• Jerrold Lerman.
• Oishei Children's Hospital, Dept. of Anesthesiology Jacobs School of Medicine and Biomedical Sciences, Buffalo, New York, USA.
• Curr Opin Anaesthesiol. 2019 Dec 1; 32 (6): 708-713.

Purpose Of ReviewAmbulatory surgery is the standard for the majority of pediatric surgery in 2019 and adenotonsillectomy is the second most common ambulatory surgery in children so it is an apt paradigm. Preparing and managing these children as ambulatory patients requires a thorough understanding of the current literature.Recent FindingsThe criteria for undertaking pediatric adenotonsillectomy on an ambulatory basis, fasting after clear fluids, postoperative nausea and vomiting (PONV), perioperative pain management and discharge criteria comprise the themes addressed in this review.SummaryThree criteria determine suitability of adenotonsillectomy surgery on an ambulatory basis: the child's age, comorbidities and the severity of the obstructive sleep apnea syndrome (OSAS). Diagnosing OSAS in children has proven to be a challenge resulting in alternate, noninvasive techniques, which show promise. Abbreviating the 2 h clear fluid fasting guideline has garnered attention, although the primary issue is that parents do not follow the current clear fluid fasting regimen and until that is resolved, consistent fasting after clear fluids will remain elusive. PONV requires aggressive prophylactic measures that fail in too many children. The importance of unrecognized genetic polymorphisms in PONV despite prophylactic treatment is understated as are the future roles of palonosetron and Neurokinin-1 receptor antagonists that may completely eradicate PONV when combined with dexamethasone. Pain management requires test doses of opioids intraoperatively in children with OSAS and nocturnal desaturation to identify those with reduced opioid dosing thresholds, an uncommon practice as yet. Furthermore, postdischarge nonsteroidal anti-inflammatory agents as well as other pain management strategies should replace oral opioids to prevent respiratory arrests in those who are ultra-rapid CYP2D6 metabolizers. Finally, discharge criteria are evolving and physiological-based criteria should replace time-based, reducing the risk of readmission.

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