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Pain and multiple sclerosis: pathophysiology and treatment
Claudio Solaro1, Erika Trabucco, Michele Messmer Uccelli
1Head and Neck Department, Neurology Unit, ASL 3 Genovese, Largo Rosso 3, 16153, Genoa, Italy. csolaro@libero.it
Abstract:
Pain is a common symptom in multiple sclerosis (MS) and has recently been estimated to be experienced by up to 75 % of patients. Pain can be present at any point in the course of the disease and patients may experience pain from various causes simultaneously. Pain in MS can also be secondary to other symptoms, such as spasticity, fatigue, and mood disorder. Of all drug use to treat MS symptoms, treatment for pain accounts for nearly 30 % of total use. At the same time, patients report low satisfaction with pain management. Pain affects quality of life and can influence a person's participation in family life and work and affect mood. Most of the pain literature in the field of MS is based on open-label studies involving small numbers of subjects. Placebo-controlled trials in severe pain syndromes such as trigeminal neuralgia are unethical but for other types of MS-related pain conditions, placebo-controlled trials are ethical and necessary to establish efficacy, particularly given the well-documented placebo effect for various painful conditions This review discusses available data and emphasizes areas of pain research that require further attention.
Insights
Multiple sclerosis (MS) pain affects up to 75% of patients, impacting quality of life. Current pain management offers low patient satisfaction, highlighting the need for better research and treatment strategies.
Area of Science:
- Neurology
- Pain Medicine
- Multiple Sclerosis Research
Background:
- Pain is a prevalent and debilitating symptom in multiple sclerosis (MS), affecting up to 75% of patients.
- MS-related pain can arise from various causes, including direct disease effects and secondary symptoms like spasticity and fatigue.
- Pain management in MS is associated with low patient satisfaction, despite accounting for a significant portion of medication use.
Purpose of the Study:
- To review current data on pain in multiple sclerosis.
- To identify unmet needs and areas requiring further research in MS pain management.
- To emphasize the necessity of placebo-controlled trials for establishing treatment efficacy.
Main Methods:
- Literature review of existing studies on pain in multiple sclerosis.
- Analysis of reported prevalence, causes, and impact of pain in MS patients.
- Discussion of the limitations of current research methodologies, including open-label studies.
Main Results:
- Pain is a frequent and complex symptom in MS, significantly affecting patients' quality of life.
- Existing treatments show low patient satisfaction, indicating a gap in effective pain management.
- The majority of MS pain research relies on small, open-label studies, limiting generalizability.
Conclusions:
- Effective pain management strategies for multiple sclerosis patients are lacking.
- Further research, including ethical placebo-controlled trials, is crucial for validating new pain therapies.
- Addressing MS-related pain is essential for improving patient outcomes and quality of life.
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