Croy I, Nordin S, Hummel T (2014) Olfactory disorders and quality of life–an updated review. Chem Senses 39:185–194. https://doi.org/10.1093/chemse/bjt072

Article  PubMed  Google Scholar 

Hummel T, Whitcroft KL, Andrews P, Altundag A, Cinghi C, Costanzo RM, Damm M, Frasnelli J, Gudziol H, Gupta N, Haehne A, Holbrook E, Hong SC, Hornung D, Hüttenbrink KB, Kamel R, Kobayashi M, Konstantinidis I, Landis BN, Leopold DA, Macchi A, Miwa T, Moesges R, Mullol J, Mueller CA, Ottaviano G, Passali GC, Philpott C, Pinto JM, Ramakrishnan VJ, Rombaux P, Roth Y, Schlosser RA, Shu B, Soler G, Stjärne P, Stuck BA, Vodicka J, Welge-Luessen A (2017) Position paper on olfactory dysfunction. Rhinol Suppl 54:1–30. https://doi.org/10.4193/Rhino16.248

Article  CAS  PubMed  Google Scholar 

Whitcroft KL, Altundag A, Balungwe P, Boscolo-Rizzo P, Douglas R, Enecilla MLB, Fjaeldstad AW, Fornazieri MA, Frasnelli J, Gane S, Gudziol H, Gupta N, Haehner A, Hernandez AK, Holbrook EH, Hopkins C, Hsieh JW, Huart C, Husain S, Kamel R, Kim JK, Kobayashi M, Konstantinidis I, Landis BN, Lechner M, Macchi A, Mazal PP, Miri I, Miwa T, Mori E, Mullol J, Mueller CA, Ottaviano G, Patel ZM, Philpott C, Pinto JM, Ramakrishnan VR, Roth Y, Schlosser RJ, Stjärne P, Van Gerven L, Vodicka J, Welge-Luessen A, Wormald PJ, Hummel T (2023) Position paper on olfactory dysfunction. Rhinology. https://doi.org/10.4193/Rhin22.483

Article  PubMed  Google Scholar 

Kim DH, Kim SW, Hwang SH, Kim BG, Kang JM, Cho JH, Park YJ, Kim SW (2017) Prognosis of olfactory dysfunction according to etiology and timing of treatment. Otolaryngol Head Neck Surg 156:371–377. https://doi.org/10.1177/0194599816679952

Article  PubMed  Google Scholar 

Cavazzana A, Larsson M, Münch M, Hähner A, Hummel T (2018) Postinfectious olfactory loss: a retrospective study on 791 patients. Laryngoscope 128:10–15. https://doi.org/10.1002/lary.26606

Article  PubMed  Google Scholar 

Sundman EA, Cole BJ, Fortier LA (2011) Growth factor and catabolic cytokine concentrations are influenced by the cellular composition of platelet-rich plasma. Am J Sports Med 39:2135–2140. https://doi.org/10.1177/0363546511417792

Article  PubMed  Google Scholar 

Anjayani S, Wirohadidjojo YW, Adam AM, Suwandi D, Seweng A, Amiruddin MD (2014) Sensory improvement of leprosy peripheral neuropathy in patients treated with perineural injection of platelet-rich plasma. Int J Dermatol 53:109–113. https://doi.org/10.1111/ijd.12162

Article  CAS  PubMed  Google Scholar 

Kim DH, Lee MH, Lee J, Song EA, Kim SW, Kim SW (2021) Platelet-rich plasma injection in patients with atrophic rhinitis. ORL J Otorhinolaryngol Relat Spec 83:104–111. https://doi.org/10.1159/000513099

Article  CAS  PubMed  Google Scholar 

Raeissadat SA, Karimzadeh A, Hashemi M, Bagherzadeh L (2018) Safety and efficacy of platelet-rich plasma in treatment of carpal tunnel syndrome; a randomized controlled trial. BMC Musculoskelet Disord 19:49. https://doi.org/10.1186/s12891-018-1963-4

Article  CAS  PubMed  PubMed Central  Google Scholar 

Farrag TY, Lehar M, Verhaegen P, Carson KA, Byrne PJ (2007) Effect of platelet rich plasma and fibrin sealant on facial nerve regeneration in a rat model. Laryngoscope 117:157–165. https://doi.org/10.1097/01.mlg.0000249726.98801.77

Article  PubMed  Google Scholar 

Ikumi A, Hara Y, Yoshioka T, Kanamori A, Yamazaki M (2018) Effect of local administration of platelet-rich plasma (PRP) on peripheral nerve regeneration: an experimental study in the rabbit model. Microsurgery 38:300–309. https://doi.org/10.1002/micr.30263

Article  PubMed  Google Scholar 

Sariguney Y, Yavuzer R, Elmas C, Yenicesu I, Bolay H, Atabay K (2008) Effect of platelet-rich plasma on peripheral nerve regeneration. J Reconstr Microsurg 24:159–167. https://doi.org/10.1055/s-2008-1076752

Article  PubMed  Google Scholar 

Zheng C, Zhu Q, Liu X, Huang X, He C, Jiang L, Quan D, Zhou X, Zhu Z (2016) Effect of platelet-rich plasma (PRP) concentration on proliferation, neurotrophic function and migration of Schwann cells in vitro. J Tissue Eng Regen Med 10:428–436. https://doi.org/10.1002/term.1756

