600 mg/m2) and leucovorin concurrent with radiotherapy (median dose, 45 grays [Gy] to the tumor bed/regional lymphatics); followed by 3 cycles of ELF separated by a 21-day interval. Patients were followed for > or = 4 months after CCRT. Patient-related and dosimetric factors were correlated with CRILD. HBV+ status was the only independent factor associated with CRILD. HBV+ patients had a higher CRILD incidence (6 of 11 patients vs. 2 of 51 patients; P < 0.001). HBV-negativ...Continue Reading

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