Maja Striteska - Academia.edu (original) (raw)

Papers by Maja Striteska

Research paper thumbnail of BPPV and Meniere disease

Research paper thumbnail of Superior semicircular canal dehiscence

Ceska A Slovenska Neurologie A Neurochirurgie, Jul 31, 2019

Research paper thumbnail of Estimated Vestibulogram (EVEST) for Effective Vestibular Assessment

BioMed Research International, Mar 2, 2021

Background. The availability and development of methods testing the vestibuloocular reflex (VOR) ... more Background. The availability and development of methods testing the vestibuloocular reflex (VOR) brought a broader view into the lateral semicircular canal (L-SCC) function. However, the higher number of evaluated parameters makes more difficult the specialist's diagnose-making process. Purpose. To provide medical specialists, a new diagnostic-graphic tool, Estimated Vestibulogram-EVEST, enabling a quick and easy-to-read visualization and comparison of the VOR test results within the L-SCC. Methods. The development of EVEST involved 148 participants, including 49 healthy volunteers (28 female and 21 male) and 99 (58 female and 41 male) patients affected by different degrees of peripheral vestibular deficit. The corresponding L-SCC VOR test results, from patients meeting the diagnostic criteria, were used to create the EVEST. Results. Based on the test results, we depicted and calculated the EVEST vestibular function asymmetry (VFA) in all the groups. To assess a feasibility of EVEST to describe a vestibular function deficit, we calculated sensitivity and specificity of VFA using a receiver operating characteristic curve (ROC) and compared it to single tests. In all the tests, we determined the cutoff value as the point with the highest sensitivity and specificity. For discrimination of any vestibular deficit, the VFA with cutoff 6.5% was more sensitive (91%) and specific (98%) than single tests. Results showed that EVEST is a beneficial graphic tool for quick multifrequency comparison and diagnosis of different types of the peripheral vestibular loss. Conclusions. EVEST can help to easily evaluate various types of peripheral vestibular lesion.

Research paper thumbnail of Binocular video head impulse test: Normative data study

Frontiers in Neurology

IntroductionThe video head impulse test (vHIT) evaluates the vestibulo-ocular reflex (VOR). It’s ... more IntroductionThe video head impulse test (vHIT) evaluates the vestibulo-ocular reflex (VOR). It’s usually recorded from only one eye. Newer vHIT devices allow a binocular quantification of the VOR.Purpose (Aim)To investigate the advantages of simultaneously recorded binocular vHIT (bvHIT) to detect the differences between the VOR gains of the adducting and the abducting eye, to define the most precise VOR measure, and to assess gaze dys/conjugacy. We aimed to establish normative values for bvHIT adducting/abducting eye VOR gains and to introduce the VOR dysconjugacy ratio (vorDR) between adducting and abducting eyes for bvHIT.MethodsWe enrolled 44 healthy adult participants in a cross-sectional, prospective study using a repeated-measures design to assess test–retest reliability. A binocular EyeSeeCam Sci 2 device was used to simultaneously record bvHIT from both eyes during impulsive head stimulation in the horizontal plane.ResultsPooled bvHIT retest gains of the adducting eye signi...

Research paper thumbnail of Enhancement of subarachnoid space during magnetic resonance imaging of endolymphatic hydrops: a case report

Journal of International Medical Research, 2021

Enhancement of the subarachnoid space after intravenous administration of gadolinium contrast age... more Enhancement of the subarachnoid space after intravenous administration of gadolinium contrast agent is not common. Enhancement usually occurs in pathological conditions that increase the permeability of the blood–cerebrospinal fluid barrier, most notably in meningitis. We herein describe possible subarachnoid enhancement in patients with no apparent effect on the meninges. These patients had clinical signs of Meniere’s disease and underwent specific magnetic resonance imaging of the inner ear to possibly visualize endolymphatic hydrops. The endolymphatic space can be noninvasively imaged by intravenous administration of contrast agent, usually at a double dose, 4 hours before the scanning process. During this time, the contrast agent penetrates not only the perilymph but also the subarachnoid space, where the highest concentration occurs after 4 hours according to some studies.

