Abbreviations

COX-2	Cyclo-oxygenase-2
CSE	Combined spinal and epidural
ESP	Erector spinae plane
GA	General anaesthesia
IM	Intramuscular
IT	Intrathecal
IV	Intravenous
LoE	Level of evidence
NA	Not Applicable
NRS	Numerical rating scale
NS	Not significant/ no significant difference
NSAID	Nonsteroidal anti-inflammatory drug
PACU	Post-anaesthesia care unit
PCA	Patient-controlled analgesia
PCEA	Patient-controlled epidural analgesia
PCIA	Patient-controlled intravenous analgesia
POD	Postoperative day
PONV	Postoperative nausea and vomiting
QL	Quadratus lumborum
RCT	Randomised controlled trial
SA	Spinal anaesthesia
TAP	Transversus abdominis plane
TENS	Transcutaneous electrical nerve stimulation
US	Ultrasound
VAS	Visual analogue scale
VRS	Verbal rating scale

2nd World Day of Regional Anaesthesia & Pain Medicine