[Application of ultrasonic surface location for internal jugular vein catheterization via central approach].

Objective: To explore the clinical value of ultrasonic surface localization in internal jugular vein catheterization.

Methods: Totally 150 patients with American Society of Anesthesiologists physical status I -III who were planning to receive elective surgeries were randomized into anatomical landmark group, ultrasonic surface positioning group, and ultrasound-guided group using computed random table, with 50 cases in each group. The right internal jugular vein catheterization was performed after tracheal intubation.