Related Experiment Video
Updated: Jul 8, 2026
06:30
Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
Published on: April 28, 2020
[Positional vertigo. Symptom, clinical sign, or disease?]
Gabriel Trinidad Ruiz1, María Asunción Pons García, Germán Trinidad Ruiz
1Unidad de Otoneurología, Servicio de Otorrinolaringología, Complejo Hospitalario Universitario de Badajoz, Badajoz, España. gtrinidad@gmail.com
Acta Otorrinolaringologica Espanola
|January 25, 2008
Summary
Accurate diagnosis of benign paroxysmal positional vertigo (BPPV) relies on thorough patient history and specific diagnostic maneuvers. While history is helpful, specialized testing is crucial for correct BPPV classification and treatment.
Area of Science:
- Otolaryngology
- Neurology
- Vestibular Disorders
Context:
- Assessing diagnostic accuracy for position-triggered vertiginous syndromes.
- Comparing diagnoses of benign paroxysmal positional vertigo (BPPV) in primary care versus specialized otoneurology units.
Purpose:
- To evaluate the differences in BPPV diagnosis between primary care and otoneurology units.
- To determine the diagnostic value of patient history versus diagnostic maneuvers for BPPV.
Summary:
- A prospective study of 432 patients found that only 52.8% of preliminary BPPV diagnoses matched the definitive diagnosis.
- A positional trigger was reported by 50.23% of patients, and 78% of BPPV cases had a history of positional vertigo.
- Provoking maneuvers were performed in only 4.7% of BPPV cases diagnosed at the otoneurology unit, highlighting a gap in diagnostic practice.
Impact:
- Highlights the importance of detailed patient history and specific diagnostic maneuvers for accurate BPPV diagnosis.
- Suggests a need for improved training and adherence to diagnostic protocols for BPPV in clinical practice.
- Emphasizes that while patient history is valuable, definitive diagnosis and appropriate treatment of BPPV depend on specific clinical assessments.
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.
01:11Pyloric Obstruction
Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
01:22Pathophysiology of Vomiting
Vomiting is a complex physiological response to expel harmful or irritating substances from the body. It's a defensive mechanism triggered by stimuli like poisons, microbial toxins, cytotoxic drugs, and mechanical abdominal distension. The process is centrally coordinated by the vomiting (or emetic) center located in the medulla of the brainstem. This area, rich in muscarinic M1, histamine H1, neurokinin 1 (NK1), and serotonin 5-HT3 receptors, coordinates the act of vomiting through interaction...
01:21Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...