![]() This review summarizes the strengths and limitations of TETRAS and provides guidelines for its use by individuals and by commercial entities. TETRAS was therefore developed in a series of several modifications and validation exercises, and it was ultimately published in 2012 3. Until then, the most widely used scale was the Fahn-Tolosa-Marín scale (FTM) 1, which had undergone limited validation in essential tremor (ET) 2 and which has upper extremity tremor amplitude anchors that are too low for severe ET. The Tremor Research Group (TRG) in the United States (began developing the Essential Tremor Rating Assessment Scale (TETRAS) in 2003. Therefore, the Essential Tremor Rating Assessment Scale is better suited for assessment of severe essential tremor. ![]() In the Fahn-Tolosa-Marín tremor rating scale, upper extremity tremor greater than 4 cm corresponds to a maximum rating of 4, while grade 4 tremor in the Essential Tremor Rating Assessment Scale corresponds to an amplitude greater than 20 cm. The activities of daily living section correlates strongly with the performance section, and this scale also correlates strongly with transducer measures of tremor and with the Fahn-Tolosa-Marín tremor rating scale. The scale has excellent face validity, inter- and intra-rater reliability, and sensitivity to change. Upper extremity action tremor is the main focus of this scale, but action tremor is also assessed in the head, face, voice, and lower limbs. This scale requires only a pen and paper, and can be completed in about 10 minutes. The Essential Tremor Rating Assessment Scale was developed by the Tremor Research Group (to quantify essential tremor severity and its impact on activities of daily living. ![]() Elble Department of Neurology, Southern Illinois University School of Medicine, Springfield, USA The Essential Tremor Rating Assessment Scale ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |