Kim JS, Zee DS. Clinical practice. Benign paroxysmal positional vertigo. N Engl J Med. 2014. https://doi.org/10.1056/nejmcp1309481.

Neuhauser HK. The epidemiology of dizziness and vertigo. In: Handbook of Clinical Neurology. 2016:67. https://doi.org/10.1016/b978-0-444-63437-5.00005-4.

Benecke H, Agus S, Kuessner D, Goodall G, Strupp M. The burden and impact of vertigo: findings from the REVERT patient registry. Front Neurol. 2013;4:136. https://doi.org/10.3389/fneur.2013.00136. PMID:24106487; PMCID:PMC3788351.

von Brevern M, Radtke A, Lezius F, Feldmann M, Ziese T, Lempert T, Neuhauser H. Epidemiology of benign paroxysmal positional vertigo: a population based study. J Neurol Neurosurg Psychiatry. 2007;78(7):710–5. https://doi.org/10.1136/jnnp.2006.100420.

Gold DR, Morris L, Kheradmand A, Schubert MC. Repositioning maneuvers for benign paroxysmal positional vertigo. Curr Treat Options Neurol. 2014;16(8). https://doi.org/10.1007/s11940-014-0307-4.

Ewald JR. Physiologische Untersuchungen ueber das Endorgan des Nervus Octavus. Bergmann; 1892. p. 324.

•• Jeong SS, Simpson KN, Johnson JM, Rizk HG. Assessment of the cost burden of episodic recurrent vestibular vertigo in the US. Arch otolaryngol Head Neck Surg. 2022;148(12). https://doi.org/10.1001/jamaoto.2022.3247 . Although BPPV can be diagnosed and treated at bedside, BPPV continues to have extraneous medical costs related to imaging and vestibular testing. Additional resources are needed to promote more efficient use of healthcare resources.

Lawson J, Bamiou DE, Cohen HS, Newton J. Positional vertigo in a falls service. Age Ageing. 2008;37(5):585–9. https://doi.org/10.1093/ageing/afn151.

Oghalai JS, Manolidis S, Barth JL, Stewart MG, Jenkins HA. Unrecognized benign paroxysmal positional vertigo in elderly patients. Otolaryngol Head Neck Surg. 2000;122(5):630–4. https://doi.org/10.1016/s0194-5998(00)70187-2.

• Se To PL, Singh DKA, Whitney SL. Effects of customized vestibular rehabilitation plus canalith repositioning maneuver on gait and balance in adults with benign paroxysmal positional vertigo: a randomized controlled trial. VES. 2022;32(1):79. https://doi.org/10.3233/ves-190731. Balance and gait interventions combined with canalith repositioning maneuvers may be more beneficial compared to canalith repositioning maneuvers alone for addressing balance dysfunction in individuals with BPPV.

Carrillo Muñoz R, Ballve Moreno JL, Villar Balboa I, et al. Disability perceived by primary care patients with posterior canal benign paroxysmal positional vertigo. BMC Fam Pract. 2019;20(1). https://doi.org/10.1186/s12875-019-1035-3.

Agrawal Y, Ward BK, Minor LB. Vestibular dysfunction: prevalence, impact and need for targeted treatment. J Vestib Res. 2013;23(3):113–7. https://doi.org/10.3233/ves-130498.

Rodrigues D, Ledesma AL, Pires de Oliveira C, Bahmad F. Effect of vestibular exercises associated with repositioning maneuvers in patients with benign paroxysmal positional vertigo: a randomized controlled clinical trial. Otol Neurotol. 2019;40(8):e824–e829. https://doi.org/10.1097/mao.0000000000002324.

Fife TD. Positional dizziness. Continuum (Minneap Minn). Neuro-otology. 2012;185:1060–1085. https://doi.org/10.1212/01.con.0000418376.80099.24.

Ahn SK, Jeon SY, Kim JP. Clinical characteristics and treatment of benign paroxysmal positional vertigo after traumatic brain injury. J Trauma. 2011;70(2):442–6. https://doi.org/10.1097/ta.0b013e3181d0c3d9.

Bashir K, Pathan S, Farook S, Khalid MM, Zayed S. Disconnect between available literature and clinical practice: exploring gaps in the management of t-BPPV in the emergency department. J Emerg Med. 2017;6.

