PubMed	EMBASE (Ovid)	CINAHL (EBSCO)
#1 "HEARING LOSS, SUDDEN" [Mesh] #2 "HEARING LOSS, SENSORINEURAL" [Mesh] #3 sudden* [tiab] #4 #2 AND #3 #5 sshl [tiab] OR snhl [tiab] OR ishl [tiab] OR isshl [tiab] OR issnhl [tiab] OR ssnhl [tiab] OR (sudden [tiab] AND hearing [tiab]) OR (sudden [tiab] AND deaf* [tiab]) #6 #1 OR #4 OR #5 #7 "STEROIDS" [Mesh] #8 "ANTI‐INFLAMMATORY AGENTS" [Mesh] #9 "ANTI‐INFLAMMATORY AGENTS, NON‐STEROIDAL" [Mesh] #10 #8 NOT #9 #11 "GLUCOCORTICOIDS" [Mesh] #12 "Hydroxycorticosteroids"[Mesh] #13 steroid* [tiab] OR corticosteroid* [tiab] OR glucocorticoid* [tiab] OR corticoid* #14 beclomethason* [tiab] OR beclamet [tiab] OR beclocort [tiab] OR beclometasone [tiab] OR becotide [tiab] OR budesonide [tiab] OR betamethason* [tiab] OR betametasone [tiab] OR betadexamethasone [tiab] OR flubenisolone [tiab] OR hydrocortison* [tiab] OR cortisol [tiab] OR celesto* [tiab] OR cortisone [tiab] #15 dexamethason* [tiab] OR dexamethason* [tiab] OR hexadecadrol [tiab] OR decadron [tiab] OR dexasone [tiab] OR hexadrol [tiab] OR horacort [tiab] OR pulmicort [tiab] OR rhinocort [tiab] OR methylfluorprednisolone [tiab] OR methylprednisolone [tiab] OR prednisolone [tiab] OR prednisone [tiab] OR flunisolid* [tiab] OR nasalide [tiab] OR millicorten [tiab] OR [tiab] OR adexon [tiab] #16 fluticason* [tiab] OR flonase [tiab] OR flounce [tiab] OR mometason* [tiab] OR nasonex [tiab] OR fludrocortisone [tiab] OR triamclinolon* [tiab] OR nasacort [tiab] OR tri next nasal [tiab] OR aristocort [tiab] OR volon [tiab] #17 #7 OR #10 OR #11 OR #12 OR #13 OR #14 OR #15 OR #16 #18 #6 AND #17	1 Sudden Deafness/ 2 Perception Deafness/ 3 sudden*.tw. 4 3 and 2 5 (sshl or snhl or ishl or isshl or issnhl or ssnhl or (sudden* and hearing) or (sudden* and deaf*)).tw. 6 4 or 1 or 5 7 exp Steroid/ 8 exp Antiinflammatory Agent/ 9 exp Nonsteroid Antiinflammatory Agent/ 10 8 not 9 11 exp Steroid Hormone/ 12 (steroid* or corticosteroid* or glucocorticoid* or corticoid*).tw. 13 (beclomethason* or beclamet or beclocort or beclometasone or becotide or budesonide or betamethason* or betametasone or betadexamethasone or flubenisolone or hydrocortison* or cortisol or celesto* or cortisone).tw. 14 (dexamethason* or dexamethason* or hexadecadrol or decadron or dexasone or hexadrol or horacort or pulmicort or rhinocort or methylfluorprednisolone or methylprednisolone or prednisolone or prednisone or flunisolid* or nasalide or millicorten or adexon).tw. 15 (fluticason* or flonase or flounce or mometason* or nasonex or fludrocortisone or triamclinolon* or nasacort or tri next nasal or aristocort or volon).tw. 16 11 or 7 or 13 or 10 or 12 or 15 or 14 17 6 and 16	S1 (MH "Hearing Loss, Sensorineural") S2 TX hearing OR deaf* S3 TX sudden* S4 S1 or S2 S5 S3 and S4 S6 TX sshl OR snhl OR ishl OR isshl OR issnhl OR ssnhl S7 S5 or S6 S8 (MH "Steroids") or (MH "Antiinflammatory Agents, Steroidal") S9 (MH "Antiinflammatory Agents, Non‐Steroidal") S10 s8 NOT s9 S11 TX steroid* or corticosteroid* or glucocorticoid* or corticoid* S12 TX beclomethason* or beclamet or beclocort or beclometasone or becotide or budesonide or betamethason* or betametasone or betadexamethasone or flubenisolone or hydrocortison* or cortisol or celesto* or cortisone S13 TX dexamethason* or dexamethason* or hexadecadrol or decadron or dexasone or hexadrol or horacort or pulmicort or rhinocort or methylfluorprednisolone or methylprednisolone or prednisolone or prednisone or flunisolid* or nasalide or millicorten or adexon S14 TX fluticason* or flonase or flounce or mometason* or nasonex or fludrocortisone or triamclinolon* or nasacort or tri next nasal or aristocort or volon S15 S10 or S11 or S12 or S13 or S14 S16 S7 and S15
