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Auteur Kristen L. Janky |
Documents disponibles écrits par cet auteur



Age Effects of Bone Conduction Vibration Vestibular-evoked Myogenic Potentials (VEMPs) Using B81 and Impulse Hammer Stimuli / Jessie N. Patterson in Ear and hearing, Vol. 42, n°5 (Septembre-Octobre 2021)
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Titre : Age Effects of Bone Conduction Vibration Vestibular-evoked Myogenic Potentials (VEMPs) Using B81 and Impulse Hammer Stimuli Type de document : Article Auteurs : Jessie N. Patterson ; Amanda I. Rodriguez ; Katherine R. Gordon ; Julie A. Honaker ; Kristen L. Janky Année de publication : 2021 Article en page(s) : p. 1328-1337 Langues : Anglais (eng) Descripteurs : Autres descripteurs
Effet de l'age
HE Vinci
Conduction osseuse ; Potentiels évoqués vestibulaires myogéniques (cVEMP) (mVEMP) (oVEMP) ; VestibulométrieRésumé : Objective: Recently developed, the Radioear B81 bone oscillator allows for higher bone conduction vibration output; however, normative data are lacking regarding its use in vestibular-evoked myogenic potential (VEMP) testing. The purpose of this study was to examine the effect of age on cervical and ocular VEMP (c- and oVEMP) responses using the B81 and to compare with air conduction stimuli (ACS) and impulse hammer (IH) VEMP response characteristics.
Design: c- and oVEMP were completed with ACS, B81, and IH stimuli in healthy participants (age range = 10 to 87 years, n = 85).
Results: Regardless of stimulus type, c- and oVEMP amplitudes and response rates decreased with age. For cVEMP response rates, ACS performed better or equal to B81, which was superior to the IH. For cVEMP corrected amplitude, ACS had significantly higher amplitudes compared with B81 and IH. There was no difference in cVEMP corrected amplitude between B81 and IH. For oVEMP, response rates were comparable between stimuli with the largest disparity in response rates occurring in the oldest groups where IH outperformed both ACS and B81. For oVEMP amplitude, IH had significantly higher amplitudes compared with B81 and ACS. There was no difference in oVEMP amplitude between B81 and ACS.
Conclusions: Age significantly affected c- and oVEMP amplitudes regardless of stimulus type (ACS, B81, IH). All stimuli are appropriate for eliciting c- and oVEMP in the young individuals. While ACS resulted in higher cVEMP corrected amplitudes, either ACS or B81 are appropriate for older individuals. However, for oVEMPs, higher response rates and larger amplitudes were noted for IH followed by B81 and ACS. Overall, the B81 performed well across the lifespan for c- and oVEMPs and may be a reasonable bone conduction vibration option for patients with absent ACS VEMPs, but at this time is not recommended as a replacement to ACS.Disponible en ligne : Oui En ligne : https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=J [...] Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=289394
in Ear and hearing > Vol. 42, n°5 (Septembre-Octobre 2021) . - p. 1328-1337[article]Bone Conduction Vibration Vestibular Evoked Myogenic Potential (VEMP) Testing: Reliability in Children, Adolescents, and Young Adults / Nicole L. Greenwalt in Ear and hearing, Vol. 42, n°2 (Mars-Avril 2021)
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Titre : Bone Conduction Vibration Vestibular Evoked Myogenic Potential (VEMP) Testing: Reliability in Children, Adolescents, and Young Adults Type de document : Article Auteurs : Nicole L. Greenwalt ; Jessie N. Patterson ; Amanda I. Rodriguez ; Dennis F. Fitzpatrick ; Katherine R. Gordon ; Kristen L. Janky Année de publication : 2021 Article en page(s) : p. 355-363 Langues : Anglais (eng) Descripteurs : HE Vinci
Conduction osseuse ; Potentiels évoqués vestibulaires myogéniques (cVEMP) (mVEMP) (oVEMP)Résumé : Bone conduction vibration (BCV) vestibular evoked myogenic potentials (VEMP) are clinically desirable in children for multiple reasons. However, no accepted standard exists for stimulus type and the reliability of BCV devices has not been investigated in children. The objective of the current study was to determine which BCV VEMP method (B-71, impulse hammer, or Mini-shaker) yields the highest response rates and reliability in a group of adults, adolescents, and children. It was hypothesized that the Mini-shaker would yield the highest response rates and reliability because it provides frequency specificity, higher output levels without distortion, and the most consistent force output as compared to the impulse hammer and B-71.
Design: Participants included 10 child (ages 5 to 10), 11 adolescent (ages 11 to 18), and 11 young adult (ages 23 to 39) normal controls. Cervical VEMP (cVEMP) and ocular VEMP (oVEMP) were measured in response to suprathreshold air-conducted, 500 Hz tone bursts and 3 types of BCV (B-71, impulse hammer, and Mini-shaker) across 2 test sessions to assess reliability.
Results: For cVEMP, response rates were 100% for all methods in all groups with the exception of the adult group in response to the impulse hammer (95%). For oVEMP, response rates varied by group and BCV method. For cVEMP, reliability was highest in adults using the Mini-shaker, in adolescents using the impulse hammer, and in children using the B-71. For oVEMP, reliability was highest in adults using the Mini-shaker, in adolescents using the Mini-shaker or impulse hammer, and in children using the impulse hammer. Age positively correlated with air-conducted oVEMP amplitude, but not cVEMP amplitude or cVEMP corrected amplitude. Age negatively correlated with all BCV VEMP amplitudes with the exception of cVEMP corrected amplitude in response to the Mini-shaker.
