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	Essential Tremor
		Essential tremor is an involuntary, fine shaking of the hand, arms, head and face, especially during routine movements of the body.
		Essential tremor is the most common form of tremor and it is not a serious condition.
		Essential tremor is rhythmic and can range from a moderate to a rapid frequency of 6 to 10 tremors per second.
	www.southerncross.co.nz /index.cfm?D591CC71-FA3F-4484-8363-6EE8BA11BB7E (461 words)

	Essential tremor - Wikipedia, the free encyclopedia
		Essential tremor is a neurological disorder characterized by shaking of hands (and sometimes other parts of the body including the head), evoked by intentional movements.
		Essential tremor is often found in more than one member of a family (familial tremor), in which case it is usually dominant in inheritance, or it may occur with no family history.
		Essential tremor (ET) generally presents as a rhythmic tremor (4-12Hz) that is present only when the affected muscle is exerting effort (i.e., it is not present at rest).
	en.wikipedia.org /wiki/Essential_tremor (1742 words)

	Essential tremor
		Essential tremor (ET), the most common movement disorder, is an insidiously progressive often inheritable disorder usually beginning before the age of 50.
		Tremor is essentially the only symptom present although subtle gait abnormalities may be present when the legs are affected.
		The tremor is invariably worsened with stress, fatigue, and stimulant medications and is significantly improved by small amounts of alcohol.
	www.pdmdcenter.com /articles/essential_Tremor.htm (1764 words)

	Postgraduate Medicine: Hyperkinetic Movement Disorders
		The typical phenotype of essential tremor is a mild symmetric postural tremor of the upper limbs that is accentuated by voluntary movement and on reaching the target (terminal tremor) (2).
		Tremor in patients with essential tremor is worsened by excitement, anger, fatigue, sleep deprivation, anxiety, fear, hunger, and extremes in temperature (7).
		Essential tremor should be suspected in adult patients of any age who present with symmetric postural action tremors of the hands (with or without tremors in other areas) but with no frank cerebellar, pyramidal, or extrapyramidal (parkinsonian) signs.
	www.postgradmed.com /issues/2000/10_00/evidente_tremor.htm (2886 words)

	Essential Tremor / Stereotactic Radiosurgery
		In essential or familial tremor, the hands and arms are usually quiet at rest, but if the patient attempts to perform a task, such as picking up a glass of water or writing, then the tremor becomes very noticeable.
		The only difference between essential tremor and familial tremor is that in the latter, there is a family history with tremor being present in other generations, whereas in essential tremor, there is not.
		In essential tremor, the beta-blocker family of drugs, which includes Inderal (propranolol) and Mysoline (primidone), may be effective.
	www.irsa.org /essential_tremor.html (1836 words)

	Tremor Fact Sheet: National Institute of Neurological Disorders and Stroke (NINDS)
		Tremor is generally caused by problems in parts of the brain that control muscles throughout the body or in particular areas, such as the hands.
		Cerebellar tremor is a slow, broad tremor of the extremities that occurs at the end of a purposeful movement, such as trying to press a button or touching a finger to the tip of one’s nose.
		Cerebellar tremor may be accompanied by dysarthria (speech problems), nystagmus (rapid, involuntary rolling of the eyes), gait problems, and postural tremor of the trunk and neck.
	www.ninds.nih.gov /disorders/tremor/detail_tremor.htm (2531 words)

	Tremor Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
		Tremor is an unintentional, somewhat rhythmic, muscle movement involving to-and-fro movements of one or more parts of the body.
		Essential tremor (sometimes called benign essential tremor) is the most common of the more than 20 types of tremor.The hands are most often affected but the head, voice, tongue, legs, and trunk may also be involved.
		Essential tremor may be treated with propranolol or other beta blockers (such as nadolol) and primidone, an anticonvulsant drug.
	www.ninds.nih.gov /disorders/tremor/tremor.htm (578 words)

	Essential tremor Information on Healthline
		Essential tremor is worsened by the same factors that enhance normal tremors.
		If an essential tremor occurs in more than one member of a family, it is called a familial tremor.
		It appears that essential tremor has some genetic basis, not only because of the hereditary pattern observed in some families, but also because an identical twin (who shares the same genes) of a person with essential tremor is twice as likely as a fraternal twin (who has different genes) to have essential tremor.
	www.healthline.com /adamcontent/essential-tremor (577 words)

	Essential Tremor, Movement Disorders, THE MERCK MANUAL OF HEALTH & AGING
		Essential tremor is a tremor whose cause is unknown.
		Essential tremor also occurs when the limbs are held out from the side.
		Sometimes essential tremor affects the head, causing it to tremble and bob, and the vocal cords, causing the voice to shake.
	www.merck.com /pubs/mmanual_ha/sec3/ch30/ch30e.html (591 words)

