What is Parkinson's disease?
Parkinson's disease is a progressive neurodegenerative disorder affecting millions of people worldwide. It belongs to a group of conditions known as parkinsonism, which are characterized by a range of movement disorders. Understanding its symptoms, causes, and treatment methods is crucial for improving patients' quality of life.
Parkinsonism is a general term describing a complex of extrapyramidal symptoms, including tremor, muscle rigidity (stiffness), and loss of postural reflexes (balance impairment) [1]. The most common cause of parkinsonism is idiopathic Parkinson's disease [1].
However, there are also secondary forms of parkinsonism caused by other factors, such as medication exposure, trauma, infections, or, in rare cases, chronic subdural hematomas [1]. It is important to note that in some cases, such as with subdural hematomas, parkinsonism symptoms can significantly improve or even completely disappear after eliminating the underlying cause, for example, surgical removal of the hematoma [1].
Main symptoms of Parkinson's disease
Symptoms of Parkinson's disease are divided into motor (movement) and non-motor.
Motor symptoms:
- Rest tremor: Characteristic shaking of the limbs, especially the hands, when they are at rest [1].
- Rigidity: Increased muscle tone leading to stiffness and difficulty in movement [1].
- Bradykinesia: Slowness of movement, which makes everyday tasks such as dressing or eating significantly more difficult.
- Postural reflex impairment: Problems with maintaining balance, which increases the risk of falls [1].
- Dystonia: Involuntary, prolonged muscle contractions causing twisting and repetitive movements or abnormal postures [3]. Dystonia can significantly impair quality of life and cause discomfort [3].
Non-motor symptoms:
- Digestive problems: Constipation and fecal incontinence are frequent complaints in patients with Parkinson's disease [2]. The causes of these problems are diverse: dystonia of the external anal sphincter can make bowel emptying difficult, and the loss of dopaminergic neurons in the enteric nervous system likely leads to slowed food transit through the intestine [2].
Diagnosis and differential diagnosis
The diagnosis of Parkinson's disease is based on the clinical picture and the exclusion of other causes of parkinsonism. It is critically important to conduct a thorough differential diagnosis to distinguish idiopathic Parkinson's disease from secondary forms [1].
For example, chronic subdural hematoma, although a rare cause of parkinsonism, can present with similar symptoms [1]. In one review of 23 cases of parkinsonism associated with subdural hematoma, the average interval between the onset of the first symptoms and the diagnosis of the hematoma was about 8 weeks [1]. Successful surgical treatment of the hematoma led to significant patient improvement [1]. This emphasizes the importance of a comprehensive examination to identify potentially reversible causes of parkinsonism.
Comprehensive approach to treatment
Treatment for Parkinson's disease aims to alleviate symptoms and improve quality of life, as there is currently no complete cure. The approach must always be comprehensive and individualized.
Medication therapy:
The mainstay of treatment consists of medications that help compensate for dopamine deficiency in the brain, reducing motor symptoms.
Physical activity and rehabilitation:
Physical exercise plays a key role in managing symptoms and maintaining functional independence [5]. Exercise recommendations for patients with Parkinson's disease include [5]:
- Aerobic exercise: 3-5 times a week, lasting 20-40 minutes, of moderate intensity.
- Strength training: 2-3 times a week, performing 1-3 sets of 8-15 repetitions.
Management of non-motor symptoms:
To alleviate constipation and other digestive problems, dietary adjustments, oral laxatives, and suppositories are often used [2]. However, the evidence base for these methods in central neurological disorders is currently limited [2]. A multidisciplinary approach involving neurologists, physical therapists, occupational therapists, speech therapists, and dietitians is important.
Living with Parkinson's disease: Support and outlook
Living with Parkinson's disease requires adaptation and ongoing symptom management. The goal of palliative care, including for symptoms such as dystonia, is to relieve suffering and improve quality of life [3].
Early diagnosis, adequate treatment, and active patient participation in rehabilitation programs can significantly slow the progression of symptoms and help maintain independence for a longer period. Support from family and medical professionals plays a crucial role in this process. Research continues, offering new perspectives in understanding and treating this complex disease.
Sources
- Parkinsonism secondary to subdural haematoma. Parkinsonism secondary to subdural haematoma.
- Neurogenic colorectal and pelvic floor dysfunction. Neurogenic colorectal and pelvic floor dysfunction.
- Towards new perspectives: International consensus guidance on dystonia in pediatric palliative care. Towards new perspectives: International consensus guidance on dystonia in pediatric palliative care.
- Exercise Training Guidelines for Multiple Sclerosis, Stroke, and Parkinson Disease: Rapid Review and Synthesis. Exercise Training Guidelines for Multiple Sclerosis, Stroke, and Parkinson Disease: Rapid Review and Synthesis.
The information provided in this article is for reference purposes only and cannot replace professional medical advice. Always consult a specialist for the diagnosis and treatment of diseases.