结果西脒替丁组应激性上消化道出血的发生率为30%，明显高于奥美拉唑组12%，差异有非常显著意义（P<0.01）。

Result The occurent rate of upper alimentary tract hemorrhage rate of cimetidine group was30%, it was higher than that of omeprazole group(12%). There was significant difference(P<0.01).

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应激性胃粘膜病变是机体在应激状态下常见的并发症，容易引起上消化道出血，病死率很高。

Stress-induced gastric mucosal injury is one of common complications of upper gastrointestinal bleeding with high fatality rate .

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