Table 1.

Search strategy

Search strategy for PUBMED (38)
#1. ((((((((((((((((((((regional anaesthesia) OR (Conduction Anesthesia)) OR (Anesthesia, Regional)) OR (Regional Anesthesia)) OR (nerve block)) OR (Block, Nerve)) OR (Blocks, Nerve)) OR (Nerve Blocks)) OR (Nerve Blockade)) OR (Blockade, Nerve)) OR (Blockades, Nerve)) OR (Nerve Blockades)) OR (Chemical Neurolysis)) OR (Chemical Neurolyses)) OR (Neurolyses, Chemical)) OR (Neurolysis, Chemical)) OR (Chemodenervation)) OR (Chemodenervations)) OR (peripheral block))
#2. (((((((((((Dexamethasone) OR (Methylfluorprednisolone)) OR (Hexadecadrol)) OR (Decameth)) OR (Decaspray)) OR (Dexasone)) OR (Hexadrol)) OR (Oradexon)) OR (Glucocorticoid)) OR (cortison)) OR (corticosteroid)))
#3. ((((((((Medetomidine) OR (Levomedetomidine)) OR (Medetomidine Hydrochloride)) OR (Hydrochloride, Medetomidine)) OR (Dexmedetomidine)) OR (Precedex)) OR (Dexmedetomidine Hydrochloride)) OR (Hydrochloride, Dexmedetomidine))
#4. #1 AND #2 AND #3
Search strategy for The Cochrane Library (10)
#1 MeSH descriptor: [Nerve Block] explode all trees
#2 (“Block, Nerve” or “Blocks, Nerve” or “Nerve Blocks” or “Nerve Blockade” or “Blockade, Nerve” or” Blockades, Nerve” or “Nerve Blockades” or “Chemical Neurolysis” or “Chemical Neurolyses” or “Neurolyses, Chemical” or “Neurolysis, Chemical”):ti,ab,kw
#3 #1 or #2
#4 MeSH descriptor: [dexamethasone] explode all trees
#5 (Methylfluorprednisolone or Hexadecadrol or Decameth or Decaspray or Dexasone or Dexpak or Maxidex or Millicorten or Oradexon or Decaject or Hexadrol):ti,ab,kw
#6 #4 or #5
#7 MeSH descriptor: [dexmedetomidine] explode all trees
#8 (Levomedetomidine or “Hydrochloride, Medetomidine” or “Medetomidine Hydrochloride” or Medetomidine or Precedex or “Dexmedetomidine Hydrochloride” or “Hydrochloride, Dexmedetomidine”):ti,ab,kw
#9 #7 or #8
#10 #3 and #6 and #9
Search strategy for Web of Science (46)
#1 TS = (regional anaesthesia OR Conduction Anesthesia OR Anesthesia, Regional OR Regional Anesthesia OR nerve block OR Block, Nerve OR Blocks, Nerve OR Nerve Blocks OR Nerve Blockade OR Blockade, Nerve OR Blockades, Nerve OR Nerve Blockades OR Chemical Neurolysis OR Chemical Neurolyses OR Neurolyses, Chemical OR Neurolysis, Chemical OR Chemodenervation OR Chemodenervations OR peripheral block)
#2 TS = (Dexamethasone OR Methylfluorprednisolone OR Hexadecadrol OR Decameth OR Decaspray OR Dexasone OR Hexadrol OR Oradexon OR Glucocorticoid OR cortison OR corticosteroid)
#3 TS = (Medetomidine OR Levomedetomidine OR Medetomidine Hydrochloride OR Hydrochloride, Medetomidine OR Dexmedetomidine OR Precedex OR Dexmedetomidine Hydrochloride OR Hydrochloride, Dexmedetomidine)
#4 #1 and #2 and #3
Search strategy for EMBASE (114)
1. (‘dexmedetomidine’/exp OR ‘precedex’:ab,ti OR ‘dexmedetomidine hydrochloride’:ab,ti OR ‘hydrochloride, dexmedetomidine’:ab,ti OR ‘medetomidine’:ab,ti OR ‘levomedetomidine’:ab,ti OR ‘medetomidine hydrochloride’:ab,ti OR ‘hydrochloride, medetomidine’:ab,ti)
2. (‘dexamethasone’/exp OR ‘methylfluorprednisolone’:ab,ti OR ‘hexadecadrol’:ab,ti OR ‘decameth’:ab,ti OR ‘decaspray’:ab,ti OR ‘dexasone’:ab,ti OR ‘dexpak’:ab,ti OR ‘oradexon’:ab,ti OR ‘decaject’:ab,ti OR ‘hexadrol’:ab,ti OR ‘glucocorticoids’:ab,ti OR ‘glucocorticoid’:ab,ti OR‘ cortison’:ab,ti OR ‘corticosteroids’:ab,ti OR ‘corticoids’:ab,ti)
3. (‘nerve block’/exp OR ‘block, nerve’:ab,ti OR ‘blocks, nerve’:ab,ti OR ‘nerve blocks’:ab,ti OR ‘nerve blockade’:ab,ti OR ‘blockade, nerve’:ab,ti OR ‘blockades, nerve’:ab,ti OR ‘nerve blockades’:ab,ti OR ‘chemical neurolysis’:ab,ti OR ‘chemical neurolyses’:ab,ti OR ‘anesthesia, regional’:ab,ti OR ‘peripheral block’:ab,ti OR ‘regional anesthesia’:ab,ti)
4. 1 and 2 and 3