Research paper thumbnail of Dehiscence horního polokruhovitého kanálku - kazuistika

Ceska A Slovenska Neurologie A Neurochirurgie, 2019

Souhrn Syndrom dehiscence horniho polokruhoviteho kanalku je poměrně vzacne onemocněni vnitřniho ... more Souhrn Syndrom dehiscence horniho polokruhoviteho kanalku je poměrně vzacne onemocněni vnitřniho ucha. Klinickým projevem jsou různe kombinace casto až bizarnich rovnovažných a sluchových obtiži. Patologicko-anatomickým a patofyziologickým podkladem klinickeho syndromu je defekt oticke kapsuly v oblasti středni jamy lebni. Dehiscence tak vytvaři třeti mobilni okenko. Cilem kazuistickeho sděleni je prezentovat typický obraz vestibularni a audiologicke symptomatologie uvedeneho syndromu, diagnostický postup i vlastni lecbu – chirurgicke osetřeni dehiscence. Klicova slova dehiscence horniho polokruhoviteho kanalku, Tullio fenomen, vestibularně evokovane myogenni potencialy, třeti okenko, vertigo

Research paper thumbnail of Head-shaking-induced nystagmus reflects dynamic vestibular compensation: A 2-year follow-up study

Frontiers in Neurology

PurposeWe aimed to assess the ability of a head-shaking test (HST) to reflect vestibular compensa... more PurposeWe aimed to assess the ability of a head-shaking test (HST) to reflect vestibular compensation in patients after unilateral peripheral vestibular loss and to provide missing evidence and new insights into the features of head-shaking-induced nystagmus (HSN) over a 2-year follow-up.BackgroundHSN may occur after a prolonged sinusoidal oscillation of the head. HSN is frequently observed in subjects with vestibular function asymmetry; it usually beats toward the functionally intact or “stronger” ear and can be followed by a reversal of its direction.Study designA prospective observational case-control study.SettingsA tertiary academic referral center.MethodsA total of 38 patients after acute unilateral vestibular loss (22 patients with vestibular neuronitis and 16 patients after vestibular neurectomy) and 28 healthy controls were followed for four consecutive visits over a 2-year period. A complex vestibular assessment was performed on all participants, which included spontaneous...

Research paper thumbnail of The Relationship between Bone Conduction Hearing Threshold Shifts after Surgery for Chronic Otitis Media with Cholesteatoma According to STAM, EAONO/JOS, and SAMEO-ATO Classifications

Journal of Clinical Medicine

Background: This study focuses on the hearing threshold for bone conduction (BC) after middle-ear... more Background: This study focuses on the hearing threshold for bone conduction (BC) after middle-ear surgery. Methods: A total of 92 patients (120 ears) were treated for newly diagnosed chronic otitis media with cholesteatoma (2013–2018). BC was examined at frequencies of 0.5, 1, 2, and 4 kHz prior to and 1 year after surgery. STAM classification for cholesteatoma location, EAONO/JOS for stage, and surgery according to SAMEO-ATO classification were applied. The bone conduction threshold was compared for individual frequencies in patients with occurrence/absence of cholesteatoma in different locations. Results: For the occurrence of cholesteatoma in the attic (A), a statistically significant difference was found at 4 kHz (p < 0.001), in the supratubal recess (S1) at 4 kHz (p = 0.003), and for the mastoid (M) at 0.5 kHz (p = 0.024), at 1 kHz (p = 0.032), and at 2 kHz (p = 0.039). Conclusions: Cholesteatoma location can influence the post-operative hearing threshold for bone conduction.

