Uzumcugi F, et al. - This study was sought to assess the position of the right internal jugular vein with respect to the carotid artery and its transverse diameter free from overlap with the carotid artery applying ultrasound in patients aged 0‐2 years. Between July 2018 and July 2019, researchers conducted a single‐center, prospective, observational study including patients aged 0‐2 years who had undergone elective surgery. They assessed the diameters and anatomical position applying ultrasound. They compared all parameters between groups classified according to postmenstrual ages. The associations of these parameters with weight and postmenstrual ages were examined. A sum of 156 patients, were enrolled in the study. The outcomes suggest the recent data for the high anatomical variability of the right internal jugular vein, indicating the recommendation of the Rapid Central Vein Assessment protocol prior to and ultrasound guidance during catheterization of central veins.