Dizziness/Vertigo
medical conditions

Dizziness/Vertigo

Explore the available health information, treatment context, and integrative evidence for Dizziness/Vertigo.

Risk Factors and Causes
  • Vertigo refers to the sensation of spinning or the perception that surrounding objects are moving or spinning. Some individuals describe a feeling of being pulled toward the floor or toward one side of the room. Moving the head, changing position, and turning while lying down often worsen vertigo.
  • The sudden onset of vertigo usually indicates a peripheral vestibular disorder (such as benign paroxysmal positional vertigo, Meniere's disease, and vestibular neuritis).
  • Symptoms of benign paroxysmal positional vertigo (BPPV) usually last a few seconds to a few minutes and come and go. They also may include lightheadedness, imbalance, and nausea, usually as a result of a change in position (such as when rolling over in bed or getting out of bed). Symptoms of Meniere's disease and vestibular neuritis include vertigo, hearing loss, ringing in the ears (tinnitus), and ear pressure that often last hours to days.
  • Peripheral vestibular disorders also may cause the following symptoms: blurred vision; fatigue and reduced stamina; headache; heart palpitations or arrhythmias (rapid fluttering of the heart); imbalance; inability to concentrate; increased risk for motion sickness; muscle ache (especially of the neck and back); nausea and vomiting; reduced cognitive function (including thinking and memory); sensitivity to bright lights and noise; and increased sweating.
  • Vertigo caused by a central vestibular disorder usually develops gradually. Central vestibular disorders are usually caused by underlying health conditions, such as stroke or migraine. These central vestibular disorders may cause symptoms including: double vision (diplopia); headache (may be severe); impaired consciousness; inability to speak due to muscle impairment (dysarthria); lack of coordination; nausea and vomiting; and weakness.
Signs and Symptoms
  • Vertigo refers to the sensation of spinning or the perception that surrounding objects are moving or spinning. Some individuals describe a feeling of being pulled toward the floor or toward one side of the room. Moving the head, changing position, and turning while lying down often worsen vertigo.
  • The sudden onset of vertigo usually indicates a peripheral vestibular disorder (such as benign paroxysmal positional vertigo, Meniere's disease, and vestibular neuritis).
  • Symptoms of benign paroxysmal positional vertigo (BPPV) usually last a few seconds to a few minutes and come and go. They also may include lightheadedness, imbalance, and nausea, usually as a result of a change in position (such as when rolling over in bed or getting out of bed). Symptoms of Meniere's disease and vestibular neuritis include vertigo, hearing loss, ringing in the ears (tinnitus), and ear pressure that often last hours to days.
  • Peripheral vestibular disorders also may cause the following symptoms: blurred vision; fatigue and reduced stamina; headache; heart palpitations or arrhythmias (rapid fluttering of the heart); imbalance; inability to concentrate; increased risk for motion sickness; muscle ache (especially of the neck and back); nausea and vomiting; reduced cognitive function (including thinking and memory); sensitivity to bright lights and noise; and increased sweating.
  • Vertigo caused by a central vestibular disorder usually develops gradually. Central vestibular disorders are usually caused by underlying health conditions, such as stroke or migraine. These central vestibular disorders may cause symptoms including: double vision (diplopia); headache (may be severe); impaired consciousness; inability to speak due to muscle impairment (dysarthria); lack of coordination; nausea and vomiting; and weakness.
Diagnosis
  • It is important for a doctor to diagnose the cause of vertigo (dizziness) as quickly as possible to rule out serious conditions such as cardiovascular disease, stroke, hemorrhage, or tumor.
  • In trying to determine the cause of vertigo, a doctor may ask if the dizziness: causes the room to spin or produces a sensation of motion; is associated with a feeling of faintness or lightheadedness; or causes the individual to lose balance.
  • Physical examination includes measuring blood pressure and heart rate. Neurological examination includes testing facial and vestibular nerves and muscles, strength, coordination, balance, and walking (gait).
