Pons Lesions
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- Опубликовано: 11 сен 2020
- 18:00 In Raymond Syndrome, the CN VI and Corticospinal fibers are affected, in some cases the Facial nerve is affected as well
30:51 in Locked-in Syndrome, the loss of horizontal gaze is caused primarily due to the Paramedial Pontine Reticular Formation (PPRF) lesion , CN VI and IV can sometimes be affected
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In this lecture Professor Zach Murphy will present on the most common types of Pons Lesions. We highly recommend watching our Pons Anatomy & Function lecture ** • Neurology | Pons Anato... ** prior to this lecture to truly understand all of the pons anatomical structures. We hope you enjoy this lecture and be sure to support us below!
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#ninjanerd #PonsLesions #Neurology
Pons lesion-
Ventropontine syndrome-
Ipsilateral facial nerve palsy.
Ipsilateral lateral rectus plasy.
Contralateral hemiplegia.
Foville syndrome-
Ipsilateral facial nerve palsy.
Ipsilateral lateral rectus palsy.
Contralateral hemiplegia.
Ipsilateral gaze palsy due to paramedian pontine nuclear reticular formation.
Artery invovled-
Paramedian branch of basilar artery.
Short circumferential and long branches of basilar artery.
Anterior inferior cerebellar artery.
Lateral pontine syndrome-
Marie foix syndrome-
Contralateral hemiplegia
Contralateral loss of crude touch pain temperature.
Ipsilateral ataxia cerebellar
Deafness.
Locked in syndrome-
Quadriplegia
Horizontal gaze palsy.
Bilateral internuclear opthalmoplegia.
Reticular formation is intact.
Pons lesion-
Vental pontine
Foville syndrome
Lateral pontine
Locked in
Thank you sir
You’re looking great Zach!!!
Ninja Nerd lectures are the best!!
Love ya guys! 💙💙
Love your teaching method. This ONLY way to learn the syndromes is to understand them. Thank you for your work
Beautifully explained. Thanks zack
specifically enjoyed ur explanation of locked in syndrome---what a masterpiece
Hey there Zach, amazing content as usual. Would like to point out a correction.
At 18:01 while discussing Raymond Sx, you describe it as Ipsilateral facial nerve palsy + Contralateral hemiplegia. However, afaik, it is Ipsilateral 6th nerve (abducens) palsy + c/l hemiplegia.
Also, some authors have suggested two presentations of raymond Sx (with & without facial paresis). But all agree on the involvement of Abducens nerve.
Hope you have a look at this. Thanks for the great video.
Yes ur correct ...I also noticed this now , raymond is 6 nerve with contralateral hemiplegia ..
Very true.
Classical Raymond syndrome could be with or without a Contralateral facial nerve palsy in addition to the defects you mentioned above chesslord.
Zach you may consider editing the video
{although I am not a techy,I think it's possible.. perhaps inserting a footnote at the time to make the correction or by inserting a video clip just after you had spoken about Raymond syndrome to correct the error;The clip may even be a power point slide); Besides,weldone as usual Zach (and the entire team)!!
Thanks a lot. You are saving my life 😊❤️
Marvellous presentations.Loved it.
Loved the brainstem videos...It's gud to c u back teaching...
Really looking forward to ur future videos :D...
Plz keep teaching neurology🤩🤩....U really make it much more simplified😄
Great presentation Zach(and team)👍
I would like to add-
In Marie Foix syndrome,one could also have ipsilateral facial nerve palsy,Horner's syndrome,nystagmus and vomitting.
Locked in syndrome has 2 other presentations apart from the classical presentation you described.
There's the incomplete immobility variant in which there is some preservation of motor function and
There's the complete immobility variant where in addition, there's also loss of vertical eye movement BUT preservation of cortical function demonstrated on EEG.
I saw ur many lectures it's so helpful& as well as so easy to understand it & one thing more look fit😊😍😍
“Where the heck is that blue marker?”- lol! Thanks for teaching us Zach! Thank you Ninja Nerds!
19:28 Raymond syndrome- ipsilateral 6th nerver Palsy. 7th nerve spared..
