Keywords
Abstract
We describe 2 successful cases of children with single ventricle physiology (SVP) who underwent dental rehabilitation under general anaesthesia, a scenario that carries significant challenges. Both patients received intranasal dexmedetomidine as premedication, which provided effective anxiolysis, facilitated intravenous access, and contributed to perioperative haemodynamic stability. One patient was maintained on sevoflurane, while the other received total intravenous anaesthesia with propofol and remifentanil. In both cases, deep extubation was performed safely, aided by dexmedetomidine’s sedative and sympatholytic properties and careful titration of anaesthetic depth. These cases highlight important anaesthetic considerations in SVP, including the role of dexmedetomidine as premedication, careful titration of anaesthetic agents to achieve haemodynamic goals, particularly in reducing pulmonary vascular resistance, the potential to omit muscle relaxants, goal-directed fluid therapy, and the importance of smooth extubation.
References
White MC, Peyton JM. Anaesthetic management of children with congenital heart disease for non-cardiac surgery. Contin Educ Anaesth Crit Care Pain. 2012;12(1):17–22. https://doi.org/10.1093/bjaceaccp/mkr049
Nasr VG, Markham LW, Clay M, et al. Perioperative Considerations for Pediatric Patients With Congenital Heart Disease Presenting for Noncardiac Procedures: A Scientific Statement From the American Heart Association. Circ Cardiovasc Qual Outcomes. 2023;16(1):e000113. https://doi.org/10.1161/HCQ.0000000000000113
Gropper MA, Eriksson LI, Fleisher LA, et al. Miller’s Anesthesia. 9th ed. Philadelphia: Elsevier; 2020.
Mason KP, Lerman J. Review article: Dexmedetomidine in children: current knowledge and future applications. Anesth Analg. 2011;113(5):1129-1142. https://doi.org/10.1213/ANE.0b013e31822b8629
Poonai N, Spohn J, Vandermeer B, et al. Intranasal Dexmedetomidine for Procedural Distress in Children: A Systematic Review. Pediatrics. 2020;145(1):e20191623. https://doi.org/10.1542/peds.2019-1623
Heikal S, Stuart G. Anxiolytic premedication for children. BJA Educ. 2020;20(7):220-225. https://doi.org/10.1016/j.bjae.2020.02.006
McCormack JG. Total intravenous anaesthesia in children. Curr Anaesth Crit Care. 2008;19(5–6):309–14. https://doi.org/10.1016/j.cacc.2008.09.005
Klemola UM, Hiller A. Tracheal intubation after induction with propofol–remifentanil or propofol–rocuronium in children. Can J Anaesth. 2000;47(9):854–9. https://doi.org/10.1007/BF03019664
Blair JM, Hill DA, Wilson CM, Fee JP. Assessment of tracheal intubation in children after induction with propofol and different doses of remifentanil. Anaesthesia. 2004;59(1):27-33. https://doi.org/10.1111/j.1365-2044.2004.03524.x
Rosen D, Gamble J, Matava C; Canadian Pediatric Anesthesia Society Fasting Guidelines Working Group. Canadian Pediatric Anesthesia Society statement on clear fluid fasting for elective pediatric anesthesia. Can J Anaesth. 2019;66(8):991-992. https://doi.org/10.1007/s12630-019-01382-z
Wilson W, Taubert KA, Gewitz M, et al. Prevention of infective endocarditis: guidelines from the American Heart Association. Circulation. 2007;116(15):1736–54. https://doi.org/10.1161/CIRCULATIONAHA.106.183095
Egbuta C, Evans F. Extubation of children in the operating theatre. BJA Educ. 2022;22(2):75-81. https://doi.org/10.1016/j.bjae.2021.10.003
Cravero JP, Roback MG, Stack AM, et al. Pediatric procedural sedation: pharmacologic agents. UpToDate. Waltham, MA: UpToDate Inc. Updated February 20, 2025. Accessed October 29, 2025. Available from: https://www.uptodate.com.
McMorrow SP, Abramo TJ. Dexmedetomidine sedation: uses in pediatric procedural sedation outside the operating room. Pediatr Emerg Care. 2012;28(3):292-296. https://doi.org/10.1097/PEC.0b013e3182495e1b

