Neuropsychiatry
07/29/02 1-5PM
Delirium and Dementia, Parkinson’s Disease and Other Movement Disorders
Dr. Vera Ramirez, MD
Delirio: subito
Dementia
Deterioro progresiva de cognicion, memoria, manera de que razonamos, hablar
Progressive cognitive and emotional impairment severe enough to interfere with daily function and quality of life
In evaluating the patient with dementia the most important goal is to rule out treatable causes of dementia
Varios tipos de dementia: Alzheimer’s es mas comun, pero lo mas importante es descartar todas causas
Treatable causes of dementia
Hypothyroidism
B12 deficiency
Cerebral vasculitis
Neurosyphilis: hace 2 semanas atras, paciente 75 anos, todo workup fue negativo excepto, un screening para syphilis
HIV
Depression
Work-up
History
Physical and neurological examination
Mini-mental state exam
Review of medication and drug levels
Serum chemistry, CBC, U/A, TSH, serum B12, VDRL, HIV, ABG’s, EKG, EGG, CT or MRI of the head, SPECT, lumbar puncture
Case dementia
Father and son visit dr, father has dementia 3 months duration
To precisely find date when dementia began, can ask if lives alone, pays bills for water on time, or if hasn’t paid and has had the water shut off, poor memory
Ask if works or not, maybe patient needs to be living with people
Historia social, si fuma, si bebe, historia familial, toma drogas, si tiene amiguita steady o si cuando coge el cheque de seguro social si tiene muchas amiguitas
Hijo puede decir que tomaba cuando era joven, o que hay latas tirades en la casa
Examen fisica, examen neurologico, mini mental: contra por 7, orientation, memory, follow directions (read oracion, copia un reloj)
Tratamiento: supervision, no debe dejar plancha prendida, deja notitas en nevera para acordarse de hacer quehaceres, aprenden cosas, viejitos son religiosas, la proximas cita quiero que aprendas un psalm que gusta mucho, compra rompecabeza y hacerlo, los sopas de letras
Alzheimer’s dementia
Epidemiology
family history of alz dis (AD), parkinson’s (PD) or Down
Age: >75
Female mas comun
Low education
head injury: boxers
link between cholesterol and beta amyloid?
diabetes?
depression?
Pathology
Gross pathology: atrofia de hipocampus
Microscopic
senile plaques
neurofibrillary tangles
granulovacuolar degeneration
Neurochemistry: Choline acetylstranferase is diminished
Genetics
Late onset AD: chromosome 19 (ApoE)
Early onset AD
Chromosomes 1 (presenilin 2 mutation)
Chromosome 14 (presenilin 1 mutation)
Chromosome 21 (amyloid precursor protein): tiene que ver con down’s syndrome
work-up: alz dis can be clinically diagnosed with an 85-95% accuracy
pharmacologic treatment
cholinesterase inhibitors
tacrine: hepatotoxico, dar 4 veces al dia
donepezil: 1 vez al dia
rivastigmine: mecanismo adicional
galantamine: mecanismo adicional
disease-modifying drugs
antioxidants: Vitamina E: ayuda memoria, mas corazon, dosis es alta, a veces paciente no lo tolera, 400mg/dia, aumenta 400mg/2 veces al dia, poco a poco tolera, 1000mg/dia, dosis recomendado es hasta 2000UI
estrogen: en mujeres, se ha visto en laboratorio que ayuda a hacer que dendrites se mantengan, no se degeneren
anti-inflammatory drugs
nicotine?: no aceptado
statins?
Gingko biloba: ayuda memoria
Vascular dementia
Multiple large infarctions
Multiple small infarctions
Diffuse chronic vascular processes such as binswanger’s disease
Examen fisico le va a tener idea que le paso algo porque tiene un hemiparesis
factores de riesgo, diabetes
frontotemporal dementia
characterized by disordered initiation, goal-setting and planning with apathetic or uninhibited behavior
most patients are unaware of their behavioral changes
pathologic accumulation of hyperphosphorylated tau proteins in brain cells?
