0:00–0:16#01 IntroductionIn this video, we'll answer some questions. What are the most characteristic manifestations of multiple sclerosis? How does a relapse present? “I have this symptom. Is it related to multiple sclerosis or not?”
0:16–0:36#02 What are symptomsIn Greek, “manifestation” means symptom. That's why we always say a symptom of multiple sclerosis. We have symptoms that are characteristic of MS, and there are symptoms that aren't typical initially. When a characteristic symptom appears, we immediately think: could this person have MS? So what's typical for MS?
0:36–1:27#03 1. Decreased visionFirst is decreased vision in one eye. This vision loss can present in completely different ways. For example, a dark spot may appear in your visual field — in the center or off to the side. The eye might feel like it's covered by a curtain or gray film, and one eye will have decreased perception. The image may show altered color perception. Flashes of light, or overlapping glare. But most often it's decreased vision, like a curtain or dark spot in the visual field — and importantly, in just one eye. This is a characteristic symptom that may indicate the onset of MS. Most often, this is a manifestation of what we call optic neuritis.
1:27–1:54#04 2. Double visionThe next characteristic symptom is double vision. Out of nowhere you start seeing horizontal image separation, or as patients describe it — focusing problems. You look at an object and it keeps doubling when you turn your head right or left; the doubling goes away, but turning the other way it gets worse. This type of double vision can quite often be the first sign of multiple sclerosis.
1:54–2:26#05 3. Numbness, clumsiness, weaknessNumbness in an arm or leg — fingers or the entire limb. Clumsiness: you used to perform fine motor movements well, but now there's awkwardness and limb weakness. Often it's leg weakness or numbness that comes on suddenly — you notice you're limping on one leg, or a heaviness in the legs when walking. These are quite characteristic symptoms of multiple sclerosis.
2:26–2:50#06 4. Dizziness, coordinationThere are rarer symptoms not as typical for MS, which can appear at onset or later — dizziness and coordination problems. There's imprecision with fine movements or walking; balance becomes impaired, and a person walks veering to one side — right, then left.
2:50–3:43#07 5. Urinary dysfunctionAnother less common initial manifestation is urinary dysfunction. Most often it appears later, in more advanced stages, but it's important to keep in mind. With MS, so-called urgency is characteristic — the person doesn't feel the need to go, then suddenly there's an urgent, commanding need and they literally have to run. This is called urinary urgency, or imperative voiding.
3:43–4:49#08 6. FatigueAnother characteristic sign — often missed by doctors and patients — is fatigue. Persistent fatigue, not related to physical exertion. Sometimes it appears in the morning after sleep: you should wake up rested but wake up exhausted, as if you'd done heavy labor. It prevents you from completing tasks at work. People often say: “I even had to quit my job — I switched to something easier because the fatigue was always with me.” If it occurs in a young person, it needs to be investigated.
4:49–5:44#09 7. Atypical presentationsThere are also atypical presentations — MS can even debut with an epileptic seizure or rarer neurological symptoms. If a young person between 20 and 30 starts experiencing dysfunction — sensory disturbances or movement problems — we immediately think: could this be MS? See at least a neurologist and don't wait. And a strong request: if a neurologist said it's “degenerative disc disease,” please get a second opinion, to be sure it isn't something more serious. Feel free to share in the comments the symptoms that are characteristic for you.
5:44–6:47#10 MS course — relapsesMS doesn't typically progress steadily; it's a relapsing-remitting course. There are episodes called relapses — vision decreased in one eye, an arm went numb, a leg became weak. If such a symptom appears and lasts more than 24 hours — that's important. It's there today; tomorrow you wake up and it's still there. This could be an MS relapse — onset, or the beginning of a relapse if you already have MS. See a doctor immediately, preferably an MS specialist, so they can treat it and restore the impaired function.
6:47–7:27#11 RemissionThe second part of the relapsing-remitting course is remission — the person feels well, or has some lingering issues, but no new symptoms appear. We need to extend remission as much as possible using disease-modifying therapies (DMTs). The longer we maintain it, the lower the chance of developing a disabling complication in the future.
7:27–8:06#12 Cause of relapses — immune systemRelapses occur because the immune system becomes activated. In MS we're dealing with autoimmunity — but it doesn't mean the immune system constantly destroys myelin. It destroys myelin during relatively brief intervals: a sudden immune activation begins, immune cells enter the brain, form new lesions, and then everything subsides. This entry of immune cells and appearance of new lesions — that's a relapse.
8:06–8:30#13 Relapse = inflammationSo a relapse is essentially inflammation within the central nervous system. It doesn't involve the entire brain at once — it comes in measured doses, as new lesions. And importantly, during a relapse these lesions begin to accumulate contrast agent.
8:30–9:14#14 MRI with contrastThat's why we do MRI with contrast — to see if there's active inflammation. Why do lesions accumulate contrast? We give contrast intravenously, so it's in the bloodstream. The brain is separated from blood by the blood-brain barrier, which is impermeable to most molecules. But where inflammation develops, that section of the barrier becomes permeable and substances rush in, including the contrast — into the limited area of the new lesion. We see it and say: you've developed acute inflammation, a lesion that requires treatment.
9:14–9:51#15 New lesion — manifestations & treatmentA new lesion in the brain or spinal cord carries manifestations — disruptions along nerve-impulse pathways, showing as movement problems or sensory disturbances. If we treat the relapse quickly enough, extinguishing the inflammation, the lesion becomes non-inflammatory and function is restored. This is typically done with medication — first of all methylprednisolone — to suppress inflammation; the lesion becomes inactive and function returns.
9:51–10:52#16 Pseudo-relapseBesides actual relapses, there are pseudo-relapses. The key difference: they last several hours, never more than 24. A symptom — visual flickering or hand numbness — lasts 1–2 hours, three at most, passes, comes back, and the next day it's gone. That's a pseudo-relapse. They're triggered by stress (usually psycho-emotional), overheating, or recent infections — a slight misactivation; once the trigger resolves, everything returns to normal.
10:52–11:01#17 Difference: relapse vs pseudoA true relapse involves formation of a new lesion, contrast enhancement, and symptoms lasting more than 24 hours.
11:01–11:19#18 Don't delayAs soon as you develop a first symptom, or any new symptoms lasting more than 24 hours — don't delay. See an MS specialist right away to confirm or rule out a relapse. And if a relapse is confirmed — immediate therapy to best restore the impaired function.