Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Clinical Rating Scale for Tremor (CRST) ====== The **Clinical Rating Scale for Tremor (CRST)** is a standardized instrument to assess the **severity and functional impact of tremor**, particularly in conditions such as **Essential Tremor** and **Parkinson’s Disease**. It is divided into three parts: ===== Part A: Tremor Localization / Severity (max 32 points) ===== ^ Item ^ Description ^ Score (0–4) ^ | Rest tremor | Face, lips, chin, tongue, hands | | | Postural tremor | Arms outstretched | | | Kinetic tremor | Spiral drawing, pouring water | | | Intention tremor | Finger-to-nose | | | **Total Part A** | | | ===== Part B: Specific Motor Tasks (max 36 points) ===== ^ Task ^ Description ^ Score (0–4) ^ | Handwriting | Legibility, steadiness | | | Drawing spiral (right) | Circle symmetry and amplitude | | | Drawing spiral (left) | Circle symmetry and amplitude | | | Pouring water | Between two cups | | | **Total Part B** | | | ===== Part C: Functional Disabilities (max 20 points) ===== ^ Activity ^ Description ^ Score (0–4) ^ | Speaking | Intelligibility | | | Feeding | Use of utensils, spillage | | | Hygiene | Tooth brushing, shaving | | | Dressing | Buttons, zippers | | | Working/social activities | Ability to perform tasks or socialize | | | **Total Part C** | | | ===== Total CRST Score: 0 to 88 ===== **Interpretation**: * 0 = No tremor * 1–20 = Mild tremor * 21–40 = Moderate tremor * >40 = Severe tremor impacting daily activities **Applications**: Used in clinical trials and treatment evaluation, including: * Medication response * Deep Brain Stimulation (DBS) * Focused Ultrasound Thalamotomy (FUS) clinical_rating_scale_for_tremor.txt Last modified: 2025/05/13 06:45by administrador