Caruso G, Nuti D. Epidemiological data from 2.270 PPV patients. Audiol Med. 2005;3:7–11. https://doi.org/10.1080/16513860510028310.

von Brevern M, Bertholon P, Brandt T, et al. Benign paroxysmal positional vertigo: diagnostic criteria. J Vestib Res. 2015;25:105–17. https://doi.org/10.3233/VES-150553.

Choi S-Y, Cho JW, Choi J-H, Oh EH and Choi K-D. Effect of the Epley maneuver and Brandt-Daroff exercise on benign paroxysmal positional vertigo involving the posterior semicircular canal cupulolithiasis: a randomized clinical trial. Front Neurol. 2020;11. https://doi.org/10.3389/fneur.2020.603541.

Gupta AK, Sharma KG, Sharma P. Effect of Epley, Semont maneuvers and Brandt-Daroff exercise on quality of life in patients with posterior semicircular canal benign paroxysmal positional vertigo (PSCBPPV). Indian J Otolaryngol Head Neck Surg. 2019;71(1):99–103. https://doi.org/10.1007/s12070-018-1322-7.

Imai T, Uno A, Yamato A, Takimoto Y, Sato G, Matsuda K, Takeda N, Nishiike S, Kawashima K, Iga T, Ueno Y, Ohta Y, Sato T, Kamakura T, Shingai-Higashi K, Mikami S, Kimura N, Nakajima T, Tanaka A and Inohara H. Comparison of the efficacy of the Epley maneuver and repeated Dix–Hallpike tests for eliminating positional nystagmus: a multicenter randomized study. Front Neurol. 2023;14. https://doi.org/10.3389/fneur.2023.1095041.

• Isaradisaikul S, Chowsilpa S, Hanprasertpong C, Rithirangsriroj T. Single cycle versus multiple cycles of canalith repositioning procedure for treatment of posterior canal benign paroxysmal positional vertigo: a randomized controlled trial. Otol Neurotol. 2021;42(1):121–8. https://doi.org/10.1097/mao.0000000000002894. A single cycle of canalith repositioning manuever is as effective as multiple maeuvers with a lower incidence of complication.

Jaffar M, Ghous M, Ayaz M, Khan AA, Akbar A, Haleem F. Effects of half-somersault and Brandt-Daroff exercise on dizziness, fear of fall and quality of life in patients with posterior canal benign paroxysmal positional vertigo: a randomized control trial. J Pak Med Assoc. 2023;73(1):139–142. https://doi.org/10.47391/jpma.3333.

Lee JD, Shim DB, Park HJ, et al. A multicenter randomized double-blind study: comparison of the Epley, Semont, and sham maneuvers for the treatment of posterior canal benign paroxysmal positional vertigo. Audiol Neurotol. 2014;19(5):336–41. https://doi.org/10.1159/000365438.

• Lee HJ, Jeon E, Lee D, Seo J. Therapeutic efficacy of the modified epley maneuver with a pillow under the shoulders. Clin Exp Otorhinolaryngol. 2020;13(4):376–380. https://doi.org/10.21053/ceo.2019.01830. Using a pillow underneath the shoulders during an Epley maneuver may be a way to facilitate a repositioning maneuver if a patient cannot tolerate cervical extension or has anxiety of being within a head-hanging position.

Lee C, Lee C, Wu P, Wang C, Chen H, Shih C. Efficacy of combined canalith-repositioning procedure and supine to prolonged lateral position in treating posterior canal benign paroxysmal positional vertigo. Auris Nasus Larynx. 2021;48(5):834–40. https://doi.org/10.1016/j.anl.2021.01.009.

Lovato A, Marioni G, Monzani D, Rossettini G, Genovese E, de Filippis C. Physical therapy for benign positional vertigo of posterior canal: the role of alternated epley and semont maneuvers. Ear Nose Throat J. 2023;102(2):NP60–NP64. https://doi.org/10.1177/0145561320980183.

Mishra P, Sindhu KLS, Chethana R, Kaushik M. Epleys versus semonts manoeuvre in posterior canal benign paroxysmal positional vertigo. Indian J Otolaryngol Head Neck Surg. 2023. https://doi.org/10.1007/s12070-023-03624-5.

Oh S, Kim J, Choi K, et al. Switch to Semont maneuver is no better than repetition of Epley maneuver in treating refractory BPPV. J Neurol. 2017;264(9):1892–8. https://doi.org/10.1007/s00415-017-8580-2.

