| Objective:For neonates,especially preterm infants and high-risk neonates,extra parenteral nutrition is a key requirement for their growth and development.Due to the high permeability of parenteral nutrition solution,it is easy to cause secondary injuries such as drug extravasation when using conventional infusion tools.At present,the introduction of PICC makes the use of peripheral venous nutrient solution safer and more convenient.However,there is no unified standard for neonatal PICC insertion and tip positioning.In this study,a randomized controlled experiment was conducted to investigate the effect of intravascular electrocardiogram combined with ultrasound on the success rate and complications of neonatal PICC catheterization.Method:A total of 119 children with PICC catheter inserted through superior vena cava were selected from February 2021 to December 2021 in the neonatal intensive care unit of a class A general hospital in Sichuan Province,and were divided into the control group and the experimental group by random sampling method.Finally,there were 60 children in the control group and 59 children in the experimental group.The control group was catheterized under the conventional catheterization method.After the catheter arrived at the expected location,intracavity electrocardiogram and ultrasound technology were used for tip positioning.In the experimental group,the blood vessels were evaluated by ultrasound first.During catheterization,the position of catheter tip was located by ultrasound in real time.After the catheter reached the superior vena cava,the legal position of intracavity electrocardiogram was used.Statistical analysis software SPSS 26.0 was used for measuring data.Paired T test was used for comparison between the control group and the experimental group.Chi-square test was used to analyze the influence of two catheterization and positioning methods on the success rate of catheterization and catheter-related complications.Result:There were no significant differences in gender,birth weight,disease type and puncture site between the two groups(P>0.05).The success rate of intubation in the two groups was 70%in the control group and 94.9%in the experimental group,and the difference was statistically significant(P<0.05).There was no significant difference in the incidence of catheter-related complications between the two groups(P>0.05).Conclusion:Through experiment and analysis,in neonatal PICC catheter with cutting-edge positioning process,and used after conventional catheter lumen electrocardiogram(ecg)compared with ultrasonic positioning of the catheter methods,using ultrasound assessment of vascular conditions,first select the most suitable vein catheter,real-time positioning in the process of catheter PICC catheter tip position,finally using lumen electrocardiogram(ecg)for positioning,this method of catheter,The success rate of catheterization is higher,but the effect on catheter-related complications needs to be further studied. |