	Tremor - October 15, 2003 - American Family Physician
		Enhanced physiologic tremor is a visible, high-frequency postural tremor that occurs in the absence of neurologic disease and is caused by medical conditions such as thyrotoxicosis, hypoglycemia, the use of certain drugs, or withdrawal from alcohol or benzodiazepines.
		Essential tremor is a visible postural tremor of hands and forearms that may include a kinetic component.
		Typically, the tremor is a flexion-extension elbow movement, a pronation-supination of the forearm, or a pill-rolling finger movement.
	www.aafp.org /afp/20031015/1545.html (2896 words)

	Essential Tremors - NeurologyChannel
		Essential tremor is associated with purposeful movement (e.g., holding a glass to drink, shaving, writing, buttoning a shirt).
		Essential tremor is caused by abnormalities in areas of the brain that control movement and does not occur as the result of disease (e.g., Parkinson's disease).
		Diagnosis of essential tremor is based on the observation of symptoms, a thorough medical history, physical examination, and neurological examination.
	www.neurologychannel.com /tremor (395 words)

	Essential Tremor
		The tremor may be a rhythmic ‘back-and-forth’ or ‘to-and-fro’ movement produced by involuntary contractions of the muscle.
		Essential tremor is due to abnormal communication between certain areas of the brain, including the cerebellum, thalamus, and brain stem.
		Essential Tremor is much more common than most neurologic diseases, with the exception of stroke, and is more common than Parkinson’s disease.
	www.dystonia.org.za /essentialtremor.htm (1539 words)

	eMedicine - Essential Tremor : Article by Deborah Burke, MD (Site not responding. Last check: 2007-10-20)
		The tremor is characteristically postural (occurring with voluntary maintenance of a position against gravity) and kinetic (occurring during voluntary movement).
		Cessation or moderate-to-marked improvement in contralateral tremor with improvement in function occurred in 86% of patients with PD, 83% of patients with ET, 67% of patients with cerebellar tremor, and 50% of patients with posttraumatic tremor.
		Tremor was suppressed completely or almost completely in 30 of 33 patients who underwent thalamic stimulation compared to 27 of 34 patients in the thalamotomy group.
	www.emedicine.com /neuro/topic129.htm (5531 words)

	Introduction & Symptoms
		Essential tremor (ET) is a nerve disorder characterized by uncontrollable shaking, or "tremors", in different parts and on different sides of the body.
		The term "tremor" is used to describe the uncontrollable shaking associated with ET, but that's a symptom that can be caused by a multitude of different factors and diseases -- including Parkinson's disease, multiple sclerosis, fatigue after exercise, extreme emotional distress, brain tumors, some prescription drugs, metabolic abnormalities, and alcohol or drug withdrawal.
		Essential tremor is a postural tremor, so symptoms are usually relieved with rest.
	www.webmd.com /content/article/40/4021_105.htm (288 words)

	WE MOVE - Essential Tremor - Diagnosis
		Essential tremor is best diagnosed by a physician who has experience with tremor and movement disorders.
		For example, essential tremor is primarily a postural tremor that is present during activation of affected muscles.
		The severity of arm tremor may be clinically assessed by using a clinical rating scale and by scoring tremor in Archimedes spirals.
	www.wemove.org /et/et_dia.html (636 words)

	Essential Tremor Centralized Brain Repository
		Its goal is the collection and study of brain tissue from patients with essential tremor.
		Essential tremor (ET) is a common neurological disorder, affecting as many as 4% of people over the age of 40 years.
		The tremor typically occurs when the hands are being used (e.g., while writing, while holding a cup) and for this reason, is referred to as an “action tremor”.
	www.essentialtremor.us (279 words)

	Essential Tremor
		I am 69 years of age and have been diagnosed with "Essential Tremor." The shaking I have is in my head and the doctor has put me on the drug Mysoline.
		Essential tremor is also known as "familial tremor," because it often occurs in several members of the family.
		Propranolol is a heart/blood pressure medicine that will decrease the tremor in some people, especially if it is a fast fine tremor with a frequency of about 8 shakes per second.
	healthlink.mcw.edu /article/901214105.html (357 words)

	Essential tremor
		Essential tremor of the hands typically occurs when your hands are in use.
		Essential tremor doesn't cause other health problems, whereas Parkinson's is associated with a stooped posture, slow movement, a shuffling gait, speech problems other than tremor and sometimes memory loss.
		If the effects of essential tremor are making it hard to live your life as fully as you once did, consider joining a support group for people with the disorder.
	www.cnn.com /HEALTH/library/DS/00367.html (1692 words)

