• Genevieve E Staudt, Susan S Eagle, Alexander K Hughes, and Brian S Donahue.
• Division of Pediatric Cardiac Anesthesiology, Vanderbilt University Medical Center, Nashville, TN. Electronic address: genevieve.e.staudt@vumc.org.
• J. Cardiothorac. Vasc. Anesth. 2019 Jul 1; 33 (7): 1926-1929.

ObjectiveTo evaluate the effect of dynamic ultrasound (US) on the need for surgical intervention to achieve successful arterial cannulation in the pediatric cardiac surgery population.DesignRetrospective, observational study.SettingSingle, academic, pediatric hospital in the United States.ParticipantsThe study comprised 3,569 consecutive patients who had an arterial catheter placed in the operating room before undergoing congenital heart surgery between January 2004 and September 2016.InterventionsDynamic US was used in 2,064 cases (57.83%) to obtain arterial access. Arterial cannulation by palpation was performed in the remaining 37.8% of cases. Surgical cutdown for arterial access was required in 192 cases after failed cannulation attempts by the anesthesia team.Measurements And Main ResultsUse of US was associated with an overall decrease in the need for surgical access from 10.43% to 1.70% (p < 0.0001). In patients younger than 30 days, US decreased the rate of surgical access, from 19.62% to 2.65% (p < 0.0001). This significant decrease also was observed in patients 1 to 6 months old (13.93% v 3.73%; p < 0.0001), 7 to 12 months old (7.34% v 0.00%, p < 0.0001), and older than 2 years (1.12% v 0%; p = 0.0083). For children between 13 and 24 months old, there was no statistically significant benefit to using US for avoiding surgical access (3.33% v 0.79%; p = 0.1411). Throughout all age groups, use of US was associated with a significant improvement in optimal arterial line location, defined as placement in an upper extremity (73.75% v 91.13%; p < 0.0001).ConclusionsDynamic US resulted in a significant reduction in surgical intervention to achieve arterial cannulation in children presenting for cardiac surgery.Copyright © 2018 Elsevier Inc. All rights reserved.

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