Are you suffering from Multiple Sclerosis?
Overview: Multiple Sclerosis
Multiple sclerosis (MS) is a demyelinating disorder, meaning that the outside myelin “sheath” of the nerve cell axons that help insulate them to allow signals to pass more effectively is broken down. It is presumed to be autoimmune in nature, although this is not yet well understood. MS involves the central nervous system and spares the peripheral nervous system. MS is more common in women than men, and more common in Caucasians than other races. Symptom onset are typically between ages 20 to 40 years. MS can run in families, but if a person has MS the first degree relative has only a 2-4% chance of having MS. Vitamin D deficiency may play some role with risk of developing MS. Scientific studies have suggested an autoimmune process in causing MS, including breakdown of the blood-brain barrier and an overactive immune system attacking the myelin sheaths. B cells, T cells, plasma cells, and antibodies have been implicated in various studies as playing roles in MS.
Features of MS symptoms
In general, the focal neurological symptoms of MS tend to develop progressively over a period of hours and then resolve or improve over a period of days or weeks.MS symptoms may reemerge or worsened in severe heat, called the “Uhthoff phenomenon.” In fact, prior to advances in MRI, Neurologists would often have hot tubs in the office to examine the patient before and after exposure to significant heat. In the modern worse, some patients with MS even wear cooling vests when going in the heat.The focal neurological symptoms are referred to as “relapses” and the recovery is referred to as “remission.” The degree of remission may be incomplete. Sometimes, there may be a persistent progressive component.
Classic presentations
There are multiple classic ways in which MS first presents.
- Lhermitte’s sign:When a person flexes the neck, there is an electric-shock-like sensation traveling down the back. This is not unique to MS, but it is often found upon questioning.
- Internuclear ophthalmoplegia (INO): An INO occurs when an MS lesion affects the medial longitudinal fasiculus, a structure that helps coordinate eye movements between the two eyes. This makes it difficult to move one eye fully in towards the nose and the other eye will have nystagmus, or jerking movements. This results in double vision when both eyes are open. When this occurs in a younger patient, MS is high considered.
- Optic neuritis: Optic neuritis is progressive vision loss, usually first affecting color vision, in one eye. It may be painful. This is due to demyelination of the optic nerve. While ON can occur by itself or in other conditions, it is quite common in MS. It is the first symptom of MS in up to 15-20% cases of MS and up to 50% of people with MS will have ON at some time.
- Partial myelitis: Myelitis refers to an inflammatory condition in the spinal cord. In contrast with other causes of transverse myelitis where the entire cross-section of the cord is affected, MS tends to only affect a portion of the level of the spinal cord. This may result in numbness in the feet/legs, spasticity, bladder dysfunction, or erectile dysfunction.
Chronic manifestations
Spasticity
Spasticity: is when the muscles in the area supplied by the portion of the nervous system that is affected with MS become stiffer and tighter. This can cause pain and decreased motor function. Medications, such as baclofen, can help with this. Botox injections can be considered to loosen the muscles. When spasticity is severe, some people will benefit from a surgically implanted baclofen pump to deliver the medication consistently directly to the central nervous system.
Difficulty walking
Difficulty or slow walking becomes common in MS. There are medications which have been shown to improve walking speed, such as Ampyra
Cognitive dysfunction
Cognitive dysfunction: MS may lead to difficulties with multitasking and short-term memory over time.
Fatigue
Fatigue is common in patients who have MS. Notably, the degree of fatigue is often reported to be out of proportion to the person’s activities. Stimulating medications are occasionally used to help combat fatigue.
Diagnosis
Since the first diagnostic criteria was laid out as the “Schumaker Criteria” in 1965, MS has been defined as being a demyelinating disorder that affects the central nervous system with multiple attacks separated in space (affecting multiple areas of the nervous system) and time (occurring multiple times). Since this time, there have been monumental advances in technology and testing, but this general definition remains unchanged. The Neurologist must use clinical history/exam and / or diagnostic testing to prove that there have been multiple attacks in multiple regions of the nervous system. The current gold standard criteria for diagnosing MS are the McDonald Criteria, which were last updated in 2017. In addition to including a clinical history / exam, these criteria implement diagnostic testing, considered ancillary testing. While not required in all cases, this testing may take the form of MRI of the brain, MRI of the spinal cord, CSF analysis, Visual Evoked Potentials, and Ocular Coherence Tomography.
MRI of the brain with and without contrast
MRI of the spine with and without contrast
Consult Our Multiple Sclerosis Specilists
Dr. Sana Syed, MD
Neuroimmunology/multiple Sclerosis and Dementia
| Personal Details | |
|---|---|
| Doctor Name | Dr. Sana Syed, MD |
| Primary Specialty | Neuroimmunology/multiple Sclerosis and Dementia |
| Subspecialty | Neuroimmunology and Dementia |
Initial Consultation: $139
Follow-up Patient Fee: $79
CSF analysis
- Cerebrospinal fluid can be obtained when the diagnostic criteria are not fully met by clinical history or imaging. In this case, oligoclonal bands or elevated IgG testing can show active inflammation in the nervous system, which can support the diagnosis of MS.
Visual Evoked Potentials (VEP)
- In the setting of atrial fibrillation, stronger anticoagulants are used to significantly reduce the risk of stroke. This includes options such as warfarin, apixaban, rivaroxaban, or dabigatran.
- In the setting of a patent foramen ovale, the person should be evaluated for a closure procedure.
- If infective endocarditis is present, IV antibiotics are used, with a rare need for surgery.
Ocular Coherence Tomography (OCT)
- OCT utilizes advanced ultrasound technology to evaluate the optic nerve in the back of the eye to check for thinning or damage that could suggest MS. This can also be followed over time to see if a person’s MS is worsening or is stable.
Tests to rule out mimics of MS
- The Neurologist may suggest blood tests to rule out other conditions that can mimic MS. Including conditions such as Lyme disease and lupus, this list is extensive and tailored to the individual.
Subtypes of MS
RR is the classic pattern whereby a person has relapses – or “attacks” – of symptoms due to MS, and then the symptoms slowly improve.
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Vascular malformations
Acute MS flare / relapse treatments
Steroids are the most common treatment for acute MS relapses. The steroids have been shown to speed up the recovery – or remission – process. Often a high-dose IV steroid called methylprednisolone is used for 3 to 5 days, although occasionally oral prednisone may be used. IV steroids are occasionally given at the hospital, but often these can be arranged in an outpatient infusion center or to be given in the person’s home.
Plasma Exchange (PLEX)
In rare cases where MS symptoms worsen despite high dose steroids, PLEX may be considered. This involves removing a person’s plasma from the blood and replacing it with other plasma. This requires a surgically placed special catheter and often requires hospitalization.
Neuromyelitis Optica Spectrum Disorder
Neuromyelitis Optica Spectrum Disorder (NMOSD) is another central nervous system demyelinating disorder that is distinct from MS. This condition involves antibodies against Aquaporin-4 receptors or MOG antibodies. While it can involve Optic Neuritis like MS, NMOSD spinal cord lesions tend to be more complete and extend 3 or more levels. NMOSD tends to respond less well to steroids than MS, often requiring PLEX and consideration for stronger systemic immunosuppressant medications such as rituximab or azathioprine.
MS relapse versus pseudo-relapse
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NeuroX is a project of American TelePhysicians, founded in 2020 in Jacksonville, Florida, intending to become a complete & comprehensive neuro & psych care portal. NeuroX provides both patients and providers the resources and tools needed to ensure outstanding integrated neurological, psychological & psychiatric clinical care with efficiency and cost savings.
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