enhancing-electrode-location-assessment-cochlear-implantation-via

Enhancing Electrode Location Assessment in Cochlear Implantation <em>via</em> Computed Tomography Image Fusion

This study aimed to determine whether fusing pre-&#160;and post-operative computed tomography (CT) images could help in assessing electrode placement and ...

Jouf University

Hemangioma is a common soft tissue tumor that can be categorized mainly into cavernous, capillary, and venous subtypes. It usually develops in the head and neck and rarely in the external auditory canal (EAC).

Clinical Approaches To External Auditory Canal Hemangiomas: A Systematic Review.

To estimate the incidence of brain abnormalities in a cohort of prelingually deaf children and whether these abnormalities can impact the hearing outcomes of patients eligible for cochlear implantation (CI).

Brain MRI findings of prelingually deaf children and cochlear implant outcome: Preliminary results.

The mathematical equations to estimate cochlear duct length (CDL) using cochlear parameters such as basal turn diameter (A-value) and width (B-value) are currently applied for cochleae with two and a half turns of normal development. Most of the inner ear malformation (IEM) types have either  less than two and a half cochlear turns or have a cystic apex, making the current available CDL equations unsuitable for cochleae with abnormal anatomies. Therefore, this study aimed to estimate the basal turn length (BTL) from the cochlear parameters of different anatomical types, including normal anatomy; enlarged vestibular aqueduct; incomplete partition types I, II, and III; and cochlear hypoplasia. The lateral wall was manually tracked for 360° of the angular depth, along with the A and B values in the oblique coronal view for all anatomical types. A strong positive linear correlation was observed between BTL and the A- (r = 0.74) and B-values (r = 0.84). The multiple linear regression model to predict the BTL from the A-and B-values resulted in the following equation (estimated BTL = [A × 1.04] + [B × 1.89] - 0.92). The manually measured and estimated BTL differed by 1.12%. The proposed equation could be beneficial in adequately selecting an electrode that covers the basal turn in deformed cochleae.

Method to estimate the basal turn length in inner ear malformation types.

Hemangioma is a frequently observed soft tissue tumor that can be classified into cavernous, capillary, and venous subtypes. It occurs frequently in the head and neck; however, with rare reports of hemangiomas in the external auditory canal (EAC). The present study describes the case of a 57-year-old male patient who presented to our center with a subsequent diagnosis of capillary hemangioma of the EAC. The entire lesion was surgically removed, with no evidence of recurrence on the subsequent follow-up.

Capillary Hemangioma Involving the External Auditory Canal: Case Report and Review of the Literature.

Sinusitis is a common condition with various forms and different etiologies. In the era of COVID-19, a large number of studies covered the association between sinusitis and COVID-19, while others reported the impact of COVID-19 on the development of acute invasive fungal rhinosinusitis (AIFR), together with the most commonly associated predisposing factors. Fungal sinusitis, particularly AIFR, can be life-threatening. It is important to dissect this association and improve current evidence and management. Therefore, we conducted this literature review to highlight the association between COVID-19 and sinusitis based on evidence from the available studies in the literature. Evidence shows that chronic sinusitis might have a negative impact on COVID-19 outcomes. However, current results are conflicting, and further studies are needed. On the other hand, COVID-19 can also cause olfactory dysfunction, which is usually temporary. In addition, we found several studies that indicated the association between COVID-19 and AIFR. The condition is usually associated with severe morbidities, as affected patients are usually immunocompromised, including those with uncontrolled diabetes, malignancy, immunosuppression, AIDS, the administration of chemotherapy and other immunosuppressive drugs, and COVID-19.

Epidemiological Characteristics, Pathogenesis and Clinical Implications of Sinusitis in the Era of COVID-19: A Narrative Review.

To systematically review the outcomes of early activation following cochlear implantation (CI) based on the findings from different studies in the literature.

Early activation after cochlear implantation: a systematic review.

 The present literature review discusses the chronological evolution of Cochlear Implant (CI) activation and its definition among the relevant studies in the literature. In addition, the benefits of standardizing the early activation process in implantation centers worldwide are discussed.  A comprehensive literature search was conducted in the major databases such as PubMed, Scopus, and Embase to retrieve all the relevant articles that reported early activation approaches following CI.  The evolution of the timing of early activation after CI has been remarkable in the past few years. Some studies reported the feasibility of early activation 1 day after the CI surgery in their users.  Within the last decade, some studies have been published to report the feasibility and outcomes of its early activation. However, the process of early activation was not adequately defined, and no apparent guidelines could be found in the literature.

