Book contents
- Movement Disorders and Inherited Metabolic Disorders
- Movement Disorders and Inherited Metabolic Disorders
- Copyright page
- Dedication
- Contents
- Contributors
- Preface
- Acknowledgments
- Section I General Principles and a Phenomenology-Based Approach to Movement Disorders and Inherited Metabolic Disorders
- Chapter 1 Treatable Metabolic Movement Disorders: The Top 10
- Chapter 2 The Importance of Movement Disorders in Inborn Errors of Metabolism
- Chapter 3 The Importance of Inborn Errors of Metabolism for Movement Disorders
- Chapter 4 Imaging in Metabolic Movement Disorders
- Chapter 5 Biochemical Testing for Metabolic Movement Disorders
- Chapter 6 Genetic Testing for Metabolic Movement Disorders
- Chapter 7 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Ataxia
- Chapter 8 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Dystonia
- Chapter 9 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Parkinsonism
- Chapter 10 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Spasticity
- Chapter 11 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Myoclonus
- Section II A Metabolism-Based Approach to Movement Disorders and Inherited Metabolic Disorders
- Section III Conclusions and Future Directions
- Appendix: Video Captions
- Index
- References
Chapter 9 - A Phenomenology-Based Approach to Inborn Errors of Metabolism with Parkinsonism
from Section I - General Principles and a Phenomenology-Based Approach to Movement Disorders and Inherited Metabolic Disorders
Published online by Cambridge University Press: 24 September 2020
- Movement Disorders and Inherited Metabolic Disorders
- Movement Disorders and Inherited Metabolic Disorders
- Copyright page
- Dedication
- Contents
- Contributors
- Preface
- Acknowledgments
- Section I General Principles and a Phenomenology-Based Approach to Movement Disorders and Inherited Metabolic Disorders
- Chapter 1 Treatable Metabolic Movement Disorders: The Top 10
- Chapter 2 The Importance of Movement Disorders in Inborn Errors of Metabolism
- Chapter 3 The Importance of Inborn Errors of Metabolism for Movement Disorders
- Chapter 4 Imaging in Metabolic Movement Disorders
- Chapter 5 Biochemical Testing for Metabolic Movement Disorders
- Chapter 6 Genetic Testing for Metabolic Movement Disorders
- Chapter 7 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Ataxia
- Chapter 8 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Dystonia
- Chapter 9 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Parkinsonism
- Chapter 10 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Spasticity
- Chapter 11 A Phenomenology-Based Approach to Inborn Errors of Metabolism with Myoclonus
- Section II A Metabolism-Based Approach to Movement Disorders and Inherited Metabolic Disorders
- Section III Conclusions and Future Directions
- Appendix: Video Captions
- Index
- References
Summary
Parkinsonism is a syndrome diagnosed by the presence of cardinal motor features, generally defined as bradykinesia in combination with rigidity, resting tremor, flexed (stooped) posture, and freezing and/or impaired postural reflexes [1, 2]. Bradykinesia, the hallmark feature, is determined by the presence of the “sequence effect” (also known as fatiguing or decrement): repetition leads to progressive decrease in speed and/or amplitude of movements [3]. Hypokinesia describes a small amplitude of movements (with or without fatigue) and akinesia literally means “lack of movement.” Hypokinesia is sometimes equated to parkinsonism (as in “infantile hypokinetic–rigid syndrome”), but technically is not the same phenomenon.
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- Information
- Movement Disorders and Inherited Metabolic DisordersRecognition, Understanding, Improving Outcomes, pp. 124 - 142Publisher: Cambridge University PressPrint publication year: 2020