  • The positional vertigo test is used to help distinguish peripheral from central vestibular disorders. In this test, the individual sits on a table with the head turned to the side. The doctor then supports the head and lowers it gently below the table while the individual lies back. The individual reports symptoms of vertigo while the doctor looks for circular movement of the eyes (called nystagmus). A delay between the onset of nystagmus and the sensation of vertigo usually indicates a peripheral vestibular disorder. Lack of a delay may indicate a central vestibular disorder. The test is repeated with the head turned in the opposite direction.
  • Electronystagmography (ENG): Electronystagmography (ENG) is a neurological test used to evaluate the vestibular system. ENG involves testing hearing in both ears (audiometry tests), testing eye movements, and evaluating responses to changes in posture and position. In a darkened room, recording electrodes are placed near the eyes. Warm and cool water or air is gently introduced into each ear canal. Since the eyes and ears work in coordination through the nervous system, measurement of eye movements can be used to test the balance system. In about 50% of individuals, the balance function is reduced in the affected ear. Rotational testing or balance platform may also be performed to evaluate the balance system.
  • Blood tests: Blood tests include a complete blood count (CBC) and kidney and thyroid panels to rule out systemic diseases (such as kidney disease or thyroid disorders). If the individual is taking medications (such as aminoglycosides or anticonvulsants), drug levels are obtained.
  • Imaging tests: Imaging tests may be used to detect brain abnormalities (such as stroke or tumor). A magnetic resonance imaging (MRI) test uses a magnetic field and radio waves to create cross-sectional images of the head and body. A doctor can use these detailed, clear images to identify and diagnose a wide range of conditions that may cause vertigo.
Complications
  • Severe vertigo can be disabling and may result in complications such as irritability, loss of self-esteem, depression, negative effects on work performance and quality of life, and injuries from falls. Falls are the leading cause of serious injury in people over the age of 65.
  • Experiencing dizziness while driving a car or operating heavy machinery can increase the likelihood of an accident.
  • Dizziness may also lead to nausea and vomiting.
Treatment
  • Treatment for vertigo, or dizziness, depends on identifying and eliminating the underlying cause. If a particular medication is responsible for the condition, lowering the dosage or discontinuing the drug may eliminate vertigo.
  • Endolymphatic sac procedures: Endolymphatic sac procedures are surgical procedures that reduce the swelling caused by endolymph (an inner ear fluid) buildup. In endolymphatic sac decompression, some of the bone surrounding the inner ear is removed. In some cases, endolymphatic sac decompression is coupled with the placement of an endolymphatic shunt, a tube that drains excess fluid from the inner ear. Another surgical approach called a sacculotomy involves implanting a permanent, tack-like device that allows endolymph to drain out of the inner ear whenever pressure builds up.
  • If vertigo appears without warning, the individual should not drive. Failure to control the vehicle may be hazardous to the individual and others. It is also best to avoid activities that require balance such as climbing ladders, scaffolds, and swimming (due to the possibility of drowning).
  • Labyrinthectomy: A labyrinthectomy removes the entire inner ear sense organ (vestibular labyrinth). The operation may be an option if antibiotic injections do not help and the individual has near-total or total hearing loss in the affected ear.
  • Lifestyle changes: Healthcare professionals recommend that individuals with conditions causing vertigo to: avoid caffeine, smoking, and alcohol; get regular sleep; eat a healthy diet, including fresh fruits and vegetables and limiting meats and fatty foods; and avoid foods that contain MSG or monosodium glutamate. Prepackaged food products and Chinese foods include MSG, which contains sodium. MSG can contribute to fluid retention and worsen symptoms. Stress may aggravate vertigo. Stress avoidance or counseling may be advised.
  • Medications: A low salt diet and a prescription diuretic, or water pill (such as hydrochlorothiazide), may reduce the frequency of attacks of dizziness in some individuals. Because diuretic medications cause the individual to urinate more frequently, their body may become depleted of certain minerals, such as potassium. Healthcare providers may recommend taking a potassium supplement or eating three or four extra servings of potassium-rich foods a week, such as bananas.
  • A middle ear injection consists of a healthcare professional injecting gentamicin (Garamycin®, a toxic antibiotic) in the inner ear, through the eardrum and into the inner ear. The gentamycin can now be absorbed. This reduces the balancing function of the individual's ear, and their other ear assumes responsibility for balance. The procedure, which can be performed with local anesthesia in a doctor's office, often reduces the frequency and severity of vertigo attacks.
