Diagnosis and vestibular rehabilitation from dizziness, disequilibrium, imbalance and other vestibular disorders is offered. Dizziness is one of the most common reasons for a visit to a primary care doctor, but it is not a very descriptive term. It encompasses light-headedness, heavy- headedness, faintness, disorientation, distortion of position in three-dimensional space, turning sensation, spinning sensation, or rocking sensation.
The most common cause of vestibular disorders is the side effect to a medication. However, whenever dizziness is followed by a complete loss of consciousness, serious concerns regarding health of the heart or cardiovascular system need prompt medical attention.
As the ears share the same blood supply as the brain, conditions that restrict blood flow to the brain can lead to dizziness. When dizziness is accompanied by other symptoms such as weakness of an arm or leg, double vision, slurred speech, clumsiness of just one arm or leg, facial numbness or facial weakness, prompt medical attention is warranted.
Vestibular Disorders Section Overview
The Section of Vestibular Disorders provides a comprehensive multi-specialty approach to the diagnosis and treatment of vestibular disorders and balance problems.
The balance system is complex and depends on the integration of visual, inner ear, and sensory information from the joints and muscles. The central nervous system integrates this input and directs the body to maintain balance in relation to the demands of the environment.
Many vestibular disorders and problems affecting the vestibular and balance system can be diagnosed with a complete history and physical exam with one of our specialized physicians. When coming for an appointment, patients are asked to bring any records of previous evaluations including physician’s notes, audiograms (hearing tests), vestibular testing, and physical therapy findings. The actual films of prior neuroimaging studies of the brain and/or neck are reviewed, as well as reports from those studies. Patients complete questionnaires about the severity of their dizziness and their overall medical history.
Patients with vestibular disorders should wear comfortable clothing, since the examination will likely involve some reclining and moving from side to side. Special glasses equipped with tiny, infrared cameras to record eye movements may be used to help measure the function of the balance system during these movements.
Additional testing may be suggested by the physician if the nature of the problem cannot be determined at the initial visit. Two computerized facilities at Cleveland Clinic allow complete vestibular testing to be done rapidly and include tests that evaluate the ability of the inner ear to respond to rotational and positional cues (the visual component of the balance system) and the ability of the brain to combine visual, inner ear, and muscle and joint information from the neck. Hearing evaluation and neural imaging studies, such as magnetic resonance imaging, can be done, if needed for dizziness or vertigo treatment. Vestibular disorder treatment plans can be formulated for implementation on-site or at home, if patients come from a distance.
The multidisciplinary team includes audiologists, nurses, vestibular testing technicians, and physical therapists trained in specific vestibular disorders and balance therapy techniques. Since the section is located within Cleveland Clinic, rapid access to consultation from many other specialists, such as cardiologists, rehabilitation specialists, and surgical neurotologists, is available, if needed.
Please feel free to contact our office prior to your evaluation if you have questions about what to bring or about medications, or if you are coming from a distance and would like the assistance of our medical concierge service in coordinating the details of your visit.
What We Treat
Symptoms that bring patients to the vestibular disorders section include vertigo (the illusion of movement), disequilibrium, staggering, and lightheadedness. Fainting or loss of consciousness is not usually related to the vestibular and balance system. Hearing loss may be an associated symptom. Some of the common disorders diagnosed and treated in the section include:
- Benign positional vertigo or BPV, which can cause brief, intense vertigo reproducible with position change.
- Meniere’s disease, which is an association of more prolonged episodes of vertigo with fluctuating hearing loss.
- Labyrinthitis, which is a viral inflammation of the inner ear causing vertigo lasting for weeks with associated hearing loss.
Additional areas of expertise include migraine-associated dizziness and the cardiovascular system’s interaction with the vestibular system. Active research areas include studies and evidence-based reviews of vertigo treatment and new diagnostic options and for vestibular disorders.
Causes Of Dizziness
Dizziness is a symptom, not a disease. It is a warning signal sent by the body to tell us that something is not functioning properly. Dizziness is defined as a disorientation in space, a sense of unsteadiness, a feeling of movement within the head such as giddiness or a swimming sensation, lightheadedness or a whirling sensation known as vertigo.