	MedlinePlus Medical Encyclopedia: Essential tremor
		Essential tremor is a nerve disorder in which tremors (shakes) occur in a person who is moving or trying to move and no cause can be identified.
		Not only have the tremors been shown to be passed down through families, but an identical twin (who shares the same genes) of a person with essential tremor is twice as likely as a fraternal twin (who has different genes) to have essential tremor.
		An essential tremor is not a dangerous condition, but it may be annoying and embarrassing.
	www.nlm.nih.gov /medlineplus/ency/article/000762.htm (920 words)

	Essential tremor—TheFamily Health Guide
		For an estimated 10 million Americans with a neurological disorder called essential tremor, shaking of their arms and other body parts makes it difficult or even impossible to perform the simplest of movements.
		Most people diagnosed with essential tremor have action tremor, which means they shake when they move, and some develop a distinctive nodding or shaking of the head.
		Essential tremor runs in families; in fact, it's sometimes referred to as familial tremor.
	www.health.harvard.edu /fhg/updates/update1204c.shtml (716 words)

	Tremor - Wikipedia, the free encyclopedia
		Alcoholism, excessive alcohol consumption, or alcohol withdrawal can kill certain nerve cells, resulting in tremor, especially in the hand (conversely, small amounts of alcohol may help to decrease familial and essential tremor, but the mechanism behind this is unknown).
		Tremor in peripheral neuropathy may occur when the nerves that supply the body’s muscles are traumatized by injury, disease, abnormality in the central nervous system, or as the result of systemic illnesses.
		Essential tremor may be treated with propranolol, nadolol or other beta blockers and primidone, an anticonvulsant drug.
	en.wikipedia.org /wiki/Tremor (2101 words)

	Essential Tremor -- eCureMe.com
		A tremor is an involuntary and repetitive shaking of a body part.
		An essential tremor is a neurological disorder characterized by tremors without a noticeable cause.
		Essential tremors rarely involve the legs or feet.
	www.ecureme.com /emyhealth/data/Essential_Tremor.asp (214 words)

	Essential Tremor
		Essential tremor (ET) is a common movement disorder that affects an estimated 5-10 million Americans.
		ET differs from Parkinson disease because tremor is present with voluntary movement and is absent at rest.
		While hand tremor is the most common form of ET, essential tremor may involve the head, voice, arms, and legs.
	www.chg.duke.edu /diseases/et.html (652 words)

	Essential tremor - MayoClinic.com
		Although essential tremor can affect almost any part of your body, trembling occurs most often in your hands, especially when you try to do simple tasks such as drinking a glass of water, tying your shoelaces, writing or shaving.
		Essential tremor is the most common of the many movement disorders.
		Others may find that their tremors make it difficult to work, perform everyday tasks that require fine-motor skills or do the things they enjoy.
	www.mayoclinic.com /health/essential-tremor/DS00367 (300 words)

	National Tremor Foundation - About Tremor - Articles: Essential Tremor
		This "normal" tremor is caused by the interaction of a number of processes such as the heartbeat and minute, spontaneous contractions of muscle fibres.
		Laboratory studies of normal tremor have shown that it is dependent upon peripheral nerve circuits between the muscles and spinal cord (technically known as peripheral reflex feedback).
		Studies on patients with ET have shown that although the peripheral nerves are important in the maintenance of tremor, in the majority of cases the tremor is principally "driven" from a higher level of the nervous system, i.e., the brain itself.
	www.tremor.org.uk /about-articles-et.html (960 words)

	Benign Essential Tremor
		Benign Essential Tremor is a neurologic movement disorder characterized by involuntary fine rhythmic tremor of a body part or parts, primarily the hands and arms (upper limbs).
		Although tremor is typically absent with rest--i.e., when the affected muscle is not voluntary activated--some individuals with advanced disease may develop resting tremors.
		Benign Essential Tremor may appear to occur randomly for unknown reasons (sporadically) or be transmitted as an autosomal dominant trait.
	www.webmd.com /hw/health_guide_atoz/nord140.asp (657 words)

	Essential Tremor treatment at Mayo Clinic
		Essential tremor is diagnosed by ruling out other possible causes.
		At all three Mayo Clinic locations, patients with essential tremor are evaluated and treated by movement disorders specialists from the Neurology and Neurosurgery departments.
		Essential tremor is a neurological disorder that causes tremors (shakes) when a person attempts a purposeful movement.
	www.mayoclinic.org /essential-tremor/index.html (302 words)

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