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What is the Brown-Séquard syndrome?
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Marck Scholtz |
14/01/2009, 15:09 |
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Brown-Séquard syndrome or Hemisection of the Cord.
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Wajahat Raza Qureshi |
13/08/2009, 01:23 |
Brown-Séquard syndrome or Hemisection of the Cord.
Hemisection of the spinal cord can be caused by fracture dislocation of the Vertebral Column, by a bullet or stab wound, or by an expanding tumor. Incomplete hemisection is common; complete hemisection is rare. The characteristic clinical features are seen in patients with a complete hemisection of the cord after the period of spinal shock has ended.
For furthur details you should Consult:
Clinical Neurology by Richard S Snell ( 7th Edition)
CH-4 The Spinal Cord and the Ascending and Descending Tracts
(ISBN 978-0-7817-9427-5)
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"Dawsons encephalitis"
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Mostafa |
25/02/2009, 22:26 |
what kind of organism may cause it?
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Brain death
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Dopler |
24/02/2009, 09:33 |
What are the criteria to establish brain death?
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In the US...
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Mr. Fixit |
24/02/2009, 09:52 |
The easiest way to remember it is by going from head to toe.
1. Pupillary light reflex - Direct stimulation and a direct/consensual response should not be seen.
2. Corneal reflex - Dab the cornea with a piece of cotton. Blinking response should not be elicited
3. No response to pain - Can be elicited by the Palpebral reflex , where stimulation of the exit place of V1 does not cause movment of the palpebral muscle as a reaction to pain ( more accurate than to look for limb movements in low glasgow)
5. Oculocephalic reflex (Doll's eyes) - Opening the eyes and rotation of the head should get teh eyes moving with the direction of the movement instead of staying fixated on the target.
6. Gag reflex - Stimulation of the pharyngeal arches does not cause a gag reaction (this is done by moving the ET tube)
7. Caloric stimulation - Injection of an ice-cold fluid into the ear after checking that the tympanic membrane is intact, does not lead to a deviation of the eyes towards the stimulus (in the awake nystagmus)
8. Apnea test - Preoxygenate with high FiO2 unill reaching a PO2 of approx 200mmhg, then disconnect the ventillator but leave 100% O2 at a 6L/min flow. If the PCO2 rises to 60mmHg there's ventillatory failure.
Before making a definite decision, make sure the patient is not hypothermic, deeply sedated, severe trauma.
Complementary tests - EEG and carotid doppler can and may be done to help rule out but they are not necessary in the US.
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LP-Lumbar Puncture
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Maya |
14/01/2009, 15:16 |
How many tubes do we need to collect?
And what do we need to check in those tubes? for example (colour,cbc ext..)
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LP
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Motsi |
23/01/2009, 19:44 |
You need to collect 3 tubes to DD: traumatic tap/SAH
Then you check for : glucose(60%),RBC(less then 3),neutrophils (0),WBC,proteins and culture/gram stain or any other stain(eg..TB)
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What are the contraidications ?
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Awaijs |
07/02/2009, 18:23 |
For performing an LP ?
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CI
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GEORGY |
07/02/2009, 18:25 |
Contraindications for performing an LP include:
(1) elevated ICP owing to a suspected mass lesion of the brain or spinal cord,
(2) symptoms and signs of pending cerebral herniation in a child with probable meningitis,
(3) critical illness (on rare occasions),
(4) skin infection at the site of the LP, and
(5) thrombocytopenia.
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What i sa positive Romberg sign?
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Kate |
07/02/2009, 17:41 |
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Sorry,What is a positive Romberg sign?
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Kate |
07/02/2009, 17:42 |
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Romberg sign is positive (patient is unsteady with eyes...
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NEUROLOGY |
07/02/2009, 18:13 |
Subject: Romberg sign is positive (patient is unsteady with eyes closed, but not when they are open
Romberg sign is positive (patient is unsteady with eyes closed, but not when they are open)
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How to treat MS(multiple sclerosis)?
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dikla |
23/01/2009, 19:39 |
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Crossed signs
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Lucinda |
02/01/2009, 21:34 |
What is meant by the term "crossed-signs"
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# signs..
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hugo |
13/01/2009, 18:41 |
As a principle, main task and therefore terminology in neurology is to localize the lesion irrespective of the etiology. crossed signs referring to facial signs on the same side of the lesion = ipsilateral side (no crossing) while the signs in the rest of body appear on the contralateral side (due to crossing). the lesion (stroke) may be in this case above (rostral to) the crossing point of the tract of interest .
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What is NPH triad?
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Boris |
11/01/2009, 18:10 |
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Normal pressure hydrocephalus triad:
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Moris |
11/01/2009, 23:56 |
1.ataxia
2.urine incontinence
3.dementia
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triad of Wernickes?
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Tom A. |
12/01/2009, 22:46 |
And if we are speeking of triads, what would be the triad of Wernickes encephalopathy?
1. ataxia
2.confusion
3. ophthalmoplegia
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what is pyramidal sign?
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Tom A. |
03/01/2009, 20:56 |
what is a pyramidal sign?
thanks, Tom
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pyramidal signs
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new doctor |
03/01/2009, 21:06 |
the pyramidal signs are those signs in physical examination of the patient which indicate that the lesion involves the corticospinal tract, anywhere between its origin in the motor cortex, to its "relay station" in the lower motor neurons in the anterior horn of the spinal cord. they should be contrast with extrapyramidal signs (e.g. tremor, bradykinesia etc.). i will list a number of such signs and if you have further questions about them you can ask (i hope i don't have misspells):
babinski, Chedok, Oppenheim sign, Mendel-Bechterev sign, Gordon, Scheffer signs, Tromner, Hoffman, and maybe more.
good luck.
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I will try...
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Nina |
02/01/2009, 21:38 |
I think you may be reffering to a lesion producing signs on the other side of the body that is contralateral to the place of the lession in teh hemisphere, since the lession occured above the place of crossing of the pyramidal tract.
e.g. A lesion in the motor cortex on the right will lead to a paresis on the left.
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