Research paper thumbnail of Estimated Vestibulogram (EVEST): Effective Graphic Tool for Vestibular Assessment

BACKGROUND: The availability and development of the methods testing the vestibuloocular reflex (V... more BACKGROUND: The availability and development of the methods testing the vestibuloocular reflex (VOR) bring a broader view into the lateral semi-circular canal (L-SCC) function. At the same time, a higher number of evaluated parameters increases demands on the specialist's diagnose-making process. OBJECTIVE: To provide medical specialists a new diagnostic-graphic tool, Estimated Vestibulogram-EVEST, enabling a quick and easy-to-read visualization of the enhanced VOR test results within the L-SCC. METHODS: The research data for the development of the EVEST involved 148 participants including 49 healthy volunteers (28 female and 21 male) and 99 (58 female and 41 male) patients with a diverse degree of peripheral vestibular deficit. The correspoding L-SCC VOR test results, from patients meeting the diagnostic criteria, were used to create the EVEST. RESULTS: Based on the test results from the sample of 148 participants we demonstrate on cumulative and single EVEST graphs that the EVEST is a functional and reliable tool for quick graphic diagnosis of diverse types and levels of the peripheral vestibular loss. CONCLUSIONS: Unique patterns of the EVEST can help to easily distinguish various types and levels of the peripheral vestibular loss.

Research paper thumbnail of Estimated Vestibulogram (EVEST) for Effective Vestibular Assessment

BioMed Research International, 2021

Background. The availability and development of methods testing the vestibuloocular reflex (VOR) ... more Background. The availability and development of methods testing the vestibuloocular reflex (VOR) brought a broader view into the lateral semicircular canal (L-SCC) function. However, the higher number of evaluated parameters makes more difficult the specialist’s diagnose-making process. Purpose. To provide medical specialists, a new diagnostic-graphic tool, Estimated Vestibulogram- EVEST, enabling a quick and easy-to-read visualization and comparison of the VOR test results within the L-SCC. Methods. The development of EVEST involved 148 participants, including 49 healthy volunteers (28 female and 21 male) and 99 (58 female and 41 male) patients affected by different degrees of peripheral vestibular deficit. The corresponding L-SCC VOR test results, from patients meeting the diagnostic criteria, were used to create the EVEST. Results. Based on the test results, we depicted and calculated the EVEST vestibular function asymmetry (VFA) in all the groups. To assess a feasibility of EVES...

Research paper thumbnail of BPPV and Meniere disease

Research paper thumbnail of Superior semicircular canal dehiscence

Ceska A Slovenska Neurologie A Neurochirurgie, Jul 31, 2019

Research paper thumbnail of Estimated Vestibulogram (EVEST) for Effective Vestibular Assessment

BioMed Research International, Mar 2, 2021

Background. The availability and development of methods testing the vestibuloocular reflex (VOR) ... more Background. The availability and development of methods testing the vestibuloocular reflex (VOR) brought a broader view into the lateral semicircular canal (L-SCC) function. However, the higher number of evaluated parameters makes more difficult the specialist's diagnose-making process. Purpose. To provide medical specialists, a new diagnostic-graphic tool, Estimated Vestibulogram-EVEST, enabling a quick and easy-to-read visualization and comparison of the VOR test results within the L-SCC. Methods. The development of EVEST involved 148 participants, including 49 healthy volunteers (28 female and 21 male) and 99 (58 female and 41 male) patients affected by different degrees of peripheral vestibular deficit. The corresponding L-SCC VOR test results, from patients meeting the diagnostic criteria, were used to create the EVEST. Results. Based on the test results, we depicted and calculated the EVEST vestibular function asymmetry (VFA) in all the groups. To assess a feasibility of EVEST to describe a vestibular function deficit, we calculated sensitivity and specificity of VFA using a receiver operating characteristic curve (ROC) and compared it to single tests. In all the tests, we determined the cutoff value as the point with the highest sensitivity and specificity. For discrimination of any vestibular deficit, the VFA with cutoff 6.5% was more sensitive (91%) and specific (98%) than single tests. Results showed that EVEST is a beneficial graphic tool for quick multifrequency comparison and diagnosis of different types of the peripheral vestibular loss. Conclusions. EVEST can help to easily evaluate various types of peripheral vestibular lesion.