  • Middle ear injections with a steroid, such as dexamethasone (Decadron®), may also help control vertigo attacks in some individuals. Although dexamethasone injections may be slightly less effective than gentamicin, dexamethasone is less likely than gentamicin to cause further hearing loss.
  • Anti-vertigo medications, such as meclizine (Antivert®), may provide temporary relief from vertigo. Anti-nausea medication is sometimes prescribed, such as prochlorperazine (Compazine®). Anti-anxiety drugs, such as alprazolam (Xanax®), may also be used if the individual has vertigo due to anxiety. Anti-vertigo, anti-nausea, and anti-anxiety medications may cause drowsiness. Alprazolam is in a class of drugs called benzodiazepines. These medications may cause physical and psychological addiction.
  • Anticholinergic medications may also be used to decrease dizziness. These drugs include scopolamine patches (Transderm Scop®).
  • Surgery: If the vertigo attacks are severe and debilitating and medical treatments do not help, surgery may be an option. A myringotomy is a surgical procedure that may be used to treat chronic ear infections. In this procedure, which is performed under anesthesia, an incision is made in the eardrum and a small tube is placed in the opening to prevent fluid and bacteria from building up inside the ear.
  • Vestibular neurectomy: A vestibular neurectomy involves cutting the nerve that controls balance (vestibular nerve). When intense vertigo is experienced, a vestibular neurectomy may be done to surgically destroy the entire inner ear. The individual's other ear then takes over the balance function.
  • Vestibular rehabilitation therapy: Vestibular rehabilitation therapy (VRT) is a type of physical therapy used to treat vertigo. The goal of treatment is to minimize dizziness, improve balance, and prevent falls by restoring normal function of the vestibular system. In VRT, the individual performs exercises designed to allow the brain to adapt to and compensate for whatever is causing the vertigo. The success of this treatment depends on several factors including the following: age of the patient (the younger the individual, the more responsive to treatment); cognitive function (such as memory and the ability to follow directions in order); coordination and motor skills; overall health of the individual (including the central nervous system); and physical strength.
Prevention
  • Healthcare professionals recommend that if an individual is susceptible to vertigo (dizziness), they should: be aware of the possibility of losing balance, which can lead to falling and serious injury. Patients are directed to sit or lie down immediately when feeling dizzy; avoid driving a car or operating heavy machinery if experiencing frequent dizziness; use good lighting when getting out of bed at night; walk with a cane for stability; and avoid using caffeine, alcohol, and tobacco. Excessive use of these substances can constrict blood vessels and worsen signs and symptoms. Always work closely with a doctor to manage symptoms effectively. A doctor or pharmacist can also advise the individual about certain medications that may cause dizziness.
References
  1. American Academy of Family Physicians. . Accessed March 22, 2009.
  2. American Academy of Otolaryngology - Head and Neck Surgery. . Accessed March 22, 2009.
  3. American Hearing and Research Foundation. . Accessed March 22, 2009.
  4. Barozzi S, Di Berardino F, Arisi E, et al. A comparison between oculomotor rehabilitation and vestibular electrical stimulation in unilateral peripheral vestibular deficit. Int Tinnitus J. 2006;12(1):45-9.
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  5. Cakir BO, Ercan I, Cakir ZA, et al. Efficacy of postural restriction in treating benign paroxysmal positional vertigo. Arch Otolaryngol Head Neck Surg. 2006;132(5):501-5.
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  6. Middleton ET, Steel SA. The effects of short-term hormone replacement therapy on long-term bone mineral density. Climacteric. 2007;10(3):257-63.
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  7. Natural Standard: The Authority on Integrative Medicine. . Copyright © 2009. Accessed March 22, 2009.
  8. Pytel J, Nagy G, Toth A, et al. Efficacy and tolerability of a fixed low-dose combination of cinnarizine and dimenhydrinate in t he treatment of vertigo: a 4-week, randomized, double-blind, active- and placebo-controlled, parallel-group, outpatient study. Clin Ther. 2007;29(1):84-98.
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  9. Venosa AR, Bittar RS. Vestibular rehabilitation exercises in acute vertigo. Laryngoscope. 2007;117(8):1482-7.
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