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Clinical outcomes and prognostic factors in gastric cancer patients aged ≥85 years undergoing endoscopic submucosal dissection.
Gastrointestinal Endoscopy 2017 May
BACKGROUND AND AIMS: Although the number of gastric cancer patients aged ≥85 years indicated for endoscopic submucosal dissection (ESD) has increased, little is known about the outcomes and prognostic factors. This study aimed to investigate the clinical outcomes and prognostic factors for overall survival (OS) of patients aged ≥85 years who underwent ESD for gastric cancer.
METHODS: We retrospectively reviewed 108 patients aged ≥85 years with 149 gastric cancers treated by ESD between 1999 and 2014 at our institution. The clinical outcomes and prognosis were evaluated. Furthermore, the relationships between patient and lesion characteristics with OS were determined using the Kaplan-Meier method and a Cox proportional hazards model.
RESULTS: All patients had Eastern Cooperative Oncology Group performance status (PS) of 0 to 1. En bloc, R0, and curative resections were achieved in 98.0%, 91.3%, and 72.7%, respectively, without severe adverse events requiring surgery. During a median follow-up period of 40.2 months (range, 1.8-108.7 months), 23 patients died, including 2 of gastric cancer. The 3-year (54.3% vs 95.9%) and 5-year (54.3% vs 76.3%) OS rates were significantly lower in patients with a low (<44.6) as opposed to a higher (≥44.6) prognostic nutritional index (PNI) (P < .001). The PNI was independently prognostic of OS (hazard ratio, 7.0; 95% confidence interval, 2.2-22.9; P = .001).
CONCLUSIONS: ESD is feasible for gastric cancer patients aged ≥85 years with good PS. However, low PNI was found to be prognostic of reduced OS, indicating the need to evaluate the PNI in determining whether to perform ESD.
METHODS: We retrospectively reviewed 108 patients aged ≥85 years with 149 gastric cancers treated by ESD between 1999 and 2014 at our institution. The clinical outcomes and prognosis were evaluated. Furthermore, the relationships between patient and lesion characteristics with OS were determined using the Kaplan-Meier method and a Cox proportional hazards model.
RESULTS: All patients had Eastern Cooperative Oncology Group performance status (PS) of 0 to 1. En bloc, R0, and curative resections were achieved in 98.0%, 91.3%, and 72.7%, respectively, without severe adverse events requiring surgery. During a median follow-up period of 40.2 months (range, 1.8-108.7 months), 23 patients died, including 2 of gastric cancer. The 3-year (54.3% vs 95.9%) and 5-year (54.3% vs 76.3%) OS rates were significantly lower in patients with a low (<44.6) as opposed to a higher (≥44.6) prognostic nutritional index (PNI) (P < .001). The PNI was independently prognostic of OS (hazard ratio, 7.0; 95% confidence interval, 2.2-22.9; P = .001).
CONCLUSIONS: ESD is feasible for gastric cancer patients aged ≥85 years with good PS. However, low PNI was found to be prognostic of reduced OS, indicating the need to evaluate the PNI in determining whether to perform ESD.
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