Database and date	Search algorithm
MEDLINE Ovid MEDLINE(R) In‐Process & Other Non‐ Indexed Citations, Ovid MEDLINE(R) Daily and Ovid MEDLINE(R) <1946 to 12.02.2020>	1 exp Hydrocephalus/ 2 hydrocephal*.ti,ab.  3 1 or 2 4 (convention* adj3 (valve* or shunt*)).ti,ab.  5 (traditional* adj3 (valve* or shunt*)).ti,ab.  6 (conservativ* adj3 (valve* or shunt*)).ti,ab.  7 (programm* adj3 (valve* or shunt*)).ti,ab.  8 (standard* adj3 (valve* or shunt*)).ti,ab.  9 (cerebrospinal* adj3 (valve* or shunt*)).ti,ab.  10 (cerebro spinal* adj3 (valve* or shunt*)).ti,ab.  11 (ventriculoperiton* adj3 (valve* or shunt*)).ti,ab.  12 (ventriculo periton* adj3 (valve* or shunt*)).ti,ab. 13 (pressure adj3 (valve* or shunt*)).ti,ab.  14 (shunt* adj4 valve*).ti,ab.  15 (endosc* adj3 ventriculost*).ti,ab.  16 (gravitat* adj3 value*).ti,ab.  17 ventriculost*.ti,ab.  18 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 (11754) 19 exp Cerebrospinal Fluid Shunts/  20 exp Surgical Instruments/  21 exp Equipment Design/  22 19 or 20 or 21  23 18 or 22  24 3 and 23  25 systematic review.mp.  26 systematic review*.ti,ab.  27 meta analys*.ti,ab.  28 meta?nalys*.ti,ab.  29 25 or 26 or 27 or 28  30 24 and 29  31 Randomized Controlled Trial.pt.  32 Controlled Clinical Trial.pt.  33 randomi?ed.ab,ti.  34 placebo.ab,ti.  35 drug therapy.sh.  36 randomly.ab,ti.  37 trial.ab,ti.  38 groups.ab,ti.  39 31 or 32 or 33 or 34 or 35 or 36 or 37 or 38  40 Animals/ not (Humans/ and Animals/)  41 39 not 40  42 24 and 41
The Cochrane Library 14.02.2020	#1 [mh hydrocephalus]  #2 hydrocephal*:ti,ab  #3 #1 or #2  #4 (valve* or shunt*):ti,ab  #5 (ventriculost*):ti,ab  #6 depps  #7 #4 or #5 or #6  #8 MeSH descriptor: [Cerebrospinal Fluid Shunts] explode all trees  #9 MeSH descriptor: [Equipment Design] explode all trees  #10 MeSH descriptor: [Surgical Instruments] explode all trees  #11 #8 or #9 or #10  #12 #7 or #11  #13 #3 and #12  Cochrane Reviews matching "#13 ‐ #3 AND #12" Cochrane Database of Systematic Reviews Issue 2 of 12, February 2020 Cochrane Protocols matching "#13 ‐ #3 AND #12" Cochrane Database of Systematic Reviews Issue 2 of 12, February 2020 Trials matching "#13 ‐ #3 AND #12" Cochrane Central Register of Controlled Trials Issue 2 of 12, February 2020 Editorials matching "#13 ‐ #3 AND #12" Cochrane Database of Systematic Reviews Special collections matching "#13 ‐ #3 AND #12" Clinical Answers matching "#13 ‐ #3 AND #12
Embase Ovid: Embase <1974 to date>	1 exp hydrocephalus/ 2 hydrocephal*.ti,ab. 3 1 or 2 4 (convention* adj3 (valve* or shunt*)).ti,ab. 5 (cerebrospinal* adj3 (valve* or shunt*)).ti,ab. 6 (cerebro spinal* adj3 (valve* or shunt*)).ti,ab. 7 (ventriculoperiton* adj3 (valve* or shunt*)).ti,ab. 8 (ventriculo periton* adj3 (valve* or shunt*)).ti,ab. 9 (conservativ* adj3 (valve* or shunt*)).ti,ab. 10 (traditional* adj3 (valve* or shunt*)).ti,ab. 11 (standard* adj3 (valve* or shunt*)).ti,ab. 12 (programm* adj3 (valve* or shunt*)).ti,ab. 13 (pressure adj3 (valve* or shunt*)).ti,ab. 14 (shunt* adj4 valve*).ti,ab. 15 DEPSS*.ti,ab. 16 (endosc* adj3 ventriculost*).ti,ab. 17 (gravitat* adj3 value*).ti,ab. 18 ventriculost*.ti,ab. 19 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 20 exp cerebrospinal fluid shunting/ 21 exp equipment design/ 22 exp surgical equipment/ 23 20 or 21 or 22 24 19 or 23 25 3 and 24 26 exp "systematic review"/ 27 meta analysis/ 28 systematic review*.ti,ab. 29 meta analys*.ti,ab. 30 meta?nalys*.ti,ab. 31 Cochrane.ti,ab. 32 (MEDLINE and CENTRAL).ti,ab. 33 26 or 27 or 28 or 29 or 30 or 31 or 32 34 25 and 33 35 random*.tw. or placebo*.mp. or double blind*.mp. 36 25 and 35 This strategy was adapted to Elsevier platform. See Differences between protocol and review and line below.
