Related Experiment Video
Updated: Jun 18, 2026
08:43
A Unified Methodological Framework for Vestibular Schwannoma Research
Published on: June 20, 2017
Vestibular schwannoma: when to look for it?
1Department of Audiology, Vejle Hospital, Denmark. juul_gimsing@dadlnet.dk
The Journal of Laryngology and Otology
|November 20, 2009
Summary
This study compared hearing loss in vestibular schwannoma patients versus others. Specific audiometric asymmetry criteria can effectively screen for vestibular schwannoma.
Area of Science:
- Audiology
- Neurology
- Otolaryngology
Background:
- Vestibular schwannoma (VS) diagnosis relies on identifying characteristic audiometric asymmetry.
- Differentiating VS from other causes of asymmetric hearing loss is crucial for timely intervention.
Purpose of the Study:
- To compare audiometric parameters between VS patients and those with non-tumor asymmetric hearing loss.
- To evaluate the efficacy of existing screening protocols for VS detection.
Main Methods:
- Audiometric data from 199 VS patients and 225 non-tumor patients were analyzed.
- Eight established screening protocols were tested on the combined cohort of 424 patients.
Main Results:
- Patients with VS and hearing loss in the unaffected ear showed greater audiometric asymmetry than non-tumor patients.
- Screening protocol sensitivity ranged from 73% to 100%, with a direct correlation between sensitivity and screening rate.
Conclusions:
- Effective VS screening protocols balance sensitivity and the rate of patient screening.
- Recommended criteria include significant asymmetry at neighboring frequencies or specific high-frequency asymmetry, potentially with unilateral tinnitus.
Related Concept Videos
01:15Equilibrium and Balance
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
01:29The Vestibular System
The vestibular system is a set of inner ear structures that provide a sense of balance and spatial orientation. This system is comprised of structures within the labyrinth of the inner ear, including the cochlea and two otolith organs—the utricle and saccule. The labyrinth also contains three semicircular canals—superior, posterior, and horizontal—that are oriented on different planes.
01:22Mitral Valve Prolapse II: Assessment and Management
IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular tachycardia.
01:26Nursing Assessment of the Genitourinary System II: Inspection and Palpation
The nursing assessment of the genitourinary (GU) system involves a systematic inspection and palpation to identify abnormalities in the kidneys, bladder, and surrounding structures.InspectionMouth: Inspect for signs of kidney dysfunction, such as stomatitis (inflammation of the mouth) and ammonia breath, which may occur in advanced kidney disease due to the buildup of urea, breaking down into ammonia.Skin: Check for pallor, which could indicate anemia caused by kidney disease. Look for...
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...