Abstract
OBJECTIVE This study aims to investigate the impact of pre-connecting pressure transducers on the efficacy of ultrasound-guided radial artery puncture and catheterization in patients with gastrointestinal tumors.Method Seventy-five eligible patients undergoing elective gastrointestinal tumor surgery were randomly divided into two groups: the pre-connected pressure sensor puncture group (group P = 38) and the conventional puncture group (group C = 37). The patients' vital signs were monitored upon entering the room, and a senior anesthesiologist performed the radial artery puncture and catheterization for both groups. The radial artery puncture catheterization was guided by ultrasound in both groups, Prior to the puncture, patients in group P were pre-connected to the pressure sensor. After zeroing and exhausting, the radial artery puncture catheter was performed under ultrasound guidance. with group C undergoing direct ultrasound-guided puncture catheterization. The success rate of first puncture catheterization, puncture time, puncture times, and puncture failure rate were recorded.Result The success rate of radial artery catheterization on the first attempt was significantly higher in group P compared to group C (P < 0.05). Furthermore, group P demonstrated a decrease in both arterial punctures and VAS pain scores. (P < 0.05).Conclusion Pre-connecting a pressure sensor when performing radial artery puncture and catheterization in patients with gastrointestinal tumors can enhance the success rate of radial artery puncture and catheterization under ultrasound guidance.