Research paper thumbnail of Binocular video head impulse test: Normative data study

Frontiers in Neurology

IntroductionThe video head impulse test (vHIT) evaluates the vestibulo-ocular reflex (VOR). It’s ... more IntroductionThe video head impulse test (vHIT) evaluates the vestibulo-ocular reflex (VOR). It’s usually recorded from only one eye. Newer vHIT devices allow a binocular quantification of the VOR.Purpose (Aim)To investigate the advantages of simultaneously recorded binocular vHIT (bvHIT) to detect the differences between the VOR gains of the adducting and the abducting eye, to define the most precise VOR measure, and to assess gaze dys/conjugacy. We aimed to establish normative values for bvHIT adducting/abducting eye VOR gains and to introduce the VOR dysconjugacy ratio (vorDR) between adducting and abducting eyes for bvHIT.MethodsWe enrolled 44 healthy adult participants in a cross-sectional, prospective study using a repeated-measures design to assess test–retest reliability. A binocular EyeSeeCam Sci 2 device was used to simultaneously record bvHIT from both eyes during impulsive head stimulation in the horizontal plane.ResultsPooled bvHIT retest gains of the adducting eye signi...

Research paper thumbnail of Enhancement of subarachnoid space during magnetic resonance imaging of endolymphatic hydrops: a case report

Journal of International Medical Research, 2021

Enhancement of the subarachnoid space after intravenous administration of gadolinium contrast age... more Enhancement of the subarachnoid space after intravenous administration of gadolinium contrast agent is not common. Enhancement usually occurs in pathological conditions that increase the permeability of the blood–cerebrospinal fluid barrier, most notably in meningitis. We herein describe possible subarachnoid enhancement in patients with no apparent effect on the meninges. These patients had clinical signs of Meniere’s disease and underwent specific magnetic resonance imaging of the inner ear to possibly visualize endolymphatic hydrops. The endolymphatic space can be noninvasively imaged by intravenous administration of contrast agent, usually at a double dose, 4 hours before the scanning process. During this time, the contrast agent penetrates not only the perilymph but also the subarachnoid space, where the highest concentration occurs after 4 hours according to some studies.

Research paper thumbnail of Dehiscence horního polokruhovitého kanálku - kazuistika

Ceska A Slovenska Neurologie A Neurochirurgie, 2019

Souhrn Syndrom dehiscence horniho polokruhoviteho kanalku je poměrně vzacne onemocněni vnitřniho ... more Souhrn Syndrom dehiscence horniho polokruhoviteho kanalku je poměrně vzacne onemocněni vnitřniho ucha. Klinickým projevem jsou různe kombinace casto až bizarnich rovnovažných a sluchových obtiži. Patologicko-anatomickým a patofyziologickým podkladem klinickeho syndromu je defekt oticke kapsuly v oblasti středni jamy lebni. Dehiscence tak vytvaři třeti mobilni okenko. Cilem kazuistickeho sděleni je prezentovat typický obraz vestibularni a audiologicke symptomatologie uvedeneho syndromu, diagnostický postup i vlastni lecbu – chirurgicke osetřeni dehiscence. Klicova slova dehiscence horniho polokruhoviteho kanalku, Tullio fenomen, vestibularně evokovane myogenni potencialy, třeti okenko, vertigo

Research paper thumbnail of Head-shaking-induced nystagmus reflects dynamic vestibular compensation: A 2-year follow-up study

Frontiers in Neurology

PurposeWe aimed to assess the ability of a head-shaking test (HST) to reflect vestibular compensa... more PurposeWe aimed to assess the ability of a head-shaking test (HST) to reflect vestibular compensation in patients after unilateral peripheral vestibular loss and to provide missing evidence and new insights into the features of head-shaking-induced nystagmus (HSN) over a 2-year follow-up.BackgroundHSN may occur after a prolonged sinusoidal oscillation of the head. HSN is frequently observed in subjects with vestibular function asymmetry; it usually beats toward the functionally intact or “stronger” ear and can be followed by a reversal of its direction.Study designA prospective observational case-control study.SettingsA tertiary academic referral center.MethodsA total of 38 patients after acute unilateral vestibular loss (22 patients with vestibular neuronitis and 16 patients after vestibular neurectomy) and 28 healthy controls were followed for four consecutive visits over a 2-year period. A complex vestibular assessment was performed on all participants, which included spontaneous...