Article  CAS  PubMed  Google Scholar 

Yasak AG, Yigit O, Araz Server E, Durna Dastan S, Gul M (2018) The effectiveness of platelet-rich plasma in an anosmia-induced mice model. Laryngoscope 128:E157-e162. https://doi.org/10.1002/lary.27029

Article  PubMed  Google Scholar 

Page MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, Shamseer L, Tetzlaff JM, Akl EA, Brennan SE, Chou R, Glanville J, Grimshaw JM, Hróbjartsson A, Lalu MM, Li T, Loder EW, Mayo-Wilson E, McDonald S, McGuinness LA, Stewart LA, Thomas J, Tricco AC, Welch VA, Whiting P, Moher D (2021) The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ 372:n71. https://doi.org/10.1136/bmj.n71

Article  PubMed  PubMed Central  Google Scholar 

Hwang SH, Kim SW, Basurrah MA, Kim DH (2023) Efficacy of steroid-impregnated spacers after endoscopic sinus surgery in chronic rhinosinusitis: a systematic review and meta-analysis. Clin Exp Otorhinolaryngol 16:148–158. https://doi.org/10.21053/ceo.2022.01718

Article  PubMed  PubMed Central  Google Scholar 

Kim DH, Basurrah MA, Kim SW, Kim SW (2024) Surgical and regenerative treatment options for empty nose syndrome: a systematic review. Clin Exp Otorhinolaryngol. https://doi.org/10.21053/ceo.2023.00038

Article  PubMed  PubMed Central  Google Scholar 

Hwang SH, Shin H, Stybayeva G, Kim DH (2024) Perinatal risk factors for asthma and allergic rhinitis in children and adolescents. Clin Exp Otorhinolaryngol 17:168–176. https://doi.org/10.21053/ceo.2024.00024

Article  PubMed  PubMed Central  Google Scholar 

Kim DH, Kim SW, Basurrah MA, Hwang SH (2022) Clinical and laboratory features of various criteria of eosinophilic chronic rhinosinusitis: a systematic review and meta-analysis. Clin Exp Otorhinolaryngol 15:230–246. https://doi.org/10.21053/ceo.2022.00052

Article  CAS  PubMed  PubMed Central  Google Scholar 

Mavrogeni P, Kanakopoulos A, Maihoub S, Krasznai M, Szirmai A (2017) Anosmia treatment by platelet rich plasma injection. Int Tinnitus J 20:102–105. https://doi.org/10.5935/0946-5448.20160019

Article  PubMed  Google Scholar 

Yan CH, Mundy DC, Patel ZM (2020) The use of platelet-rich plasma in treatment of olfactory dysfunction: a pilot study. Laryngoscope Investig Otolaryngol 5:187–193. https://doi.org/10.1002/lio2.357

Article  PubMed  PubMed Central  Google Scholar 

Aboelmagd E, Mohamed E, Abdelmegeed E, Eltahan A (2021) Platelet rich plasma in management of anosmia. Egypt J Neck Surg Otorhinolaryngol. https://doi.org/10.21608/ejnso.2021.149894

Article  Google Scholar 

Steffens Y, Le Bon SD, Lechien J, Prunier L, Rodriguez A, Saussez S, Horoi M (2022) Effectiveness and safety of PRP on persistent olfactory dysfunction related to COVID-19. Eur Arch Otorhinolaryngol 279:5951–5953. https://doi.org/10.1007/s00405-022-07560-y

Article  PubMed  PubMed Central  Google Scholar 

Yan CH, Jang SS, Lin HC, Ma Y, Khanwalkar AR, Thai A, Patel ZM (2023) Use of platelet-rich plasma for COVID-19-related olfactory loss: a randomized controlled trial. Int Forum Allergy Rhinol 13:989–997. https://doi.org/10.1002/alr.23116

Article  PubMed  Google Scholar 

Abo El Naga HA, El Zaiat RS, Hamdan AM (2022) The potential therapeutic effect of platelet-rich plasma in the treatment of post-COVID-19 parosmia. Egypt J Otolaryngol 38(1):130. https://doi.org/10.1186/s43163-022-00320-z. (Epub 2022 Oct 12)

Article  Google Scholar 

Evman MD (1992) Cetin ZE (2023) Effectiveness of platelet-rich plasma on post-COVID chronic olfactory dysfunction. Rev Assoc Med Bras 69:e20230666. https://doi.org/10.1590/1806-9282.20230666

Article  Google Scholar 

Lechien JR, Le Bon SD, Saussez S (2023) Platelet-rich plasma injection in the olfactory clefts of COVID-19 patients with long-term olfactory dysfunction. Eur Arch Otorhinolaryngol 280:2351–2358. https://doi.org/10.1007/s00405-022-07788-8

Article  PubMed  Google Scholar 

Shawky MA, Hadeya AM (2023) Platelet-rich plasma in management of anosmia (single versus double injections). Indian J Otolaryngol Head Neck Surg 75:1004–1008. https://doi.org/10.1007/s12070-023-03553-3

Article  PubMed  PubMed Central  Google Scholar