Sir you are an amazing teacher
Searching entire RUclips n got from the man i view frequently ☺️.
The best
Thank you Prof Murphy. Coolest Professor every.
Yayyyy a lifesaver! God bless you! Thanx a million!
As always best video. Thank you so much.
Excellent talk and teaching
Thanks
First time ever understand it...big respect 🙇♀️
thank you man for another awesome video!!
Tysm for such great efforts 👏
Thank u sir, it's really really helpful
thanks for all second you are soend in this vedio, I hope give as more neurosurgery lecture
If i say u r intelligent it is not enough a lot of people r intelligent u r a born teacher u know how to teach what is first second third like so to be taught after having your lecture on the subject need not to open book your personality your voice your features all are beautiful your knowledge your delivery marvellous your qualities r beyond words your musical delivery just like a soothing song i m senior citizen of City Agra a homoeopathic physician u have made me new i have nothing to pay only wishes i wish u a healthy long prosperous life to u and to your family
Well done❤️
Did you know that one cannot breathe while smiling
Now I just made a person smile for no reason
F.u
Didn’t fall for it, but it’s very sweet of you.
😇😇Thanks alot
You’re video is very very help me to understand 👌👌😍😍😍
I needed this...thanks a lot 🥺...now my neuroanatomy would be easier..😁
One of my favorite videos :)
Really helpful 👍
Lots of love and respect from Pakistan 🥰
I love this ninja video..
You made lectures like a piece of cake 😎
Sir very nice lecture
Thank you so much ❤
Thanks a ton sir 🙏💐hats off...
Thank you very much...
I really love you much...... Your videos have helped me soooo much.... thanks a ton 😊😊😊.
C'est parfait!
Thank u sir also makes pharmacology lectures along with neuroanatomy lectures
Thank you
Thank you soo much sir 💕💕💕
Thankx a lot,Sir.♥ :)
Zach, watch out! Your biceps are almost ripping the sleeve off! Hahaha looking great man, congrats on your heathy life journey 💪
Thanks 💛
Loved it
Thanks
Amazing👍👍
You are just amazing sir ❤️🙏 I never made wish to.meet someone. But yes I want to meet you somewhere sometimes in the life ❤️❤️ keep going❤️🇵🇰🇵🇰🇵🇰🇵🇰
Thank u Sir
In your video about Gluconeogenisis you said Acetyl CoA was allosteric stimulated of Pyruvate Carboxylase..but what I studied was it is obligatory activator.
Kindly upload the lecture about limbic system and reticular formation
Biiiig love and respect 🙏🙏🙏🙏❤️❤️❤️
Thank u sir u are awesome
Thankyou so muchh
What causes damage to the pons?
👍
This can happen because the blood vessels that supply blood to the pons and the rest of the brainstem are located in the back of the neck, and may become injured as result of neck trauma or sudden pressure or movements of the head or neck.
Just the question i wanted to ask. Thanks :)
@@Echelon111999 👍❤
Yes, after I suffered a rotational (with) head impact injury, MRI found tiny hyperintensity where the left trigeminal nerve exits the pon and a very subtle lesion on the left middle cerebellar peduncles. I was so dizzy and nauseated and my left eye was spinning but drs are saying most likely white matter desease. No head injury. Nothing to see here.
Tankful for you ❤️❤️
Lock-in syndrome is a true tragic. My gramp & my patient had it, and it truly depressed me. Btw, your vid is great 👍🏻
I'm so sorry to hear that. It must be so difficult
Excellent presentation again. Need little correction of Raymond syndrome. PPRF is close to the abducens nucleus. Vertical gaze center is located at thalamomescencephalic junction.
Perfect 🤩
If all teachers had a natural unintentional ASMR quality to them (like yourself) classes would be so much more manageable lmao
awesome
Sweet Deal!
amazeballs!