Piromchai P, Eamudomkarn N, Srirompotong S, Ratanaanekchai T, Yimtae K. The efficacy of a home treatment program combined with office-based canalith repositioning procedure for benign paroxysmal positional vertigo—a randomized controlled trial. Otol Neurotol. 2019;40(7):951–6. https://doi.org/10.1097/mao.0000000000002310.

Saberi A, Nemati S, Sabnan S, Mollahoseini F, Kazemnejad E. A safe-repositioning maneuver for the management of benign paroxysmal positional vertigo: Gans vs. Epley maneuver; a randomized comparative clinical trial. Eur Arch Otorhinolaryngol. 2017;274(8):2973–2979. https://doi.org/10.1007/s00405-016-4235-7.

Sinsamutpadung C, Kulthaveesup A. Comparison of outcomes of the Epley and Semont maneuvers in posterior canal BPPV: a randomized controlled trial. Laryngoscope Investig Otolaryngol. 2021;6(4):866–71. https://doi.org/10.1002/lio2.619.

Strupp M, Goldschagg N, Vinck A, et al. BPPV: comparison of the SémontPLUS with the sémont maneuver: a prospective randomized trial. Front Neurol. 2021;12. https://doi.org/10.3389/fneur.2021.652573.

Bhattacharyya N, Gubbels SP, Schwartz SR, Edlow JA, El-Kashlan H, Fife T, Holmberg JM, Mahoney K, Hollingsworth DB, Roberts R, Seidman MD, Steiner RW, Do BT, Voelker CC, Waguespack RW, Corrigan MD. Clinical practice guideline: benign paroxysmal positional vertigo (update). Otolaryngol Head Neck Surg. 2017;156:S1–47. https://doi.org/10.1177/0194599816689667.

Mandalà M, Salerni L, Nuti D. Benign positional paroxysmal vertigo treatment: a practical update. Curr Treat Options Neurol. 2019;21(12):66. https://doi.org/10.1007/s11940-019-0606-x.

Power L, Murray K, Szmulewicz DJ. Characteristics of assessment and treatment in benign paroxysmal positional vertigo (BPPV). VES. 2020;30(1):55. https://doi.org/10.3233/ves-190687.

Ping L, Yi-fei Z, Shu-zhi W, Yan-yan Z, Xiao-kai Y. Diagnosis and treatment of the short-arm type posterior semicircular canal BPPV. Braz J Otorhinolaryngol. 2022;88(5):733–9. https://doi.org/10.1016/j.bjorl.2020.10.012.

Vannucchi P, Pecci R, Giannoni B., Posterior semicircular canal benign paroxysmal positional vertigo presenting with torsional downbeating nystagmus: an apogeotropic variant, Int. J. Otolaryngol. 2012. https://doi.org/10.1155/2012/413603.

Helminski JO. Peripheral downbeat positional nystagmus: apogeotropicposterior canal or anterior canal BPPV. J Neurol Phys Ther. 2019;43:S8–13. https://doi.org/10.1097/NPT.0000000000000267.

Kim J, Lee S, Kim H, Kim J. Less talked variants of benign paroxysmal positional vertigo. J Neurol Sci. 2022;442:120440. https://doi.org/10.1016/j.jns.2022.120440.

Hall SF, Ruby RR, McClure JA. The mechanics of benign paroxysmal vertigo. J Otolaryngol. 1970;8(2):151–8.

House MG, Honrubia V. Theoretical models for the mechanisms of bening paroxysmal positional vertigo. Audiolo Nuerootol. 2003;8(2):91–9. https://doi.org/10.1159/000068998.

Argaet EC, Bradshaw AP, Welgampola MS. Benign positional vertigo, its diagnosis, treatment and mimics. Clin Neurophysiol Pract. 2019;4:97–111. https://doi.org/10.1016/j.cnp.2019.03.001.

Schuknecht HF. Cupulolithiasis. Arch Otolaryngol. 1969;90(6):765–78. https://doi.org/10.1001/archotol.1969.00770030767020.

Nuti D, Masini M, Mandala M. Benign paroxysmal positional vertigo and its variants. Handb Clin Neurol. 2016;137:241–56. https://doi.org/10.1016/B978-0-444-63437-5.00018-2.

Cohen HS. Side-lying as an alternative to the Dix-Hallpike test of the posterior canal. Otol Neurotol. 2004;25(2):130–4. https://doi.org/10.1097/00129492-200403000-00008.

