Analysis of the Status and Influencing Factors of Failed Ultrasound-guided Invasive Arterial Catheterization in ICU Patients

Background: Catheter failure means that the arterial catheter loses its original real-time and accurate function of monitoring the blood pressure due to various causes, such as blockage, buckling, displacement of the catheter, edema, bleeding, and oozing of the punctured limb requiring catheter removal. However, there have been few studies about the catheter failure and its related influencing factors. The present study aims to explore the status and influencing factors of failed ultrasound-guided invasive arterial catheterization in ICU patients. Methods: 264 patients who underwent ultrasound-guided invasive arterial catheterization from January 2019 to December 2019 were analyzed retrospectively to observe the status and failure of the arterial catheterization. Statistical analysis was performed using SPSS22.0 software. Results: Among the 264 cases with invasive arterial catheterization, 59 cases had catheter failure, the incidence was 22.34%. Single factor analysis showed that the use of analgesics, the protective catheter sleeve, and the affected limb restraints could prevent catheter failure significantly (P