B超引导, 心电监护定位, 患儿, PICC置管

Objective: To investigate the effect of type-B ultrasonography and electrocardiography on the PICC in the newborn. Methods: A total of 110 newborn received the PICC were selected as research objects and randomly divided into the observation group (n=55) and the control group (n=55). The newborns in control group were inserted under the guidance of type-B ultrasonography, and the newborns in other group were monitored by electrocardiography at the same time. The position of the catheter was detected by ultrasonography and P waves of electrocardiogram. The tip position of the catheter, the one-time success rate, the time of insertion and the amount of bleeding of all newborns in the two groups were recorded and compared. In addition, X-ray was used as a golden standard to assess the accuracy of P wave.Results: The success rate of catheterization of observation group and control groups were 96.36% and 83.63% respectively. It was significantly higher in observation group. The set time and blood loss of observation group were significantly less than that of control group. The prediction accuracy of P waves was 90.91%, the congruence rate of P waves and X-ray detection was good (Kappa=0.548，P＜0.001). Conclusion: Type-B ultrasonography combined with electrocardiography can significantly improve the success rate of PICC insertion, and improve the one-time rate, shorten the time of insertion and reduce the amount of bleeding.

Type-B ultrasonography guided, Electrocardiography；Newborn；PICC insertion