A Literature Review on Cochlear Implant Activation: From Weeks to Hours.

To systematically review the prevalence and risk factors of inadvertent facial nerve stimulation (FNS) after cochlear implant (CI) surgery. And to report the different management strategies used for reducing and resolving FNS.

Risk factors and management strategies of inadvertent facial nerve stimulation in cochlear implant recipients: A systematic review.

The indications of Vibrant Soundbridge (VSB) have been expanded to include patients with conductive and mixed hearing loss due to congenital aural atresia (CAA). However, the current evidence supporting the auditory outcomes of VSB is based mainly on case reports and retrospective chart reviews. Therefore, the present systematic review aims to summarize and critically appraise the current evidence regarding the safety and effectiveness of VSB in children and adult patients with CAA.

Efficacy of vibrant sound bridge in congenital aural atresia: an updated systematic review.

Estimation of cochlear length is gaining attention in the field of cochlear implants (CIs), mainly for selecting of CI electrode lengths. The currently available tools to estimate the cochlear duct length (CDL) are only valid for normal inner anatomy. However, inner ear malformation (IEM) types are associated with different degrees of cystic apices, limiting the application of CDL equations of normal anatomy inner ear. Therefore, this study aimed to understand the degree to which the outer wall (OW) is observed in different malformation types and to formulate mathematical equations to estimate the OW length (OWL) from cochlear parameters, namely the basal turn diameter (A-value) and width (B-value). Three-dimensional (3D) segmentation of promontory and fluid parts of the inner ear was performed to understand the extent to which the OW is visible to measure the OWL manually. Enlarged vestibular aqueduct syndrome (EVAS) was diagnosed in 37 ears, which consistently showed the extent of the OW to an angular depth of 540°, beyond which the cystic apex starts. Incomplete partition (IP) type I was observed in 30 ears, with the OW extending to only 360° of angular depth. IP type II was observed in 35 ears, with the OW extending to 450° of angular depth. IP type III was identified in 24 ears, with the OW observed for 540° of angular depth. Cavity-type malformations were observed in 36 ears, and circumference was measured in the axial view. A strong positive linear correlation was observed between the manually measured OWL and cochlear parameters for all malformation types analyzed. A multiple linear regression model was applied to formulate mathematical equations, which was further used to create a software application for estimating OWLs in IEM types, using cochlear parameters as inputs.

Article	Year
Clinical Approaches To External Auditory Canal Hemangiomas: A Systematic Review. Ear, nose, & throat journal\| PubMed ID: 34427123	2024
Brain MRI findings of prelingually deaf children and cochlear implant outcome: Preliminary results. International journal of pediatric otorhinolaryngology\| PubMed ID: 36122419	2022
Method to estimate the basal turn length in inner ear malformation types. Scientific reports\| PubMed ID: 36604454	2023
Capillary Hemangioma Involving the External Auditory Canal: Case Report and Review of the Literature. Ear, nose, & throat journal\| PubMed ID: 36718936	2023
Epidemiological Characteristics, Pathogenesis and Clinical Implications of Sinusitis in the Era of COVID-19: A Narrative Review. Journal of asthma and allergy\| PubMed ID: 36733455	2023
Early activation after cochlear implantation: a systematic review. European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery\| PubMed ID: 37097468	2023
A Literature Review on Cochlear Implant Activation: From Weeks to Hours. Ear, nose, & throat journal\| PubMed ID: 37551795	2023
Risk factors and management strategies of inadvertent facial nerve stimulation in cochlear implant recipients: A systematic review. Laryngoscope investigative otolaryngology\| PubMed ID: 37899846	2023
Efficacy of vibrant sound bridge in congenital aural atresia: an updated systematic review. European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery\| PubMed ID: 38647685	2024
Estimation of outer-wall length in optimizing cochlear implantation in malformed inner ears. Scientific reports\| PubMed ID: 39516527	2024

Afrah Alshalan

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