Research paper thumbnail of The Relationship between Bone Conduction Hearing Threshold Shifts after Surgery for Chronic Otitis Media with Cholesteatoma According to STAM, EAONO/JOS, and SAMEO-ATO Classifications

Journal of Clinical Medicine

Background: This study focuses on the hearing threshold for bone conduction (BC) after middle-ear... more Background: This study focuses on the hearing threshold for bone conduction (BC) after middle-ear surgery. Methods: A total of 92 patients (120 ears) were treated for newly diagnosed chronic otitis media with cholesteatoma (2013–2018). BC was examined at frequencies of 0.5, 1, 2, and 4 kHz prior to and 1 year after surgery. STAM classification for cholesteatoma location, EAONO/JOS for stage, and surgery according to SAMEO-ATO classification were applied. The bone conduction threshold was compared for individual frequencies in patients with occurrence/absence of cholesteatoma in different locations. Results: For the occurrence of cholesteatoma in the attic (A), a statistically significant difference was found at 4 kHz (p < 0.001), in the supratubal recess (S1) at 4 kHz (p = 0.003), and for the mastoid (M) at 0.5 kHz (p = 0.024), at 1 kHz (p = 0.032), and at 2 kHz (p = 0.039). Conclusions: Cholesteatoma location can influence the post-operative hearing threshold for bone conduction.

Research paper thumbnail of Estimated Vestibulogram (EVEST): Effective Graphic Tool for Vestibular Assessment

BACKGROUND: The availability and development of the methods testing the vestibuloocular reflex (V... more BACKGROUND: The availability and development of the methods testing the vestibuloocular reflex (VOR) bring a broader view into the lateral semi-circular canal (L-SCC) function. At the same time, a higher number of evaluated parameters increases demands on the specialist's diagnose-making process. OBJECTIVE: To provide medical specialists a new diagnostic-graphic tool, Estimated Vestibulogram-EVEST, enabling a quick and easy-to-read visualization of the enhanced VOR test results within the L-SCC. METHODS: The research data for the development of the EVEST involved 148 participants including 49 healthy volunteers (28 female and 21 male) and 99 (58 female and 41 male) patients with a diverse degree of peripheral vestibular deficit. The correspoding L-SCC VOR test results, from patients meeting the diagnostic criteria, were used to create the EVEST. RESULTS: Based on the test results from the sample of 148 participants we demonstrate on cumulative and single EVEST graphs that the EVEST is a functional and reliable tool for quick graphic diagnosis of diverse types and levels of the peripheral vestibular loss. CONCLUSIONS: Unique patterns of the EVEST can help to easily distinguish various types and levels of the peripheral vestibular loss.

Research paper thumbnail of Estimated Vestibulogram (EVEST) for Effective Vestibular Assessment

BioMed Research International, 2021

Background. The availability and development of methods testing the vestibuloocular reflex (VOR) ... more Background. The availability and development of methods testing the vestibuloocular reflex (VOR) brought a broader view into the lateral semicircular canal (L-SCC) function. However, the higher number of evaluated parameters makes more difficult the specialist’s diagnose-making process. Purpose. To provide medical specialists, a new diagnostic-graphic tool, Estimated Vestibulogram- EVEST, enabling a quick and easy-to-read visualization and comparison of the VOR test results within the L-SCC. Methods. The development of EVEST involved 148 participants, including 49 healthy volunteers (28 female and 21 male) and 99 (58 female and 41 male) patients affected by different degrees of peripheral vestibular deficit. The corresponding L-SCC VOR test results, from patients meeting the diagnostic criteria, were used to create the EVEST. Results. Based on the test results, we depicted and calculated the EVEST vestibular function asymmetry (VFA) in all the groups. To assess a feasibility of EVES...