For the body to feel balanced, the brain requires input from the inner ear, eyes, muscles and joints. Since mechanisms for maintaining balance are so complex, finding the exact cause of dizziness is often difficult and requires input from several medical specialties. Dizziness can result from problems associated with the inner ear, brain or heart.
Dizziness accounts for 10 million visits to U.S. office-based physicians annually and is the third most common reason for seeing a primary care physician. Dizziness is generally not serious, however, it can be the only sign preceding a major stroke. Inner ear disorders account for the majority of balance problems.
Disorders of the Inner Ear
- This is a problem associated with the fluid balance regulating system in the ear and usually only occurs in one ear.
- The symptoms are tinnitus (ringing in the ear), muffled or distorted hearing, hearing loss and severe attacks of vertigo accompanied by nausea and vomiting.
- Attacks are usually sudden in onset and last from 20 minutes to 24 hours.
- Medical vertigo treatment includes a low-salt diet, a diuretic (water pill) and possible injections of medications into the ear drum or oral medications to combat the nausea.
- Surgery is recommended only if medical treatment is not successful.
- Benign paroxysmal positional vertigo results from damage to the delicate sensory units of the balance portion of the inner ear.
- Symptoms of BPV include a spinning sensation or lightheadedness brought on by changes in head and body position. Nausea may also occur, but hearing loss or tinnitus is not associated with this condition.
- Medication usually is prescribed to relieve symptoms of dizziness and nausea.
- People with BPV achieve total recovery by applying certain balance maneuvers in the office, or by practicing home-based vestibular rehabilitation.
- This condition is caused by the inflammation of the nerve cells in the balance portion of the inner ear.
- The primary symptom is sudden onset of sustained vertigo, which lasts from one to seven days. In most cases, this condition is associated with a viral respiratory infection like the flu or pneumonia.
- Treatment includes medication (orally and sometimes through the ear drum) to relieve symptoms of dizziness and nausea. Surgery is rarely indicated. Significant recovery is achieved after six to eight weeks of home-based balance rehabilitation.
- This is a benign tumor that most commonly grows on the balance nerve.
- Tinnitus is usually the first symptom, after which gradual hearing loss may be experienced. Vertigo is usually not present.
- Acoustic neuroma surgery, which involves removal of the tumor, is the recommended treatment.
Autoimmune Inner Ear Disease
- Similar to Meniere’s Disease, this disorder presents with sudden hearing loss in one or both ears.
- This disorder is more common in people with other autoimmune diseases like lupus or arthritis.
- Medical treatment includes tapered steroid therapy over one to two months and is most effective with early diagnosis if the patient is treated within the first few weeks of diagnosis.
- This disorder may occur after a sudden change in barometric pressure, such as that experienced in airplane landings, scuba diving or a major head injury. The change in pressure can cause a rupture in one of the membranes that separate the middle and inner ear, thus allowing inner ear fluid to escape into the middle ear.
- Symptoms include hearing loss, vertigo or lightheadedness, and ear pressure. Tinnitus also may occur.
- In most cases, the rupture will heal on its own. If it does not heal, surgery may be required.
Dizziness Due to Aging
- As a person grows older, changes occur that affect hearing as well as the system that maintains balance. Forty percent of patients over 60 years old have experienced dizziness severe enough to affect their daily activities.
- The most common symptoms associated with dizziness due to aging include lightheadedness, a spinning sensation, giddiness, wooziness or unsteadiness that occurs when quickly turning or changing positions. One may also sway or veer from side to side when walking.
- Here are a few suggestions that may minimize age-related dizziness:
- When getting up in the morning, sit on the edge of the bed for several minutes before standing.
- Change positions or turn slowly and have something nearby to hold onto.
- Never walk in the dark. Use a night light or turn on the light before entering a dark room.
- Use a cane or walker for more severe walking problems. Walking and exercising help to maintain good balance.
- Keep other medical conditions under control by taking prescribed medications and/or following any prescribed diet.
- If recommended, take advantage of a home-based balance rehabilitation program.
If you are feeling dizzy
If you are feeling dizzy, it is important to see your physician for a thorough evaluation. Included in this evaluation should be:
- A complete medical history
- An audiogram (basic hearing test) and other specialized speech and hearing tests.
- An electronystagmogram or ENG (balance test)
- Two additional and specialized balance tests, rotating chair and posturography.