LILACS <1980 to 12.02.2020>	(tw:((mh:(hidrocefalia )) OR (tw:(hidrocefal$ OR hydrocephal$)) )) AND (tw:((tw:((tw:((tw:(convencion$ OR convention$ OR traditional$ OR tradicional$ OR conserv$ OR program$ OR standard$ OR estandar$ OR cerebrospinal$ OR cerebro spinal$ OR cefalorraquid$ OR cefalo raquid$ OR ventriculoperiton$ OR ventriculo periton$ OR presion$ OR pressure$ )) AND (tw:(shunt$ OR valv$ OR deriv$)))) OR (tw:((tw:(shunt$ OR deriv$)) AND (tw:(valv$ )))) OR (tw:((tw:(endosc$)) AND (tw:(ventriculost$)))) OR (tw:((tw:(gravita$)) AND (tw:(value$ OR valor$)))) OR (tw:((tw:(ventriculost$)))))) OR (tw:((mh:(Equipment Design )) OR (mh:(Surgical Instruments )) OR (mh:(Cerebrospinal Fluid Shunts ))))))
ClinicalTrials.gov <Inception to 12.02.2020>	Hydrocephalus OR hydrocephalia
ICTRP <Inception to 12.02.2020>	Hydrocephal*
Embase Elsevier <1974 to 14.02.2020>	#1 'hydrocephalus'/exp  #2 hydrocephal*:ti,ab  #3 #1 OR #2  #4 (convention* NEAR/3 (valve* OR shunt*)):ti,ab  #5 (cerebrospinal* NEAR/3 (valve* OR shunt*)):ti,ab  #6 (cerebro NEXT/1 spinal* NEAR/3 (valve* OR shunt*)):ti,ab  #7 (ventriculoperiton* NEAR/3 (valve* OR shunt*)):ti,ab  #8 (ventriculo NEXT/1 periton* NEAR/3 (valve* OR shunt*)):ti,ab  #9 (conservativ* NEAR/3 (valve* OR shunt*)):ti,ab  #10 (traditional* NEAR/3 (valve* OR shunt*)):ti,ab  #11 (standard* NEAR/3 (valve* OR shunt*)):ti,ab  #12 (programm* NEAR/3 (valve* OR shunt*):ti,ab  #13 (pressure NEAR/3 (valve* OR shunt*)):ti,ab  #14 (shunt* NEAR/4 valve*):ti,ab  #15 DEPSS*:ti,ab  #16 (endosc* NEAR/3 ventriculost*):ti,ab  #17 (gravitat* NEAR/3 value*):ti,ab  #18 ventriculost*:ti,ab  #19 #4 OR #5 OR #6 OR #7 OR #8 OR #9 OR #10 OR #11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 OR #18  #20 ‘cerebrospinal fluid shunting’/exp  #21 ‘equipment design’/exp  #22 ‘surgical equipment’/exp  #23 #20 OR #21 OR #22  #24 #19 OR #23  #25 #3 AND #24  #26 ‘systematic review’/exp  #27 ‘meta analysis’/exp  #28 (systematic NEXT/1 review*):ti,ab  #29 (meta NEXT/1 analys*):ti,ab  #30 metaanalys*:ti,ab OR metanalys*:ti,ab OR 'meta analys*':ti,ab  #31 cochrane:ti,ab  #32 medline:ti,ab AND central:ti,ab  #33 #26 OR #27 OR #28 OR #29 OR #30 OR #31 OR #32  #34 #25 AND #33  #35 random* OR placebo* OR double NEXT/1 blind*  #36 #25 AND #35
Open Grey <1980 to 20.02.2020>	hydrocephal* AND (shunt* OR valve*)