International Journal of Nursing Research

Objective: To explore the clinical application effect of improving the tip of medium length venous catheters at different positions. Method Convenience: 120 patients with modified medium and long catheterization in our hospital from January 2022 to December 2022 were selected as the study subjects. After catheterization, a routine chest X-ray was performed to determine the position of the catheter tip. According to the position of the catheter tip, it was divided into three groups: subclavianvein group, brachiocephalic trunk vein group, and chest wall axillary vein group. Compare the incidence rate, unplanned extubation rate, and catheter retention time of complications such as catheter induced phlebitis, related thrombosis, infection, bleeding, and catheter blockage among the three groups of catheters. The total incidence of catheter related complications in the experimental group and the control group were 9.93% and 14.63%, respectively, and the extubation rates of complications were 2.13% and 4.07%, with P<0.05, indicating statistical significance. The extubation rate caused by complications is significantly lower than that of the control group, with significant differences and statistical significance. Moreover, there is a significant difference in the retention time of the catheter between the experimental group and the control group, with statistical significance (P<0.17). Conclusion: When the tip of the modified medium length venous catheter is located in the subclavian vein and brachiocephalic vein trunk, the incidence of catheter related complications is lower, the retention time is longer, and it is more suitable for clinical application.

Catheter length; Different tip positions; Retention observation; complication