Wang W, Yan S, Zhang S, et al. Clinical application of different vertical position tests for posterior canal-benign paroxysmal positional vertigo-cupulolithiasis. Front Neurol. 2022;13. https://doi.org/10.3389/fneur.2022.930542.

•• Scocco DH, Barreiro MA, García IE. Sitting-up vertigo as an expression of posterior semicircular canal heavy cupula and posterior semicircular canal short arm canalolithiasis. J Otol. 2022;17(2):101–106. https://doi.org/10.1016/j.joto.2022.02.001. The short-arm PC-BPPV has recently been described in the literature and can be identified with up-beating torsional nystagmus when returning to sit from the Dix-Hallpike or straight-head hanging maneuver. Correctly identifying the type of BPPV and location of debris within the SCC is critical, so the patient can be treated with the most appropriate maneuver.

Uneri A. Falling sensation in patients who undergo the epley maneuver: a retrospective study. Ear Nose Throat J. 2005;84(2):82–5. https://doi.org/10.1177/014556130508400211.

Moore P, Le T, Blakley B, Beiko J, Meen E. Hemorrhagic stroke after epley maneuver: a case report. J Otolaryngol Head Neck Surg. 2018;47(1):25. https://doi.org/10.1186/s40463-018-0268-9.

Roberts RA, Gans RE, Montaudo RL. Efficacy of a new treatment maneuver for posterior canal benign paroxysmal positional vertigo. J Am Acad Audiol. 2006;17(8):598–604. https://doi.org/10.3766/jaaa.17.8.6.

Brandt T, Daroff RB. Physical therapy for benign paroxysmal positional vertigo. Arch Otolaryngol Head Neck Surg. 1980;106:484–5. https://doi.org/10.1001/archotol.1980.00790320036009.

Amor-Dorado JC, Barreira-Fernández MP, Aran- Gonzalez I, et al. Particle repositioning maneuver versus Brandt-Daroff exercise for treatment of unilateral idiopathic BPPV of the posterior semi- circular canal: a randomized prospective clinical trial with short- and long-term outcome. Otol Neurotol. 2012;33:1401–7. https://doi.org/10.1097/mao.0b013e318268d50a.

Helminski JO, Kotaspouikis D, Kovacs K, et al. Strategies to prevent recurrence of benign paroxysmal positional vertigo. Arch Otolaryngol Head Neck Surg. 2005;131:344–8. https://doi.org/10.1001/archotol.131.4.344.

Oh EH, Lee JH, Kim HJ, Choi SY, Choi KD, Choi JH. Incidence and clinical significance of positional downbeat nystagmus in posterior canal benign paroxysmal positional vertigo. J Clin Neurol. 2019;15:143–148. https://doi.org/10.3988/jcn.2019.15.2.143.

Faldon ME, Bronstein AM. Head accelerations during particle repositioning manoeuvers. Audiol Nuerootol. 2008;13(6):345–56. https://doi.org/10.1159/000136153.

Lee SH, Kim JS. Benign paroxysmal positional vertigo. J Clin Neurol. 2010;6:51–63. https://doi.org/10.3988/jcn.2010.6.2.51.

Soto-varela A, Rossi-izquierdo M, Santos-pérez S. Benign paroxysmal positional vertigo simultaneously affecting several canals: a 46-patient series. Eur Arch Oto-Rhino-Laryngol. 2013;270(3):817–82. https://doi.org/10.1007/s00405-012-2043-2.

McClure JA. Horizontal canal BPPV. J Otolaryngol. 1985;14:30–5.

Baloh RW, Jacobson K, Honrubia V. Horizontal semicircular canal variant of benign positional vertigo. Neurology. 1993;43:2542–9. https://doi.org/10.1212/wnl.43.12.2542.

Lempert T. Horizontal benign positional vertigo. Neurology. 1994;44:2213–4. https://doi.org/10.1212/wnl.44.11.2213-a.

Nuti D, Vannucchi P, Pagnini P. Benign paroxysmal positional vertigo of the horizontal canal: a form of canalolithiasis with variable clinical features. J Vestib Res. 1996;6(3):173–84.

Baloh RW, Yue Q, Jacobson KM, Honrubia V. Persistent direction-changing positional nystagmus: an- other variant of benign positional nystagmus? Neurology. 1995;45:1297–301. https://doi.org/10.1212/wnl.45.7.1297.

