Methods
This was a prospective, randomized study at a tertiary university hospital. Inclusion criteria were severe trauma adult patients requiring arterial catheter insertion for intraoperative monitoring. Patients were randomized to 2 groups, group1 used ultrasound imaging to guiding arterial cannulation,group 2 used traditional palpation method.U-test,Wilcoxon signed rank sum test were used for statistical analysis.
Sichuan 610041, China
Arterial cannulation may be very difficult and time-consuming in severe trauma patients with palpation method due to weak pulse. Complications were relate to multiple attempts to cannulate the artery. The purpose of this study was to establish a new artery cannulate method with ultrasound guided, avoiding traditional going through and draw backtechnique. compare ultrasound guided versus traditional palpation placement of arterial lines for time to placement, number of attempts, sites used.
