Objective: To study the clinical effect of enteral nutrition(EN) support for acute severe pancreatitis(ASP) by comparing the curative effect of EN and parenteral nutrition(PN) support for ASP.Methods: 65 cases of ASP were randomized into EN group and PN group to observe the nutritional status

immnological index

infectious rate

mortality

hospitalization duration and costs of the two groups.Results: After nutritional support

serum albumin

pro-albumin and siderin in both groups obviously increased and blood glucose and amylase significantly decreased(P<0.05);IgA decreased in PN group(P<0.05)

but increased in EN group.There were less complication lower infectious rate

mortality

costs and shorter hospitalization duration in EN group than in PN group(P<0.05).Conclusion: If there is no absolute Contraindication

early EN support is safe and effective.It can obviously improve the nutritional status and survival rate of ASP patients

decrease occurrence of Complication and hospitalization costs and shorten hospitalization duration with satisfactory effect.