Vascular Loops and Neuro-Otologic Symptoms: Is There Any Correlation?

Fidalgo, Amaya Roldán; Rodríguez-Valiente, Antonio; González, Francisco Martín Martínez; Pinilla, Mauricio; Trinidad, Almudena; Álvarez, Blanca Beatríz

doi:10.4236/ijohns.2013.26051

Cited by 5 publications

(9 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There were 71 out of the 470 MRI-IAM performed over 10 years had vascular loops reported which made up to 15.1% that fell within the 14% to 34% range of prevalence of vascular loops reported by MRI in the population. 7,9 The majority distribution of vascular loops among in our study group was bilateral (49.3%) followed by right side (35.2%) and then left side (15.4%). This was similar to other published data where 53.2% was bilateral, 27.7% right sided and 19.1% left sided.…”

Section: Discussionmentioning

confidence: 68%

Vascular Loops: The Innocent Bystander for Vestibular Paroxysmia

Teh

Noordiana

Shamini

et al. 2021

Ann Otol Rhinol Laryngol

View full text Add to dashboard Cite

Introduction: Vestibular paroxysmia (VP) is a condition with recurrent short bouts of vertigo and is thought to be part of a neurovascular compression syndrome caused by the vascular loop. However, this is still being debated as vascular loops are considered as normal variants with limited studies involving vertiginous patients. Objectives: The aim of this paper is to study the association between audiovestibular symptoms and the presence of vascular loops and to study the association between vestibular paroxysmia and vascular loops. Design: This is a retrospective analysis of clinical, audiological and MRI findings of patients with and without vascular loops and vestibular paroxysmia from 2000 to 2020. Results: A total of 470 MRI Internal Auditory Meatus scans were performed during the study period of which, 71 (15.1%) had vascular loops and 162 (34.5%) had normal MRI which were used as controls. From the 233 subjects recruited, there were 37 subjects with VP and 196 non VP subjects were used as controls. There was no association between the vascular loop and control groups in terms of co-morbidity and audiovestibular symptoms. The VP group had a significantly older mean age of 51.8 (SD ± 10.3) as compared to the non VP group with the mean age of 45.6 (SD ± 15.5). The VP group had higher number of patients presenting with hearing loss at 97.3% when compared with those without VP (80.1%) ( P = .01). The odds of having a vascular loop giving rise to VP was not statistically significant at 0.82 (95% CI 0.3735-1.7989) P = .62. Conclusion: The vascular loop is a normal variant which may or may not give rise to audiovestibular symptoms or vestibular paroxysmia. Clinical assessment is still most important tool in deriving a diagnosis of VP and MRI may be useful to rule out other central causes.

show abstract

Section: Discussionmentioning

confidence: 68%

Vascular Loops: The Innocent Bystander for Vestibular Paroxysmia

Teh

Noordiana

Shamini

et al. 2021

Ann Otol Rhinol Laryngol

View full text Add to dashboard Cite

show abstract

“…Una de las estructuras vasculares que mantienen relación con estos es la AICA (6). En el CAI, hay un espacio mínimo para el nervio facial, vestíbulococlear y el bucle de la AICA, generando una susceptibilidad anatómica de compresión vascular, originando disfunción del nervio (8). Por ello, la compresión de nervios craneales por estructuras vasculares causa trastornos de los pares, de tal forma que si se comprime el nervio facial se presentará espasmo hemifacial; si se comprimen los troncos de los nervios auditivos y vestibulares podría originar pérdida de audición neurosensorial, acúfenos y vértigo (8,9).…”

Section: Discussionunclassified

“…Con la RMN cerebral es posible identificar detalles finos, tales como asas vasculares en el CAI (10,11), de igual forma a partir de ella es posible visualizar estructuras vasculares y neuronales en el ángulo pontocerebeloso y determinar la relación entre el nervio vestíbulococlear y la vasculatura a su alrededor (8). En la Tabla 2 se observa la clasificación de las asas vasculares.…”

Section: Discussionunclassified

Vértigo como presentación clínica de asa vascular de la arteria cerebelosa antero inferior

et al. 2018

View full text Add to dashboard Cite

El vértigo es un frecuente motivo de consulta cuyo origen puede ser periférico o central; causas poco frecuentes de este último son las asas vasculares que afectan el VIII par craneal llevando a acúfenos, pérdida de la audición y mareo. Se presenta una mujer de 47 años de edad, quien consulta por un cuadro de mareo, náuseas, pérdida del tono postural, cefalea y parestesia facial, cuyo examen físico revela signos de vértigo periférico, iniciándose tratamiento con antieméticos, anticinetósicos y vasodilatadores que llevan a empeoramiento del cuadro, por lo que se sospecha de patología a nivel de sistema nervioso central (SNC) que ejerce compresión con la vasodilatación. Se realiza una resonancia magnética que muestra un asa vascular en la arteria cerebelosa inferior anterior (AICA) que ingresa al conducto auditivo interno (CAI) explicando la sintomatología y cuyo efecto compresivo de los nervios centrales genera un efecto paradójico con la toma de vasodilatadores

show abstract

“…According to a meta-analysis which composed of five case controls, NVC was significantly associated with SSD [10]. Moreover, 91 patients who were studied retrospectively for unexplained unilateral hearing loss or tinnitus had a negative clinical workup, NVC with MRI confirmation could be the culprit [11]. In this case, MRI showed a left-sided NVC of the AICA loop and the left cochlear nerve.…”

Section: Introductionmentioning

confidence: 90%

Single-sided deafness related to neural vascular conflict: A case report from Saudi Arabia

Mona¹

2020

Int J Case Rep Images

View full text Add to dashboard Cite

The impact of single-sided deafness (SSD) is well known, particularly on children. These include difficulties in speech comprehension with background noise, localization, and spatial appreciation. The social and emotional status of the child may be compromised. In addition, parents are keen to understand the etiology and consequences of SSD. Different etiologies are correlated with SSD, and etiology identification is a crucial step toward better management and parent counseling. SSD related to neural vascular conflict (NVC) of the cerebellopontine angle is uncommon. This is the first case, up to my knowledge so far, to be reported in Saudi Arabia. A 13-year-old Saudi girl presented with a history of difficulty in hearing in the left ear, and audiological evaluation demonstrated left-sided profound sensorineural hearing loss. Upon further investigation, magnetic resonance imaging (MRI) showed a left-sided neural vascular conflict of the anterior inferior cerebellar artery (AICA) loop and the left cochlear nerve. In this case, SSD was related to NVC since clinical history, and other investigations did not justify another cause. This report will embrace the role of audiological and radiological investigation, which in turn will help with management recommendations, and help clinicians in dealing with similar challenges.

show abstract

Vascular Loops and Neuro-Otologic Symptoms: Is There Any Correlation?

Cited by 5 publications

References 19 publications

Vascular Loops: The Innocent Bystander for Vestibular Paroxysmia

Vascular Loops: The Innocent Bystander for Vestibular Paroxysmia

Vértigo como presentación clínica de asa vascular de la arteria cerebelosa antero inferior

Single-sided deafness related to neural vascular conflict: A case report from Saudi Arabia

Contact Info

Product

Resources

About