Comparison of electrode montages for ocular Vestibular Evoked Myogenic Potential (oVEMP) using air-conducted tone burst stimulation: Is there an optimal configuration?

Mônica Alcantara de Oliveira Santos, Karen de Carvalho Lopes, Patrícia Soares Montemagni, Caroline Martins Dos Santos Leopoldo, Fernando Freitas Ganança

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Article in Brazilian journal of otorhinolaryngology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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Mônica Alcantara de Oliveira SantosUniversidade Federal de São Paulo, Department of Otolaryngology and Head and Neck Surgery, São Paulo, SP, Brazil; Santa Casa de Misericórdia de São Paulo, Department of Otolaryngology, São Paulo, SP, Brazil.

Karen de Carvalho LopesUniversidade Federal de São Paulo, Department of Otolaryngology and Head and Neck Surgery, São Paulo, SP, Brazil. Electronic address: kclopes04@gmail.com.

Patrícia Soares MontemagniSanta Casa de Misericórdia de São Paulo, Department of Otolaryngology, São Paulo, SP, Brazil.

Caroline Martins Dos Santos LeopoldoSanta Casa de Misericórdia de São Paulo, Department of Otolaryngology, São Paulo, SP, Brazil.

Fernando Freitas GanançaUniversidade Federal de São Paulo, Department of Otolaryngology and Head and Neck Surgery, São Paulo, SP, Brazil.

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6 · The paper itself

Abstract

objectiveTo compare three electrode montages - infraorbital (standard), chin and belly-tendon - for ocular Vestibular Evoked Myogenic Potential (oVEMP), using air-conducted 500 Hz tone burst stimulation in health adults.

methodsAn observational cross-sectional study was conducted in 50 healthy volunteers (100 ears) aged 22‒55. oVEMP was recorded using three randomized electrode montages in all volunteers. N1 and P1 latencies, peak-to-peak amplitudes and asymmetry ratios were analyzed.

resultsBelly-tendon montage was associated with shorter N1 and P1 latencies compared to both infraorbital and chin montages (p < 0.05) and no significant differences in peak-to-peak amplitudes or asymmetry ratios were observed. No ear side or sex differences were found, while a significant negative correlation between age and interamplitude was noted.

conclusionsWhile the belly-tendon montage demonstrated shorter N1 and P1 latencies, all three configurations provided comparable amplitude and asymmetry ratio values. These finds suggest that electrode montage choice may prioritize patient comfort, examiner experience and anatomical characteristics.

Indexed as

Acoustic stimulationElectrode montageOcular Vestibular Evoked Myogenic Potential (oVEMP)Tone burst

Identifiers

PMID42800366

DOI10.1016/j.bjorl.2026.101912

PMCPMC13639173

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