Brown-Séquard syndrome (Year of the Zebra)

[@abdelhaibouaicha3293]

📝 Summary of Key Points: 📌 Brown-Séquard syndrome is a condition that occurs when there is damage to one half of the spinal cord, resulting in the loss of sensations and paralysis in certain parts of the body. 🧐 The spinal cord is divided into two halves, with white matter on the outside and gray matter on the inside. There are different tracks that carry sensory and motor information to and from the brain. 🚀 Sensory information goes through three neurons to reach the brain, while motor signals travel down the corticospinal tract to control muscle movement. 📊 Brown-Séquard syndrome is usually caused by trauma or spinal cord tumors, and it can result in various sensory and motor problems depending on the damaged tracts. 💡 Treatment for Brown-Séquard syndrome involves supportive care and rehabilitation, with corticosteroids used to manage inflammation. 📣 Concluding Remarks: Brown-Séquard syndrome is a condition that affects the spinal cord, leading to sensory loss and paralysis on one side of the body. Understanding the different tracks and pathways involved in sensory and motor function is crucial in diagnosing and managing this syndrome. With supportive care and rehabilitation, individuals with Brown-Séquard syndrome can work towards improving their quality of life. Made with Talkbud

[@saikarri4101]

Thank you

[@Agni17]

Cannot thank you enough 🙏🏼 Thank you very , very much ❤

[@osmosis]

Most welcome 🥰

[@oumaimaoutani7733]

why is ipsilateral pain and temperature sensation intact ?

[@estherthomas5615]

Because of Lissauers tracts (which carry sensation above and below the the spinal level). The signals/ neurons are able to go to the spinal level above the lesion and allows the pain and temperature to decussate at the level above the injury and continue its journey to the brain.

[@imhomewiththemilk]

Actually isnt the "ascends 1-2 segments" at around min 3:00 the lissaurs tract,, its supposed to be formed by the 1st order neuron aka before the sinapse with the neuron at the dorsal horn (SGR/ or LM)

[@ughsirius]

Thank you, very helpful!

[@osmosis]

Glad it was helpful! 😊

[@Isabella-d3r5h]

Finally I got brown squard syndrome 😭😭😭😭😭😭😭

[@Crazybae15]

How what happened

[@giana876]

😂

[@shogunotaku]

How is it a umn lesion when the hemisection is at c1? If the nucleus gracile and cuenatus are located in the medulla ? Shouldn't it be flaccid as well?

[@Adela1212]

The dorsal columns carry sensory info to the nn. gracilus and cuneatus, hence they will cause a loss of sensation and not a flaccid or spastic paralysis (this is only for motor neurons). Hope this helps

[@ahmedhashim9746]

hello Doc, I hope you see this comment as I have a question regarding the video . Why while both upper limb and lower limb have lower motor neuron lesions , why the paralysis in the lower limb was spastic and the other upper limb was flaccid . Anyone is welcome to help . thanks un advance .

[@gissglass]

Actually the lower limb isnt having a lower motor lesion it is having a upper motor neuron lesion (since the Corticospinal tracts are sectioned and the signal from the upper motor neron doesn't reach the lower motor neuron) and therefore the lower limb becomes spastic (failure of inhibition from the upper motor neron) But for the upper limb (at the level of lesion) the lower motor motor neurons are damaged and therefore the muscle lose their tone (since lower motor nueron maintain muscle tone)

[@shreyoshimajumdar3448]

Thank you ! Amazing video……you even cleared the basics 😊❤

[@osmosis]

You're welcome 😊

[@paulthomasa7590]

Thank you chetta

[@uwufarah]

thank you

[@osmosis]

You're welcome! 😊

[@moqaftaofficial5588]

Year of the Zebra !!! What's that 🥲??

[@ck-zk2vs]

It's a play on the phrase in medicine 'When you hear footsteps, think horses not zebras.' A zebra here is a rare condition with similar signs and symptoms of a common condition. Took me a minute to figure out what they meant too :)

[@ashleelarsen5002]

I'm pretty sure it's a harry styles reference

[@deepanshikhera9090]

​@@ck-zk2vsstill not able to understand

[@s.yasasin]

❤