| 5-HT3 | 5-hydroxytryptamine type 3 |
| AAV | adeno-associated virus |
| ABR | auditory brainstem response |
| ACEMg | vitamins A, C, E, and magnesium |
| AE | adverse event |
| BLB | blood–labyrinth barrier |
| CI | cochlear implant |
| CRISPR-Cas9 | clustered regularly interspaced short palindromic repeats and CRISPR-associated protein 9 |
| CSF | cerebrospinal fluid |
| DFNB9 | autosomal recessive deafness 9 |
| FDA | Food and Drug Administration |
| GPx | glutathione peroxidase |
| GSI | gamma-secretase inhibitor |
| HBOT | hyperbaric oxygen therapy |
| HDVC | high-dose vitamin C |
| HES | hydroxyethyl starch |
| IC | intracochlear |
| IGF-1 | insulin-like growth factor 1 |
| IRB | Institutional Review Board |
| ISSNHL | idiopathic sudden sensorineural hearing loss |
| IT | intratympanic |
| ITS | intratympanic steroids |
| IV | intravenous |
| JNK | c-Jun N-terminal kinase |
| LDL | low-density lipoprotein |
| LDP | Liuwei Dihuang Pill |
| mTOR | mammalian target of rapamycin |
| NAC | N-acetylcysteine |
| NCE | new chemical entity |
| OSF | Open Science Framework |
| OTOF | otoferlin gene |
| PGE1 | prostaglandin E1 |
| PI3K/Akt | phosphoinositide 3-kinase/protein kinase B |
| PRISMA-ScR | Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews |
| PRP | platelet-rich plasma |
| PTA | pure-tone audiometry |
| Q-TER | water-soluble coenzyme Q10 formulation |
| RA | Radix Astragali |
| RCT | randomized controlled trial |
| ROS | reactive oxygen species |
| SNHL | sensorineural hearing loss |
| SSNHL | sudden sensorineural hearing loss |
| STS | sodium thiosulfate |
| TTS | temporary threshold shift |
| WHO | World Health Organization |