are the J-shaped guidewire diameters bigger than internal jugular vein?
AIM: This study investigates whether the diameters of right internal jugular vein (RIJV) are suitable for the use of ‘big radius curved J-tip’ Seldinger wires in pediatric patients. METHODS: One-hundred and thirty-five children, 1 month to 15 years of age, scheduled for pediatric surgery were divided into four subgroups according to their age (0-12 months, 1-2 years, 2-6 years old, and >6 years). Patients in the 0-12 months group were further divided into two groups as 0-6 months and 7-12 months of age to evaluate RIJV characteristics in detail. Following anesthesia induction, depth, diameter, and area of RIJV were measured with ultrasound at the level of cricoid cartilage and sterno-clavicular junction in supine and Trendelenburg position. RESULTS: Infants in the 0-6 months of age group had the least mean diameter of RIJV at both the cricoid cartilage and the sternoclavicular junction level (0.484 +/- 0.132 and 0.499 +/- 0.136 cm). The aforementioned diameter was significantly lower t