Depending on what these tests reveal, your physician may recommend a CAT scan (x-ray) or MRI (magnetic resonance imaging). Blood tests to evaluate thyroid function and the immune system also may be recommended, as well as physical therapy evaluation and rehabilitation.
This information is for educational purposes only and should not be relied upon as medical advice. It has not been designed to replace a physician’s independent judgment about the appropriateness or risks of a procedure for a given patient.
What is dizziness?
Dizziness is one of the most common reasons for a visit to a Primary Care Physician. Dizziness is not a very descriptive term; it is one of the vestibular disorders that encompasses lightheadedness, heavyheadedness, faintness or about to pass out, disorientation, distortion of position in three-dimensional space, turning sensation, spinning sensation, or rocking sensation. To some it may seem that they are moving, to others it may seem the world is moving. Sometimes it is a sensation related to imbalance or a sense of an impending fall. Although vertigo has long been used by doctors as a more specific term to describe an inner ear condition, frequently such a distinction can be misleading.
What causes dizziness?
The most common cause of dizziness is the side effect to a medication. The chemical nature of many medications interferes with the neurotransmission in the brain or may drop the blood flow to the brain to critically low levels (hypotension). However, whenever dizziness is followed by a complete loss of consciousness, serious concerns regarding health of the heart or cardiovascular system need prompt medical attention. As the ears share the same blood supply as the brain, conditions that restrict blood flow to the brain can lead to dizziness.
Whenever dizziness is accompanied by other neurological symptoms such as weakness of an arm or leg, double vision, slurred speech, clumsiness of just one arm or leg, facial numbness or facial weakness, serious concerns regarding stroke need prompt medical attention.
These are important instances when dizziness heralds a life-threatening medical problem, and such concerns should be addressed without delay at a local Emergency Room. More commonly, dizziness is simply a sign of something wrong somewhere in the vastly complex vestibular system. Another common cause of dizziness is anxiety, usually closely coupled with other symptoms of fright or panic.
What is the vestibular system?
A complex system composed of sensors in the inner ear (vestibular labyrinth), upper neck (cervical proprioception), eyes (visual motion and tree dimensional orientation), and body (somatic proprioception) analyzed in several areas of the brain (brainstem, cerebellum, parietal and temporal cortex) affecting eyes (vestibulo-ocular reflexes), neck (vestibulo-collic reflexes), and balance (vestibulo-spinal reflexes) and at the same time keeping us apprised of where were are and how were moving through the world (visuospatial orientation). A system this complex deserves to be called a sense, like our sense of hearing, sight, etc. Its complexity befuddles doctors and patients alike.
What are vestibular tests?
A set of laboratory tests done in hospital or clinic that measure the function of various parts of the system individually. Called electronystagmography (ENG) in the past, today advanced technology allows for more comprehensive testing of vestibular disorders.
Videonystagmography (VNG) is a technique to measure the way eyes move in darkness (without the use of electrodes) using video cameras that see in the dark. Positional testing, including the Dix-Hallpike positioning test, can determine the presence of a common vestibular problem, benign paroxysmal positional vertigo (BPPV).
Caloric testing is a way to compare the response of each ear to warming or cooling stimulation. The damaged ear will respond less vigorously or not at all. Rotational chair (SVAR) testing measures the vestibulo-ocular reflex (VOR), providing information on how the brain is responding to the condition of the vestibular labyrinth, how the brain can suppress stimulation of the vestibular labyrinth, and how well the brain senses visual motion with or without stimulation of the vestibular labyrinth. Computerized dynamic platform posturography (CDPP) testing can assess postural stability.
What is vestibular rehabilitation?
Physical therapy that promotes neurological adaptation required to restore the vestibular sense. A vestibular rehabilitation therapist assesses specific lost abilities and vestibular disorders, then teaches exercises to be done on a daily basis to recover those lost abilities, without the use of medications.
During 6-8 weekly therapy sessions, new exercises are assigned to reach increasingly complex levels of vestibular function. A similar process is used by dancers, skaters, gymnasts, and fighter pilots to maintain a higher level of vestibular fitness necessary for their daily activities. A vestibular rehabilitation therapist is the coach necessary to complete the process in patients with vestibular disorders.
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