What is multiple sclerosis?
Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system (CNS) in which the immune system mistakenly attacks the myelin sheath that protects nerve fibers. Damage to myelin disrupts the transmission of nerve impulses, leading to a wide range of neurological symptoms.
The history of studying multiple sclerosis spans centuries, but a key contribution to its description was made by Jean-Martin Charcot in 1868 in Paris. He systematized the clinical and pathological features of this disorder, calling it "disseminated sclerosis" (la sclérose en plaque disséminées) [7]. Since then, the understanding and treatment methods for MS have advanced significantly, which is the result of continuous research and discoveries [7].
How multiple sclerosis manifests: key signs
The symptoms of multiple sclerosis are diverse and depend on which areas of the brain and spinal cord are affected. These can include disturbances in vision, sensation, coordination, motor disorders, and other manifestations.
Neuro-ophthalmological manifestations
Acute optic neuritis is the most common neuro-ophthalmological manifestation of multiple sclerosis [4]. However, there are other, less common but equally important visual disturbances. They can be divided into afferent (related to the transmission of information from the eye to the brain) and efferent (related to eye movement), as well as acute and chronic and acute forms [4]. Some of these manifestations may be associated with medications used to treat MS. Recognizing these diverse neuro-ophthalmological symptoms is critical for selecting targeted treatment and preventing vision deterioration [4].
Seizures
Seizures can accompany multiple sclerosis, which significantly complicates the patient management process [1]. When a patient with MS experiences seizures, a number of questions arise: how to properly approach diagnosis and treatment, and how to modify the existing MS treatment strategy to account for the seizures [1]. In 2018, a group of Iranian experts on epilepsy and multiple sclerosis held consensus workshops to develop recommendations for managing such complex cases [1].
Diagnosis of multiple sclerosis: from history to the present
Throughout the first half of the 20th century, the diagnosis of multiple sclerosis remained primarily a clinical conclusion, unsupported by confirmatory tests [7]. Over time, auxiliary methods appeared, such as cerebrospinal fluid (CSF) analysis and evoked potentials, which helped in diagnosis [7].
However, a real breakthrough occurred with the advent of magnetic resonance imaging (MRI) and the ability to detect oligoclonal antibodies in the CSF. These methods significantly facilitated and refined the clinical diagnosis of multiple sclerosis [7]. Modern diagnosis of MS is based on a comprehensive assessment of clinical symptoms, MRI data, and CSF analysis, which allows for an accurate diagnosis and the initiation of timely treatment.
Approaches to treating multiple sclerosis
The treatment of multiple sclerosis is constantly evolving, offering new opportunities for patients [7]. The goal of therapy is to slow the progression of the disease, reduce the frequency and severity of relapses, and alleviate symptoms.
- Treatment of relapses: In acute optic neuritis, high doses of intravenous corticosteroids are often used. They accelerate the recovery of vision but do not have a long-term effect on its preservation [4]. It is important to note that for other neuro-ophthalmological manifestations, corticosteroids may not be the best treatment option, and a more targeted approach is required [4].
- Disease-modifying therapy: There are disease-modifying drugs (DMDs) that aim to reduce the activity of the immune system and prevent new myelin damage.
- Symptomatic treatment: In addition to primary therapy, the treatment of individual symptoms such as spasticity, fatigue, pain, urinary dysfunction, and depression is of great importance.
- Management of comorbidities: Managing patients with seizures in MS is a complex task. Experts discuss how to approach such patients, how to treat them, and how to adapt the MS treatment strategy to ensure the best outcome [1].
The importance of a comprehensive approach
Multiple sclerosis is a chronic disease that requires lifelong monitoring and an individualized approach to treatment. A multidisciplinary team, including neurologists, ophthalmologists, rehabilitation specialists, and other professionals, plays a key role in providing comprehensive care to patients. Ongoing research and international collaboration continue to improve our understanding of MS and open up new therapeutic possibilities, offering hope for more effective treatment in the future [7].
Sources
- [1] Management of seizures in patients with multiple sclerosis; an Iranian consensus. https://pubmed.ncbi.nlm.nih.gov/31151870/
- [4] Neuro-ophthalmologic manifestations of multiple sclerosis other than acute optic neuritis. https://pubmed.ncbi.nlm.nih.gov/33412489/
- [7] The History of Diagnosis and Treatment of MS: a Brief Overview. https://pubmed.ncbi.nlm.nih.gov/35699900/
The information provided in this article is for reference purposes only and cannot replace an in-person consultation with a qualified medical professional. Always consult a doctor for diagnosis and treatment.