TY - JOUR T1 - Essential tremor JF - Canadian Medical Association Journal JO - CMAJ SP - 1559 LP - 1565 VL - 124 IS - 12 AU - T. J. Murray Y1 - 1981/06/15 UR - http://www.cmaj.ca/content/124/12/1559.abstract N2 - Essential tremor, including the juvenile and senile variations, may be a result of a disorder of the servomechanism that controls physiologic tremor. Hands and arms are affected most commonly, and the tremor can vary in amplitude as well as frequency. Long-term treatment with propranolol has been helpful for some patients, although older patients are less likely to benefit. Other drugs and behaviour modification therapy have been less successful. Surgical treatment is effective but should probably be reserved for severe cases. An effective instrument for measuring the subjective and objective aspects of the tremor is still needed, as is an effective long-term method of treatment. ER -