Table 1.

Overview of Ambulatory Surgery ERAS

Phase	Category	Intervention	Mastectomy	MIS hysterectomy	Thyroidectomy	MIS prostatectomy
Preoperative	Optimization of comorbidities	Varies depending on patient’s condition	X	X	X	X
	Patient education	Discussion regarding postoperative course (sore throat, nausea, and pain), ambulation	X	X	X	X
	Hydration	Clear liquids up to 2 h before scheduled arrival	X	X	X	X
	PONV prophylaxis	Aprepitant 40 mg orally, for patients with Apfel score of 4	X	X	X
	Multimodal analgesia	Gabapentin 300 mg orally, immediately before surgery	X	X		X
		Paravertebral, serratus anterior, and PEC1 block	X
Intraoperative	Fluid management	1–3 mL/kg-IBW/h maintenance	X	X	X	Fluid restriction until bladder closure
	Anesthesia	Total intravenous anesthesia	O	O	O	O
	Multimodal analgesia	Acetaminophen 1 g IV at start	X	X	X	X
		Ketorolac 15–30 mg IV	X	X		X
		Local anesthesia infiltration	X	X	X	X
	PONV prophylaxis	Dexamethasone 4 mg IV at start Ondansetron 4 mg IV at end	X	X	X + dexamethasone 8 mg IV	X
	Intubation recovery	4% lidocaine 1–2 mL via endotracheal tube at start of closure			X
Postoperative	Multimodal analgesia	Acetaminophen 1 g orally, every 8 h to maximum 3 g in 24 h	X	X	X	X
		Gabapentin 300 mg orally, at night	X	X		X
		Diclofenac 75 mg orally, at night	X	X		X
	Postextubation	Benzocaine lozenges			X
	Ambulation	Patients encouraged to walk as soon as they felt able	X	X	X	X
	Diet	Patients encouraged to resume full diet as soon as they felt able	X	X	X	X

O indicates optional measures and X indicates standard measures (encouraged but applied at clinicians’ discretion).

Abbreviations: ERAS, enhanced recovery after surgery; IBW, ideal body weight; IV, intravenous; MIS, minimally invasive surgery; PEC1, pectoralis 1; PONV, postoperative nausea.