Web of Science (Web of Knowledge)	CENTRAL	CAB Abstracts (Ovid)
#1 TS=(sshl or snhl or ishl or isshl or issnhl or ssnhl or (sudden* and hearing) or (sudden* and deaf*)) #2 TS=(steroid* or corticosteroid* or glucocorticoid* or corticoid*) #3 TS=(beclomethason* or beclamet or beclocort or beclometasone or becotide or budesonide or betamethason* or betametasone or betadexamethasone or flubenisolone or hydrocortison* or cortisol or celesto* or cortisone) #4 TS=(dexamethason* or dexamethason* or hexadecadrol or decadron or dexasone or hexadrol or horacort or pulmicort or rhinocort or methylfluorprednisolone or methylprednisolone or prednisolone or prednisone or flunisolid* or nasalide or millicorten or adexon) #5 TS=(fluticason* or flonase or flounce or mometason* or nasonex or fludrocortisone or triamclinolon* or nasacort or tri next nasal or aristocort or volon) #6 #5 OR #4 OR #3 OR #2 #7 #6 AND #1	#1 MeSH descriptor HEARING LOSS, SUDDEN explode all trees #2 MeSH descriptor HEARING LOSS, SENSORINEURAL explode all trees #3 sudden* #4 #2 AND #3 #5 sshl OR snhl OR ishl OR isshl OR issnhl OR ssnhl OR (sudden* NEAR hearing) OR (sudden* NEAR deaf*) #6 #1 OR #4 OR #5 #7 MeSH descriptor STEROIDS explode all trees #8 MeSH descriptor ANTI‐INFLAMMATORY AGENTS explode all trees #9 MeSH descriptor ANTI‐INFLAMMATORY AGENTS, NON‐STEROIDAL explode all trees #10 #8 NOT #9 #11 MeSH descriptor GLUCOCORTICOIDS explode all trees #12 MeSH descriptor Hydroxycorticosteroids explode all trees #13 steroid* OR corticosteroid* OR glucocorticoid* OR corticoid* #14 beclomethason* OR beclamet OR beclocort OR beclometasone OR becotide OR budesonide OR betamethason* OR betametasone OR betadexamethasone OR flubenisolone OR hydrocortison* OR cortisol OR celesto* OR cortisone #15 dexamethason* OR dexamethason* OR hexadecadrol OR decadron OR dexasone OR hexadrol OR horacort OR pulmicort OR rhinocort OR methylfluorprednisolone OR methylprednisolone OR prednisolone OR prednisone OR flunisolid* OR nasalide OR millicorten OR adexon #16 fluticason* OR flonase OR flounce OR mometason* OR nasonex OR fludrocortisone OR triamclinolon* OR nasacort OR tri NEXT nasal OR aristocort OR volon #17 #7 OR #10 OR #11 OR #12 OR #13 OR #14 OR #15 OR #16 #18 #6 AND #18	1 (sshl or snhl or ishl or isshl or issnhl or ssnhl or (sudden and hearing) or (sudden and deaf*)).tw. 2 exp Antiinflammatory Agent/ 3 exp Steroid Hormone/ 4 (steroid* or corticosteroid* or glucocorticoid* or corticoid*).tw. 5 (beclomethason* or beclamet or beclocort or beclometasone or becotide or budesonide or betamethason* or betametasone or betadexamethasone or flubenisolone or hydrocortison* or cortisol or celesto* or cortisone).tw. 6 (dexamethason* or dexamethason* or hexadecadrol or decadron or dexasone or hexadrol or horacort or pulmicort or rhinocort or methylfluorprednisolone or methylprednisolone or prednisolone or prednisone or flunisolid* or nasalide or millicorten or adexon).tw. 7 (fluticason* or flonase or flounce or mometason* or nasonex or fludrocortisone or triamclinolon* or nasacort or tri next nasal or aristocort or volon).tw. 8 2 OR 3 OR 4 OR 5 OR 6 OR 7 9 1 AND 8