Arterial cannulation in pediatric patients is occasionally difficult despite ultrasound guidance. The radial artery is generally recommended, but alternative sites may be needed, and there is no standard alternative. In this regard, a recent study evaluated posterior tibial artery as an alternative arterial cannulation site to the radial artery in pediatric patients. Arterial cannulation is frequently used for continuous blood pressure monitoring and blood sampling in the operating room and intensive care unit.
However, arterial cannulation in pediatric patients is challenging, even for experienced anesthesiologists. Radial artery is recommended a site for arterial cannulation due to its proximity to the skin surface, collateral circulation with the ulnar artery, and low complication rate. However, an alternative arterial site for cannulation is required in cases of unsuccessful…
