Efficacy of palliative radiotherapy for gastric bleeding in patients with unresectable advanced gastric cancer: a retrospective cohort study

摘要

Background Bleeding negatively impacts quality of life in patients with unresectable advanced gastric cancer and has the potential to be lethal. When blood transfusion and endoscopic hemostasis are unsuccessful to stop bleeding, radiation to stomach is selected in patients with unsuitable condition for surgery. We performed a retrospective cohort study to clarify the utility of radiotherapy in treating gastric bleeding, particularly for patients with limited life expectancy. Methods We evaluated the efficacy and safety of palliative radiotherapy in patients with advanced gastric cancer between January 2007 and December 2012 in Aichi Cancer Center Hospital. All patients had gastric bleeding requiring blood transfusion. We defined hemostasis as an increase in hemoglobin level to more than 7.0?g/dL together with the cessation of melena or hematemesis for at least 1?week. Results During the study period, 313 advanced gastric cancer patients treated in our institution. Of these 17 patients received gastric radiotherapy to stop bleeding. Two patients were excluded from analysis due to combined treatment of intravascular embolization. Eleven out of 15 patients (73?%) had undergone two or more previous chemotherapy regimens. Ten patients (67?%) had an Eastern Cooperative Oncology Group performance status of 3 and 14 patients (93?%) were in palliative prognostic index group B or C. The median total planned radiation dose was 30?Gy in 10 fractions. At a median interval of 2?days after initiation of radiotherapy, 11 patients (73?%) achieved hemostasis; rebleeding was observed in four patients (36?%). The median hemoglobin level before radiotherapy was significantly increased from 6.0 to 9.0?g/dL (p?p?=?0.007). The median rebleeding-free survival interval was 27?days, with a median overall survival of 63?days. The cause of death was bleeding in 1 patient (7?%) and cancer progression without bleeding in 12 patients (80?%). There were no severe adverse events attributable to radiotherapy. Conclusions Palliative radiotherapy for gastric bleeding achieves hemostasis within a short time frame. This appears to be a useful treatment option, especially for patients with end-stage, unresectable advanced gastric cancer.