![]() ![]() They also specified that for diagnostic purposes, at least three years should pass without other neurological symptoms showing up that may suggest the presence of a condition or disease beyond solely essential tremor. They excluded isolated focal (one location) tremors of the voice, head, task- and position-specific tremors from being classified as ET. The task force that developed the statement defined ET as a “tremor syndrome of bilateral upper limb action tremor with or without tremor in other locations (e.g., head, voice, lower limbs) …” in absence of any other neurological disorder. Part of their purposes was to help with clinical diagnosis, since ET is initially misidentified all too often. In January, 2018 the International Parkinson and Movement Disorder Society published a consensus statement that classified tremors according to their characteristics. Or, it may be seen as “isolated voice tremor.” However, other neurological disorders such as Parkinson’s disease can also cause voice tremor. This is called voice tremor, and is as much a movement disorder as shaking hands. In addition to hands, ET can also affect the larynx (the hollow muscular organ in the throat that holds the vocal cords), soft palate, base of the tongue, other muscles of the throat and breathing musculature with the result of a quivery voice. Essential tremor (ET) is most commonly apparent as uncontrollable shaking of the hands, especially during deliberate movement. ![]()
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