Results There were 4 cases with venous tubing shedding and 5 cases with drug tubing misplacement and 6 cases with suture needle missing, 2 cases with hypothermia in control group during operation.

• 结果对照组发现术中静脉管道脱落4例，药物管道错位5例，缝针遗失6例，体温过低2例；