• Hui Xu, Xiaoqiu Zhu, Jin Li, Yiyi Yao, Mingyan Guo, Taihui Yu, Xilin Xiong, Zhiquan Huang, Liping Miao, and Daowei Lin.
• Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
• Acta Anaesthesiol Scand. 2020 Feb 1; 64 (2): 188-192.

BackgroundMany formulas based on the patient's height, weight and/or age exist to determine central venous catheter (CVC) depth in children. However, this information is unavailable in some emergency conditions. Therefore, direct methods should be developed to guide catheter position in children.MethodsEighty patients aged 1-10 y were enrolled from July 2015 to August 2016 and seventy-five were completed; fifty were male, and twenty-five were female. The exclusion criteria were inability to identify the sternal angle or failure to use the right internal jugular vein approach. The catheter was inserted using the right internal jugular vein approach, the distance from the skin puncture point to the midpoint of the sternal angle plane was measured, and the catheter tip was positioned to this distance minus 1 cm. Chest radiography were performed for those children after catheter insertion. The relative position between the catheter tip and carina was confirmed and the longitudinal distance from the catheter tip to the carina was calculated on radiographic images, and related complications were recorded.ResultsAll catheter tips were above the carina, and the average distance from the catheter tip to the carina was 9.8 mm. No patients experienced serious complications.ConclusionThe sternal angle is a useful and reliable anatomic landmark for guiding CVC position in children. Using this landmark, the catheter can be quickly and conveniently placed at a safety position in right internal jugular vein, especially in some emergency conditions.© 2019 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

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