Methods The subjects were divided into ketongwang group (42), magnesium sulphate group (49) and routine group (45) in order to determine their prevention from trocar phlebitis.

• 方法对克痛王预防组52例、硫酸镁预防组49例、常规组45例中套管针静脉炎的发生率进行分析,比较各方法的预防效果。