💖LOVE YOU NINJA💖
Amino acid metabolism please 😘l😘😘
Everybody's asking where is the lesion, but no-one is asking how is the lesion 😢
I have central pontine myelinolysis
Zach ⚡⚡
Once 👏a👏gain👏! Doing God's work🔥
Sir waiting for pharmacology lectures also
Thank you for sharing, video was very informative, however you don't speak of what types of lesions there are in the pons. My 11 yr. old son has a "probable" capillary telangiectasia in the "central pons" with an adjacent vein traversing the adjacent pons to the prepontine cistern, 1.3 x 1.0 x 1.2 cm. I was waiting thru the whole video to hear "central pons" as well as the "prepontine cistern." We've seen three neurologists and they are 95% sure it's a CT. He gets his second brain mri on Apr. 9th. Would really love to know more about your thoughts on "types of lesion in the pons." My son has headaches, nausea and is always complaining of being hot.
until next time ! ;)
Dude you are awsome how comes your channel is not lareger ???
I'm shairing it on fb
Can you please tell what will be the symptoms in cerebellar pontine stroke please
This guy is so cool, you could keep a side of beef in him for a week.
So med school students study all of this stuff?! Wow!
:))
Happy I choose Biomedical Engineering Technology. I mean damn dude
@@markanthony1004 Engineering has lots of high-level math though?
@@nathantan1635 Mostly in the DC-AC circuits courses. I'll be honest if you study and pay attention it starts to make sense and becomes easier the more you do it
😂
Hei bro, i have a question. Gastric parietal cell contain which kind of muscarinic receptor? M3 or M1 ?
Raymond will involve abducens nerve I think
❤❤❤❤
Hello Zach, Thank you for the explanations, although most of this is over my head, I'm experiencing facial paralysis on the left side of my face and am fairly worried as with most of the physical problems I've had I can usually exorcise them away, I've had an MRI and a cat scan so, no stroke according to the doctors...another MRI for the neck in 9 days, I was wondering what I might expect them to find out. Thank you for posting.
MS?
@@emilybailey268 This is one of the things that the last doctor I saw yesterday said might be my problem, I also have Dysphagia and am going in for a barium swallow on the 8th of this month as I have lost a great deal of weight and can't swallow food and have trouble lifting my head and I'm being told to see a neurologist and a neurosurgeon. PS: I saw your reply and thought that perhaps I missed a pronoun somewhere along the way. Thank you for your reply.
Spinal lemoniscus is lemony
Could you please explain me why in Millard gubler syndrome, corticobulber fibers are spared and only corticospinal fibers are involved? Anatomically that should not be.
Raymond syndrome:
C/L hemiplegia + 6th nerve palsy
(7th nerve is spared)
What causes this Millard gublar in anatomical background.
👌👌👌
Are the sympathetic fibers not involved in the lateral pontine syndrome? I.e Horner syndrome.
isn't raymond syndrome I/L abducens palsy and C/L hemiplegia ? like it is ventro"medial" ? Not sure please confirm . Thanks
I did a bit research. There are two types. Please find below the summary and reference: “To date, only a few cases of Raymond syndrome, commonly without facial involvement have been reported. To our knowledge, the current case, with facial involvement, is the second validation of the classic Raymond syndrome after an extensive MEDLINE search. We would, therefore, propose the concept of two types of Raymond syndrome: (1) the classic type, which may be produced by a lesion in the mid-pons involving the ipsilateral abducens fascicle and the non-decussated corticofacial and corticospinal fibers; and (2) the common type, which may be produced by a lesion involving the ipsilateral abducens fascicle and non-decussated corticospinal while sparing the corticofacial fibers.” [PMID: 22934209]
please add subtitles
In raymond syndrome 6th nerve involved
I really admire his drawing skills, that's awesome
P.S. If you are interested in biology ,you will probably find interesting stuff on my chanel
activate automatic subtitles
You are my companion every night
In lateral pontine syndrome, there is no corticospinal fibers involvement
The lesions might extend in medial direction and affect few corticospinal tract fibres.
How old are you zach?
❤️❤️👍
Correction:
In Foville's syndrome: MLF is affected not PPRF in addition to CN6,7 & corticospibal tract
Studying is way much easier
Osum
Keep on the good deeds dr Olabhie may good thing never depart from you for saving me off genital herpes
1st like 😍