Casani A, Giovanni V, Bruno F, Luigi GP. Positional vertigo and ageotropic bidirectional nystagmus. La- ryngoscope. 1997;107:807–13. https://doi.org/10.1097/00005537-199706000-00016.

Fife TD. Recognition and management of horizontal canal benign positional vertigo. Am J Otol. 1998;19:345–51.

Califano L, Vassallo A, Melillo MG, Mazzone S, Salafia F. Direction- fixed paroxysmal nystagmus lateral canal benign paroxysmal position- ing vertigo (BPPV): another form of lateral canalolithiasis. Acta Otorhinolaryngol Ital. 2013;33(4):254–260. http://www.ncbi.nlm.nih.gov/pmc/articles/pmc3773965/.

Pagnini P, Nuti D, Vannucchi P. Benign paroxysmal vertigo of the horizontal canal. ORL J Otorhinolaryngol Relat Spec. 1989;51(3):161–70. https://doi.org/10.1159/000276052.

Chung KW, Park KN, Ko MH, et al. Incidence of horizontal canal benign paroxysmal positional vertigo as a function of the duration of symptoms. Otol Neurotol. 2009;30(2):202–5. https://doi.org/10.1097/mao.0b013e31818f57da.

Martens C, Goplen FK, Aasen T, et al. Dizziness handicap and clinical characteristics of posterior and lateral canal BPPV. Eur Arch Otorhinolaryngol. 2019;276(8):2181–9. https://doi.org/10.1007/s00405-019-05459-9.

Yu J, Gu Y, Meng G, et al. Nystagmus parameters of supine roll test correlates with prognosis after repositioning maneuver in horizontal semicircular canal benign paroxysmal positional vertigo. Front Neurol. 2021;12:790430. https://doi.org/10.3389/fneur.2021.790430.

• Kinne BL, Breuer RE, Fitkin OM, Kelly RL. Interventions for apogeotropic horizontal canal benign paroxysmal positional vertigo: a systematic review. Phys Ther Rev. 2022:1–9. https://doi.org/10.1080/10833196.2022.2163082. Review of recent randomized control trials for treatment maneuvers for apogeotropic horizontal BPPV.

Kinne BL, Harless MG, Lauzon KA, Wamhoff JR. Roll maneuvers versus side-lying maneuvers for geotropic horizontal canal BPPV: a systematic review. Physical therapy reviews. 2021;26(6):439–46. https://doi.org/10.1080/10833196.2021.1978778.ReviewofrecentrandomizedcontroltrialsfortreatmentmaneuversforgeotropichorizontalBPPV.

• Alvarez de Linera-Alperi M, Garaycochea O, Calavia D, Terrasa D, Pérez-Fernández N, Manrique-Huarte R. Apogeotropic horizontal canal benign paroxysmal positional vertigo: Zuma e maia maneuver versus appiani variant of gufoni. Audiol Res. 2022;12(3):337–346. https://doi.org/10.3390/audiolres12030035. The Zuma manever is proposed as an alternate treatment for apogeotropic horizontal canal BPPV and may be more effective for individuals who have a history of previous BPPV episodes.

Han K, Lee J, Shin JE, Kim C. Treatment efficacy of forced prolonged position after cupulolith repositioning maneuver in apogeotropic HSCC BPPV. Ear Nose Throat J. 2022. https://doi.org/10.1177/01455613211038274.

Hwang M, Kim S, Kang K, et al. Canalith repositioning in apogeotropic horizontal canal benign paroxysmal positional vertigo: do we need faster maneuvering? J Neurol Sci. 2015;358(1):183–7. https://doi.org/10.1016/j.jns.2015.08.1534.

Kim HA, Park S, Kim J, et al. Efficacy of mastoid oscillation and the gufoni maneuver for treating apogeotropic horizontal benign positional vertigo: a randomized controlled study. J Neurol. 2017;264(5):848–55. https://doi.org/10.1007/s00415-017-8422-2.

Kong TH, Song MH, Kang JW, Shim DB. Double-blind randomized controlled trial on efficacy of cupulolith repositioning maneuver for treatment of apogeotropic horizontal canal benign paroxysmal positional vertigo. Acta Otolaryngol. 2020;140(6):473–8. https://doi.org/10.1080/00016489.2020.1736339.

