机械通气患者肠内营养与肠外营养支持对撤机时间的影响

Influence of enteral nutrition and parenteral nutrition support on weaning time in patients with mechanical ventilation

目的 :观察肠内营养与肠外营养支持对机械通气患者撤机时间的影响。方法 :将 6 0例机械通气患者随机分为肠内营养支持组 ( 30例 )和肠外营养支持组 ( 30例 ) ,观察撤机的时间 ,同时在营养支持前 1天及营养支持第 8天观察血清白蛋白和血红蛋白的变化。结果 :肠内营养支持组撤机时间明显早于肠外营养支持组 (P <0 .0 5 ) ,2周内的撤机成功率明显高于肠外营养支持组 (P <0 .0 1) ;患者的血清白蛋白在营养支持后较前升高明显 (P <0 .0 5 )。结论 :机械通气患者给予肠内营养支持符合生理状态 ,较肠外营养有更好的营养效果 ,能显著缩短机械通气时间 ,增加撤机成功率。

Objective: To study the relationship between enteral and panenteral nutrition and weaning time in patients with mechanical ventilation. Methods: 60 patients with mechanical ventilation were randomly assigned in to two groups. One group supported with enteral nutrition (30 subjects) and another with parenteral nutrition (30 subjects).The weaning time were observed.One day before and 8 days after nutritional support was given, the serum albumin and hemoglobin levels were observed, also, nitrogen equilibrium was calculated everyday. Results: The weaning time in enteral nutrition group was earlier than that of the parenteral nutrition group(P<0.05 );the weaning successful rate in enteral nutrition group was higher than that of the parenteral nutrition group (P<0.01);8 days after nutritional support, the albumin levels in enteral nutrition group was superior to before (P<0.05). Conclusions: For mechanical ventilation patients, enteral nutrition was keeping with physiological condition.Enteral nutrition has better nutritional effect,can reduce the time of mechanical ventilation,and increase the weaning rate.