• Christopher F Tirotta, Richard G Lagueruela, Daria Salyakina, Apeksha Gupta, Frank Alonso, Jason Inoa, Jessica Hughes, Jonathan Pappas, and Redmond Burke.
• Department of Anesthesiology, Nicklaus Children's Hospital, Miami, FL. Electronic address: christirotta@att.net.
• J. Cardiothorac. Vasc. Anesth. 2021 Jun 1; 35 (6): 1715-1721.

ObjectiveThe present study retrospectively ascertained whether liposomal bupivacaine (LB) injected subcutaneously after median sternotomy incisions in pediatric cardiac surgery patients is as efficacious as the ON-Q PainBuster pump (ON-Q) (Avonas Medical, Alpharetta, GA).DesignRetrospective cohort comparison.SettingPediatric hospital.ParticipantsCardiac surgery patients who were treated with LB for elective cardiac surgery.InterventionsPatients received 4 mg/kg of LB admixed with 0.25% bupivacaine and 0.9% normal saline. These patients were compared with an age- and procedure-matched control group of similar size treated with the ON-Q pump (continuous infusion 0.25% bupivacaine via subcutaneous catheter). Total analgesics used and route, other analgesics or sedatives, and pain scores (first 24 hours and cumulative) were tracked for 96 hours after surgery.Measurements And Main ResultsA total of 222 patients were equally divided between the two groups. Overall, the median (interquartile range) age was 6.5 (3.8-12.7) years. Unadjusted analysis suggested that patients in the LB group were administered a significantly higher dose of intravenous acetaminophen (77.4 v 60.0 mg/kg; p < 0.05). Extubation in the operating room was significantly higher in the LB patients (p < 0.05). Narcotic (morphine) administration was significantly higher in the ON-Q group (100.0% v 95.5%; p < 0.05). Although the median pain score within the first 24 hours was higher in LB patients (27.0 v 17.0; p < 0.05), there was a significantly greater difference observed in the Numeric Rating Scale area under the curve for the ON-Q group.ConclusionsLB is at least as effective as the ON-Q is for providing analgesia after median sternotomy incision in children.Copyright © 2021 Elsevier Inc. All rights reserved.

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