Publications by authors named "Courtney Voelker"

Auditory perception is established through experience-dependent stimuli exposure during sensitive developmental periods; however, little is known regarding the structural development of the central auditory pathway in humans. The present study characterized the regional developmental trajectories of the ascending auditory pathway from the brainstem to the auditory cortex from infancy through adolescence using a novel diffusion MRI-based tractography approach and along-tract analyses. We used diffusion tensor imaging (DTI) and neurite orientation dispersion and density imaging (NODDI) to quantify the magnitude and timing of auditory pathway microstructural maturation.

View Article and Find Full Text PDF
Article Synopsis
  • This study explores the outcomes and management of pediatric auditory brainstem implantation (ABI) for children with severe inner ear malformations, aiming to unify clinical practices and address current challenges.
  • A systematic review of relevant findings from the Third International Pediatric ABI Symposium analyzed data from multiple countries, highlighting trends in auditory outcomes, surgical approaches, and rehabilitation strategies.
  • Key conclusions emphasize the need for standardized guidelines and improved collaboration among healthcare professionals to enhance patient outcomes and guide future research in this specialized field.
View Article and Find Full Text PDF

Auditory perception is established through experience-dependent stimuli exposure during sensitive developmental periods; however, little is known regarding the structural development of the central auditory pathway in humans. The present study characterized the regional developmental trajectories of the ascending auditory pathway from the brainstem to the auditory cortex from infancy through adolescence using a novel diffusion MRI-based tractography approach and along-tract analyses. We used diffusion tensor imaging (DTI) and neurite orientation dispersion and density imaging (NODDI) to quantify the magnitude and timing of auditory pathway microstructural maturation.

View Article and Find Full Text PDF

Objective: Assess the association between cannabis use and tinnitus in a nationally representative sample of US adults.

Study Design: Cross-sectional.

Setting: Population-based.

View Article and Find Full Text PDF

Objectives: To investigate the differential factors associated with physician satisfaction between telemedicine and in-person visits in otolaryngology.

Methods: Study data included 646 telemedicine and 365 in-person encounters delivered from May-June 2020 at a tertiary center outpatient setting. Encounter-specific physician satisfaction was rated by 15 otolaryngologists using Provider Satisfaction Questionnaire (range 0-100) consisted of 5 items (patient needs addressed, patient involvement, adequacy of information given, quality of emotion support provided, and general interaction satisfaction).

View Article and Find Full Text PDF

Many congenital ossicular chain malformations exist, usually involving ossicular deformities, fixation, absence, or discontinuity. Duplication of ossicles has not been reported, much less a duplicated ossicle located in the mastoid. We present a case of a patient who had a duplicated incus in the mastoid antrum.

View Article and Find Full Text PDF

Objectives/hypothesis: To formally document online support community (OSC) use among patients with vestibular symptoms and gain an appreciation for the perceived influence of participation on psychosocial outcomes and the impact on medical decision-making.

Study Design: Self reported internet-based questionnaire.

Methods: The Facebook search function was paired with a comprehensive list of vestibular diagnoses to systematically collect publicly available information on vestibular OSCs.

View Article and Find Full Text PDF

Objectives: A previous study demonstrated low rates of high-frequency hearing loss and noise exposure among Asian Americans (AAs). This study examined the prevalence of tinnitus and associated factors among AAs using the first nationally representative sample of AAs.

Study Design: Cross-sectional analysis of a national health survey.

View Article and Find Full Text PDF

Objective This update of a 2008 guideline from the American Academy of Otolaryngology-Head and Neck Surgery Foundation provides evidence-based recommendations to benign paroxysmal positional vertigo (BPPV), defined as a disorder of the inner ear characterized by repeated episodes of positional vertigo. Changes from the prior guideline include a consumer advocate added to the update group; new evidence from 2 clinical practice guidelines, 20 systematic reviews, and 27 randomized controlled trials; enhanced emphasis on patient education and shared decision making; a new algorithm to clarify action statement relationships; and new and expanded recommendations for the diagnosis and management of BPPV. Purpose The primary purposes of this guideline are to improve the quality of care and outcomes for BPPV by improving the accurate and efficient diagnosis of BPPV, reducing the inappropriate use of vestibular suppressant medications, decreasing the inappropriate use of ancillary testing such as radiographic imaging, and increasing the use of appropriate therapeutic repositioning maneuvers.

