Objective To probe into the curative effect of twice gastric lavage in rescuing patients with acute organophosphorus pesticide poisoning.Method 120cases of patients with acute organophosphorus pesticide poisoning received from January

2008to January

2013were given single gastric lavage and twice gastric lavage

and the curative effect was contrasted.Results Survival rate of patients receiving twice gastric lavage was 95.6% while that of patients receiving single gastric lavage was 90.4%;recovery time of cholinesterase activity for patients receiving twice gastric lavage was（8.0±1.2）d while that for patients receiving single gastric lavage was（10.0±1.4）d;hospitalization time for patients receiving twice gastric lavage was（11.0±2.1）d while that for patients receiving single gastric lavage was（15.0±2.9）d.Conclusion In rescuing patients with acute organophosphorus pesticide poisoning

curative effects of the twice gastric lavage are significantly better than the single gastric lavage.