Lee J, Lee D, Noh H, Shin JE, Kim C. Immediate and short-term effects of gufoni and appiani liberatory maneuver for treatment of ageotropic horizontal canal benign paroxysmal positional vertigo: a prospective randomized trial. Laryngoscope Investig Otolaryngol. 2021;6(4):832–8. https://doi.org/10.1002/lio2.600.

Li J, Zou S, Tian S. A prospective randomized controlled study of li quick repositioning maneuver for geotropic horizontal canal BPPV. Acta Otolaryngol. 2018;138(9):779–84. https://doi.org/10.1080/00016489.2018.1476778.

• Mandala M, Califano L, Casani AP, et al. Double-blind randomized trial on the efficacy of the forced prolonged position for treatment of lateral canal benign paroxysmal positional vertigo. Laryngoscope. 2021;131:E1296-E1300. https://doi.org/10.1002/lary.28981. Forced-prolonged positioning is highly effective compared to a sham maneuver, and can be recommended for treating HC-BPPV.

Martens C, Goplen FK, Aasen T, Gjestad R, Nordfalk KF, Nordahl SHG. Treatment of horizontal canal BPPV — a randomized sham‐controlled trial comparing two therapeutic maneuvers of different speeds. Laryngoscope Investig Otolaryngol. 2020;5(4). https://doi.org/10.1002/lio2.420.

Vannucchi P, Pecci R. About nystagmus transformation in a case of apogeotropic lateral semicircular canal benign paroxysmal positional vertigo. Int J Otolaryngol. 2011:1–4. https://doi.org/10.1155/2011/687921.

Büki B, Mandalà M, Nuti D. Typical and atypical benign paroxysmal positional vertigo: literature review and new theoretical considerations. J Vestib Res. 2014;24(5–6):415–23. https://doi.org/10.3233/VES-140535.

Choung Y-H, Shin YR, Kahng H, et al. “Bow and lean test” to determine the affected ear of horizontal canal benign paroxysmal positional vertigo. Laryngoscope. 2006;116:1776–81. https://doi.org/10.1097/01.mlg.0000231291.44818.be.

Kim SK, Li SW, Hong SM. Differences in the head roll test, bow and lean test, and null plane between persistent and transient geotropic direction-changing positional nystagmus. J Clin Med. 2019;9(1):73. https://doi.org/10.3390/jcm9010073.

Scarpa A, Cassandro C, Gioacchini FM, et al. Lateralization of horizontal semicircular canal benign paroxysmal positional vertigo (HSC-BPPV) with the latency test: a pilot study. Acta Otolaryngol. 2019;139(10):854–9. https://doi.org/10.1080/00016489.2019.1635712.

Zuma e Maia F. New treatment strategy for apogeotropic horizontal canal benign paroxysmal positional vertigo. Audiol Res. 2016;6(2):36–39. https://doi.org/10.4081/audiores.2016.163.

•• Ramos BF, Cal R, Brock CM, Mangabeira Albernaz PL, Zuma E Maia F. Zuma modified maneuver as a treatment to geotropic lateral semicircular canal benign paroxysmal positional vertigo. Int Arch Otorhinolaryngol. 2021;25(02):e255. https://doi.org/10.1055/s-0040-1712935. The modified Zuma maneuver may be effective for geotropic horizontal BPPV. The use of the modified Zuma may simplify treatments for patients with horizontal canal BPPV.

Kim SH, Jo SW, Chung WK, Byeon HK, Lee WS. A cupulolith repositioning maneuver in the treatment of horizontal canal cupulolithiasis. Auris Nasus Larynx. 2012;39:163–8. https://doi.org/10.1016/j.anl.2011.03.008.

Yacovino DA, Zanotti E, Roman K, Hain TC. Square wave maneuver for apogeotropic variant of horizontal canal benign paroxysmal positional vertigo in neck restricted patients. J Otol. 2021;16(2):65–70. https://doi.org/10.1016/j.joto.2020.10.003.Thesquarewavemaneuverisusefulforindividualsthatexperiencecervicalrestrictionsorwhenthepractitionerdoesnothaveagoodunderstandingofwhichistheinvolvedside.

Ichijo H. A new treatment (the affected-ear-up 90° maneuver) for benign paroxysmal positional vertigo of the lateral semicircular canal. Acta Otolaryngol. 2019;139(7):588–92. https://doi.org/10.1080/00016489.2019.1609700.

