Systemic disease/general/pregnancy Flashcards
Autonomic dysreflexia
At or above T6 SC injury level
Development 5 primary vesicles of brain
Telencephalon- cortex
Diencephalon - thalamus, BG, hippocampus, amygdala
Mesencephalon - Midbrain
Metencephalon - pons and cerebellum
Myelencehalon - medulla, SC
Cavernous malformation
CCM1 - genetic mutation
Pilocytic vs anaplastic astrocytoma
Pilocytic - cystic mass in cerebellum, supratentorium
Lateral temporal vs medial temporal seizures
Lateral - shorter, auditory hallucinations, vertigo
Vs medial
Most susceptible to hypoxia
CA1 hippocampus (where you get Burnina bodies)
Ach
Preganglionic, parasympatheic postganglionic is ACh
Sympathetic sweat glands - ACh
Cystathione beta synthase deficiency
Homocystinuria
Clots
Aphemia
Amusia
Aphemia - Pure word mutisms, anarthria but comprehensive reading and writing intact
Amusia - nondom temporal - can’t process music
NF
NF 1 - cafe au lait, Lisce nodules, optic glioma
NF 2 - BL schwanommas/hearing loss; adulthood
Fatal familial insomnia
N2 loss sleep architecture
Inherited prion disease
Reduction in total sleep
Kluver busy
T2 hyperintensity BL anterior temp lobe HSV encephalitis association
osmotic demyelination
trident/snout sign
insomnia drugs MOA
Ramelteon - melatonin R agonist
Zolpidem - GABAergic
Trazodone - 5-HT2 antagonist
Suvorexant - inhibits Orexin R - suppresses wakefulness promoted by Orexin -
Orexin,( hypocretin)-narcolepsy type 1 + cataplexy- no orexin, low orexin in CSF (autoimmune attacking orexin neurons)
(Modafinil - blocks DA transport, neurostimulant)
infective endocarditis
ischemic stroke most common neuro complication
-mycotic aneurysms: distal arterial
-mechanical valves more complications vs bioprosthetic valves; equal complications with native valve
L sided endocarditis more neuro complications
-less common: secondary hemorrhagic, SAH, abscesses, meningoencephalitis
Sickle cell
Ischemic stroke more common than hemorrhagic; more common in kids than adults
Plasma cell dyscrasias
-Waldenstrom
-MGUS - M monoclonal spike - myelin associated glycoprotein MAG - even if no MM-demyelinating neuropathy
-MM
-Plasmacytomas
-Amyloidosis
Can get POEMS syndrome
-encephalopathy -hypercalcemia, hyperviscosity (IG)
-infection
-paraneoplastic +
-infiltrative neuropathy (amyloid) -sensorimotor axonal neuropathy
-cryoglobulinemia - neuropathy, rare mononeuritis; cerebral vasculitis-stroke
type I - IgM - MM, Waldenstrom
type II-polyclonal IgM, IgG - lymphoproliferative, autoimmune, Hep C
type III - IgM, IgG, infections, autoimmune disorders
ITP vs TTP vs DIC
Thrombotic thrombocytopenic purpura - seizure, microangiopathic hemolytic anemia, low plt, encephalopathy, renal dysfxn
-schistocytes, decreased plt NORMAL coags ;
Tx: plasma exchange
HUS - E coli, Shigella - ab pain, diarrhea in kids ->seizures, encephalopathy, CN palsy
DIC - fibrinogen reduced, D dimer elevated, abnormal PT/PTT
ITP - no neuro manifestations - no schistocytes
hepatic encephalopathy
serum ammonia can be normal
-low protein diet, reduced ammonia
- from colon via lactulose
-TIPS increases risks
path: Alzheimer type II astrocyte
Celiac disease/gluten sensitive enteropathy
neuro Sx can be only manifestations
-axonal peripheral neuropathy, inalmmatory myopathy
-cerebral calcifications risk seizures
-loss Purkinje cells cerebellum (not reversible)
-no increased malignancy
Inflammatory bowel disease
venous, arterial thrombosis
cranial neuropathies - CN VII (Melkersson Rosenthal syndrome, tongue fissure+angioedema)
peripheral neuropathy - demyelinating + axonal
malabsorp vit E + B12
electrolyte abnormalities
seizures - hyponatremia, hypoglycemia, hypomagnesemia
weakness - hypokalemia (spares bulbar) ; hypocalcemia-tetany, tingling in fingers; hypermagnesemia
encephalopathy - hypercalcemia
thyroid disease
waxing waning encephalopathy - SREAT-autoimmune thyroiditis - check anti-microsomal Ab
hyperthyroidism - always tremor; can also get parkinsonism, dyskinesia, chorea
thyroid eye disease - restricted upgaze most common
-eyelid retraction - overactivation Muller muscle
hypothyroidism - pseudomyotonia (delay muscle relaxation after reflex)
-entrapment neuropathy
-axonal/demyelinating neuropathy
diabetic neuropathy
CN - CN III + VI most common
- ipsilateral forehead pain 2/2 ischemia
diabetic amyotrophy -pain, sensory loss then weakness
neuropathy - accumulate sorbitol, fructose; oxidativestress
-early small fiber affected - tingling pain (small fiber neuropathy NCS NORMAL)