View Article and Find Full Text PDF

The American Academy of Otolaryngology-Head and Neck Surgery Foundation has published a supplement to this issue of Otolaryngology-Head and Neck Surgery featuring the "Clinical Practice Guideline: Benign Paroxysmal Positional Vertigo (Update)." To assist in implementing the guideline recommendations, this article summarizes the rationale, purpose, and key action statements. The 14 recommendations developed emphasize diagnostic accuracy and efficiency, reducing the inappropriate use of vestibular suppressant medications, decreasing the inappropriate use of ancillary testing, and increasing the appropriate therapeutic repositioning maneuvers.

View Article and Find Full Text PDF

Objective: Compare the dynamic visual acuity test (DVAT) and gaze stabilization test (GST) in patients with unilateral vestibular loss (UVL) and healthy control subjects using a novel computerized testing system prototype.

Study Design: Cross-sectional study.

Setting: Tertiary academic referral laboratory.

View Article and Find Full Text PDF

Objective: To evaluate the safety and efficacy of intratympanically injected golimumab (GLM), a TNF-α inhibitor, as a steroid-sparing agent for patients with steroid-dependent autoimmune inner ear disease (AIED).

Study Design: Open label.

Setting: Tertiary referral center.

View Article and Find Full Text PDF

Sensory hair cell loss is the major cause of hearing and balance disorders. Mammals are incapable of sustained hair cell regeneration, but lower vertebrates can regenerate these mechano-electrical transducers. We present the first comprehensive transcriptome (by mRNA-Seq) of hair cell regeneration in the chick utricle.

View Article and Find Full Text PDF

We present video of gross-total resection of a large cerebellopontine angle tumor consisting of both vestibular and facial schwannoma components via the translabyrinthine route in a patient with neurofibromatosis type 2. The facial nerve is reconstructed using a greater auricular nerve graft, and an auditory brainstem implant is placed. Prior to surgery the patient had no facial nerve function on the operative side and had lost useful hearing.

View Article and Find Full Text PDF

Conjunctive consolidation, one method of multivariable analysis by arranging data into clusters, is intuitive and transparent. An unexpected consequence in writing this article was the discovery of just how useful it is in critically analyzing articles and in designing new projects. It has stimulated a fresh understanding as to the value of multivariable thinking in all clinical research.

View Article and Find Full Text PDF

Multivariable analyses are complex statistical methods to evaluate the impact of multiple variables on outcomes of interest. Books have been written on each of these methods detailing the mathematical and statistical objectives and processes. However, we have found very little in the way of brief reports that help the nonstatistically trained physician obtain a basic understanding of multivariable analyses in order to have some understanding of the increasing literature using these methods.

View Article and Find Full Text PDF

The primary objective of graphing research data is to communicate key information visually in a rapid, accurate, and concise way. Graphs might be considered visual take-home lessons of the major point(s) of the manuscript. In choosing a graph, it is tempting to concentrate only on ways of illustrating summary statements characterizing the group(s).

View Article and Find Full Text PDF

Surveys with questionnaires play a vital role in decision and policy making in society. Within medicine, including otolaryngology, surveys with questionnaires may be the only method for gathering data on rare or unusual events. In addition, questionnaires can be developed and validated to be used as outcome measures in clinical trials and other clinical research architecture.

View Article and Find Full Text PDF

In 1958, Edward L. Kaplan and Paul Meier collaborated to publish a seminal paper on how to deal with incomplete observations. Subsequently, the Kaplan-Meier curves and estimates of survival data have become a familiar way of dealing with differing survival times (times-to-event), especially when not all the subjects continue in the study.

View Article and Find Full Text PDF

A systematic review is a transparent and unbiased review of available information. The published systematic review must report the details of the conduct of the review as one might report the details of a primary research project. A meta-analysis is a powerful and rigorous statistical approach to synthesize data from multiple studies, preferably obtained from a systematic review, in order to enlarge the sample size from smaller studies to test the original hypothesis and/or to generate new ones.

View Article and Find Full Text PDF

The 95 percent confidence interval about the mean demarcates the range of values in which the mean would fall if many samples from the universal parent population were taken. In other words, if the same observation, experiment, or trial were done over and over with a different sample of subjects, but with the same characteristics as the original sample, 95 percent of the means from those repeated measures would fall within this range. This gives a measure of how confident we are in the original mean.

View Article and Find Full Text PDF

Objective: In a busy practice, time is a commodity in rare supply, and keeping abreast of the relevant medical literature is a daunting task. Even after reading an article carefully, important information may be lost because of undue attention to the methodological minutia.

Method: Fundamental to reducing a complex article into a well-organized and consistent format is the technique of quantitatively diagramming the principal components in the design and findings of the study.

View Article and Find Full Text PDF