Zhao P, Li J, Ding Y, Wang Y, Zou S. Li maneuver for geotropic horizontal canal benign paroxysmal positional vertigo (HC-BPPV) -a better choice. Am J Otolaryngol. 2021;42(5):103–32. https://doi.org/10.1016/j.amjoto.2021.103132.

Korres S, Balatsouras DG, Kaberos A, Economou C, Kandiloros D, Ferekidis E. Occurrence of semicircular canal involvement in benign paroxysmal positional vertigo. Otol Neurotol. 2002;23(6):926–32. https://doi.org/10.1097/00129492-200211000-00019.

Çakır BÖ, Ercan İ, Çakır ZA, Civelek Ş, Sayın İ, Turgut S. What is the true incidence of horizontal semicircular canal benign paroxysmal positional vertigo? Otolaryngol Head Neck Surg. 2006;134(3):451–4. https://doi.org/10.1016/j.otohns.2005.07.045.

Crevits L. Treatment of anterior canal benign paroxysmal positional vertigo by a prolonged forced position procedure. J Neurol Neurosurg Psychiatry. 2004;75:779–81. https://doi.org/10.1136/jnnp.2003.025478.

Büki B. Benign paroxysmal positional vertigo–toward new definitions. Otol Neurotol. 2014;35:323–8. https://doi.org/10.1097/mao.0000000000000197.

Bertholon P, Bronstein AM, Davies RA, et al. Positional down beating nystagmus in 50 patients: cerebellar disorders and possible anterior semicircular canalithiasis. J Neurol Neurosurg Psychiatry. 2002;72:366–72. https://doi.org/10.1136/jnnp.72.3.366.

D’Albora Rivas R, Teixido M, Casserly R, Mónaco M. Short CRP for anterior canalithiasis: a new maneuver based on simulation with a biomechanical model. Front Neurol. 2020;11:857. https://doi.org/10.3389/fneur.2020.00857.

Fuchs AF. Vertical canal benign paroxysmal positional vertigo. In: Contemporary Ocular Motor and Vestibular Research; 1994.

Kheradmand A, Zee DS. Cerebellum and ocular motor control. Front Neurol. 2011;2:53. https://doi.org/10.3389/fneur.2011.00053.

Califano L, Salafia F, Mazzone S, Melillo MG, Califano M. Anterior canal BPPV and apogeotropic posterior canal BPPV: two rare forms of vertical canalolithiasis. Acta Otorhinolaryngol Ital. 2014;34(3):189–97.

Timothy C. Hain M. Anterior Canal BPPV.Dizziness-and- balance.com. 2021. Available online at: https://dizziness-and-balance.com/disorders/bppv/acbppv/anteriorbppv.htm.

• Bhandari A, Bhandari R, Kingma H, Strupp M. Diagnostic and therapeutic maneuvers for anterior canal BPPV canalithiasis: Three-dimensional simulations. Front Neurol. 2021;12. https://doi.org/10.3389/fneur.2021.740599. The Yacovino maneuver is an effective treatment option for AC-BPPV; however, risk of canal conversion can be reduced by transitioning immediately to sitting from a head-hang position.

Yacovino D, Hain T, Gualtieri F. New therapeutic maneuver for anterior canal benign paroxysmal positional vertigo. J Neurol. 2009;1851– 5. https://doi.org/10.1007/s00415-009-5208-1.

Hain TC, Squires TM, Stone HA. Clinical implications of a mathematical model of benign paroxysmal positional vertigo. Ann N Y Acad Sci. 2005:384–94. https://doi.org/10.1196/annals.1325.036.

Anagnostou E, Kouzi I, Spengos K. Diagnosis and treatment of anterior- canal benign paroxysmal positional vertigo: a systematic review. J Clin Neurol. 2015;11:262. https://doi.org/10.3988/jcn.2015.11.3.262.

Kim YK, Shin JE, Chung JW. The effect of canalith repositioning for anterior semicircular canal canalithiasis. ORL J Otorhinolaryngol Relat Spec. 2005;67:56–60. https://doi.org/10.1159/000084336.

von Brevern M, Lezius F, Tiel-Wilck K, Radtke A, Lempert T. Benign paroxysmal positional vertigo: current status of medical management. Otolaryngol Head Neck Surg. 2004;130:381–2. https://doi.org/10.1016/j.otohns.2003.07.00.

Honrubia V, Baloh RW, Harris MR, Jacobson KM. Paroxysmal positional vertigo syndrome. Am J Otol. 1999;20:465–70.