Conclusions: All BCV methods resulted in consistent cVEMP responses (response rates 95 to 100%) with at least moderate reliability (intraclass correlation coefficient >= 0.5) for all groups. Similarly, all BCV methods resulted in consistent oVEMP responses (89 to 100%) with at least moderate reliability (intraclass correlation coefficient >= 0.5) except for the B-71 in adults.Disponible en ligne : Oui En ligne : https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=J [...] Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=265743
in Ear and hearing > Vol. 42, n°2 (Mars-Avril 2021) . - p. 355-363[article]Effect of Cochlear Implantation on Vestibular Evoked Myogenic Potentials and Wideband Acoustic Immittance / Gabrielle R. Merchant in Ear and hearing, Vol. 41, n°5 (Septembre-octobre 2020)
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Titre : Effect of Cochlear Implantation on Vestibular Evoked Myogenic Potentials and Wideband Acoustic Immittance Type de document : Article Auteurs : Gabrielle R. Merchant ; Kyli M. Schulz ; Jessie N. Patterson ; Dennis F. Fitzpatrick ; Kristen L. Janky Année de publication : 2020 Article en page(s) : p. 1111-1124 Langues : Anglais (eng) Descripteurs : Autres descripteurs
Immitance acoustique
HE Vinci
Audition periphérique ; Implants cochléaires ; Potentiels évoqués vestibulaires myogéniques (cVEMP) (mVEMP) (oVEMP)Résumé : Objectives: The objective of this study was to determine if absent air conduction stimuli vestibular evoked myogenic potential (VEMP) responses found in ears after cochlear implantation can be the result of alterations in peripheral auditory mechanics rather than vestibular loss. Peripheral mechanical changes were investigated by comparing the response rates of air and bone conduction VEMPs as well as by measuring and evaluating wideband acoustic immittance (WAI) responses in ears with cochlear implants and normal-hearing control ears. The hypothesis was that the presence of a cochlear implant can lead to an air-bone gap, causing absent air conduction stimuli VEMP responses, but present bone conduction vibration VEMP responses (indicating normal vestibular function), with changes in WAI as compared with ears with normal hearing. Further hypotheses were that subsets of ears with cochlear implants would (a) have present VEMP responses to both stimuli, indicating normal vestibular function and either normal or near-normal WAI, or (b) have absent VEMP responses to both stimuli, regardless of WAI, due to true vestibular loss.
Design: Twenty-seven ears with cochlear implants (age range 7 to 31) and 10 ears with normal hearing (age range 7 to 31) were included in the study. All ears completed otoscopy, audiometric testing, 226 Hz tympanometry, WAI measures (absorbance), air conduction stimuli cervical and ocular VEMP testing through insert earphones, and bone conduction vibration cervical and ocular VEMP testing with a mini-shaker. Comparisons of VEMP responses to air and bone conduction stimuli, as well as absorbance responses between ears with normal hearing and ears with cochlear implants, were completed.
Results: All ears with normal hearing demonstrated 100% present VEMP response rates for both stimuli. Ears with cochlear implants had higher response rates to bone conduction vibration compared with air conduction stimuli for both cervical and ocular VEMPs; however, this was only significant for ocular VEMPs. Ears with cochlear implants demonstrated reduced low-frequency absorbance (500 to 1200 Hz) as compared with ears with normal hearing. To further analyze absorbance, ears with cochlear implants were placed into subgroups based on their cervical and ocular VEMP response patterns. These groups were (1) present air conduction stimuli response, present bone conduction vibration response, (2) absent air conduction stimuli response, present bone conduction vibration response, and (3) absent air conduction stimuli response, absent bone conduction vibration response. For both cervical and ocular VEMPs, the group with absent air conduction stimuli responses and present bone conduction vibration responses demonstrated the largest decrease in low-frequency absorbance as compared with the ears with normal hearing.
Conclusions: Bone conduction VEMP response rates were increased compared with air-conduction VEMP response rates in ears with cochlear implants. Ears with cochlear implants also demonstrate changes in low-frequency absorbance consistent with a stiffer system. This effect was largest for ears that had absent air conduction but present bone conduction VEMPs. These findings suggest that this group, in particular, has a mechanical change that could lead to an air-bone gap, thus, abolishing the air conduction VEMP response due to an alteration in mechanics and not a true vestibular loss. Clinical considerations include using bone conduction vibration VEMPs and WAI for preoperative and postoperative testing in patients undergoing cochlear implantation.Disponible en ligne : Oui En ligne : https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=J [...] Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=267129
in Ear and hearing > Vol. 41, n°5 (Septembre-octobre 2020) . - p. 1111-1124[article]Effects of device on video head impulse test (vHIT) gain / Kristen L. Janky in Journal of the American Academy of Audiology (JAAA), Vol.28, n°9 (October 2017)
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Titre : Effects of device on video head impulse test (vHIT) gain Type de document : Article Auteurs : Kristen L. Janky ; Jessie N. Patterson ; Neil T. Shepard ; Megan L. A. Thomas ; Julie A. Honaker Année de publication : 2017 Article en page(s) : p. 778-785 Langues : Anglais (eng) Descripteurs : Autres descripteurs
Effet de l'age
HE Vinci
Canal semi-circulaire ; Test d'impulsion rotatoire de la tête (vHIT) ; VestibulométrieDisponible en ligne : Oui En ligne : https://login.ezproxy.vinci.be/login?url=https://www.thieme-connect.de/products/ [...] Permalink : https://bib.vinci.be/opac_css/index.php?lvl=notice_display&id=220405
in Journal of the American Academy of Audiology (JAAA) > Vol.28, n°9 (October 2017) . - p. 778-785[article]Exemplaires (1)
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