Correlation Analysis of PICC Tip Position and Weight Gain in Very Low Birth Weight Infants

  • Yu Chen
Keywords: Very low birth weight infants; PICC catheter; Tip position; Weight gain; Correlation


This paper explores the correlation between the position of PICC tip and weight gain in very low birth weight infants. The position of the tip of the catheter, the weight of the chest film taken during and after the catheter placement, and the puncture position of the catheter were observed carefully. The relationship between the tip position of PICC catheter and the time of weight gain was analyzed. (7.02 ± 6.25) d is the average age of the child, (1061.02 ± 250.03) g is the average weight at the time of catheterization, (24.06 ± 9.26) d is the average time of catheterization, and (45.78 ± 26.09)% is the average growth rate of the child's weight at the time of the last chest radiograph. During the last chest radiograph, the highest incidence of catheter tip displacement was 2.5 vertebral bodies and 3 vertebral bodies away from the heart, which were 21.11% and 24.44% respectively. There was a negative correlation between the displacement of the tip of the catheter and the weight of low birth weight infants (P < 0.05). That is to say, the position of the tip of the PICC catheter would be further away from the heart when the weight of the very low birth weight infants was increasing. There is a very close relationship between the position of the tip of PICC and the weight growth of very low birth weight infants. Through the close monitoring of the growth rate of children's weight, we can predict the displacement of the tip of the positioning catheter, so as to reduce the incidence of complications and promote the significant improvement of nursing satisfaction.