Pick disease
dementia associated with movement disorders
huntington’s disease
progressive supranuclear palsy: problema mirando hacia abajo en plano vertical, no responde a tratamiento levodopa
parkinson’s disease: tratamiento levodopa, 30-60% desarrolla tipo alz
hydrocephalus
por trauma, puede causar dementia
normal pressure hydrocephalus
triada
apraxia a caminar: como si tuviera pies pegado a suelo
urinary inconteintein
cognitive decline
other dementia
post traumatic dementia
infections
HIV
Creutzfeldt-Jacob disease: onset rapid, EEG, va a deteriorar bien rapido, 3-4 meses muerto, si va a inglaterra no come mucho carne
meningitis
neoplasm
drugs/toxins
MOVEMENT DISORDERS
Bradykinetic: parkinson’s
Hyperkinetic
Tremors
Chorea
Athetosis
Dystonias
Myotonias
tics
Multiple movement types in a single diagnosis
Parkinson’s disease
Huntington’s disease: AD, chrom 4, caudate nucleus, suicidio, anticipation, CAG nucleotides, mas repiticiones de nucleotides es peor pronostico, si hereda de padre son mas severo mas joven, si hereda de madre son severa mas tarde
Wilson’s disease
problema de metabolismo de copper metabolism, cirrhosis, chrom 13
distonic features of left hand
Parkinson’s disease
Incidence and epidemiology
Prevalence rates: 200 per 1,000,000
rare for individuals <40 years of age
1% for individuals >60 years of age
2% for individuals >85 years of age
Males>females
Incidence rate: 20 per 100,000 (annually)
Symptoms
Tremor: pill rolling resting tremor
Rigidity: pierda movimiento de brazo cuando camina, con espasmo muscular, duele el hombro porque esta rigido
Bradykinesia: movimientos lentos, lento procesar la informacion, si no deja paciente pensar, la esposa habla por el
Loss of postural reflexes: tell patient to close eyes, then pull patient backwards and see if they fall
sialorrhea: no tiene reflejo de tragarlo, concientemente hay que tragarlo
hipomimia: falta de expression facial, mira a la papa que no tiene expression facial, como si tuviera una mascara
Classification
Primary (idiopathic) parkinson’s disease: ver si tuvo medicamento neurolepticos, responde a medicamentos
Parkinson plus syndromes: progressive supranuclear palsy
Drug induced
Phenothiazines/butyrophenones
Metoclopramide (reglan)
MPTP
Calcium-channel blockers (Diltiazem)
Alpha methyl dopa (Aldomet)
Toxic
Carbon monoxide
manganese
Vascular
Multi-infarct
Binswanger’s disease
Trauma: pugilistic parkinsonism (ali)
Infectious: post encephalitic parkinsonism (von economo’s): no responde a levo dopa
pathology
depigmentation and loss of neurons in the substantia nigra and other pigmented nuclei (that have dopamine)
lewy bodies
neurochemistry: loss of striatal dopamine
therapy: levodopa
benefits
precursor of dopamine
most effective therapy
significantly extends life expectancy
limitations
nausea, constipation
sleep disturbances
usa con carbidopa
therapy: dopamine agonists
nos da mas tiempo, aunque no funciona tan efectivo para sintomas
on-off phenom
dyskinesia
surgery
pallidotomy
thalamotomy
deep brain stimulation
autologous tissue transplant
fetal mesencephalic tissue transplant
tremor
involuntary, rhythmic oscillating movement (parkinsons is resting tremor, versus cerebellar intention tremor)
it may occur at rest (PD), on posture holding (physiologic and drug induced) or action (benign essential tremor)
intention tremor, a type of action tremor is characteristic of cerebellar disorders, como en paciente con esclerosis multiple con finger pointing to nose
no todo que tiene temblor es parkinson’s
causes of tremor
drugs
amphetamines
alcohol withdrawal
valproate
caffeine
toxic/metabolic
uremia
thyrotoxicosis
hypocalcemia
heavy metals
treatment
propranolol (inderal)
primidone (mysoline)
BDZ
Chorea
Irregular, unpredictable, brief movements that flow from one body part of another in a non-stereotyped fashion, trata de esconderlo
Causes
drugs
infections
toxins
conditions associated with chorea
hunt
Wilson
syndenhams’ (rheumatic fever)
lupus
chorea gravidorum
polycythemia vera
hyper/hypothyroidism
Dystonia
Movimientos mas lentos
Slow twisting movements usually with the peak of the movement sustained for a second or longer
Dystonia may be generalized as in idiopathic torsion dystonia or focal (segmental)
Torticolis (movement neck)
Writer’s cramp, se queja que no puede escribir ni coger el lapis
Focal dystonias
blepharospasm
torticolis
writer’s cramp: thumb extends, elbow abducted during writing, during typings the fingers spontaneously flex
oromandibularlingual distonia: tardive distonia, exposure to neuroleptics, jaw opening and closing, tongue protrusion and contortion
breathy disfonia: causes abductor disfonia, patients vocal cords allow sounds to escape easily, whisper disfonia
conditions associated
parkinson’s
huntington’s
wilson’s disease
motor cortex affected
treatment: botulinum toxin, can have complete remission
myoclonus
very rapid, brief, almost shocklike jerks
may involve very small muscles
combing hair, then throws comb, can be prominent intention myoclonus seen trying to touch the finger to another finger and nose
essential palatal myoclonus: rhythmical contraction of soft palate and associated with clicking in left ear
causes
infection: herpes
metabolic
uremia
hypoglycemia
trauma
anoxia
conditions associated
wilson’s disease
hunt
creutzfeldt Jacob
tics
stereotypic, repetitive, intermittent, movements or sounds that characteristically is suppressible for some time but gets to a moment where they have to do it
touch things, smell fingers, hit themselves, grind teeth, swing out arms, kick legs, shake head, if someone puts a thought into your mind like saying the word tongue they will stick out their tongue, grimace
usually preceded by an urge to make the tic and followed by relief
if vocal tic, patient will repeat word sthat others say, like in class will repeat what teacher says and yell it out
volitional control, suppression by concentration if concentrate on counting and touching fingers
treatment: haloperidol, pomozide
pelicula
tremor
handwriting tremor: can’t draw spiral
task specific tremor: can’t write certain numbers such as
position specific tremo: hold glass with left hand close to mouth has tremor, not with right hand, nor with left hand far from mouth
familial hand tremor: transiently relieved with alcohol
puede tambien tener PD asociado
head trauma complicated right 3rd nerve palsy and left hemiparesis, pronation supination tremor left arm while at rest and holding arm in outstretched position
sicogenic tremor: also diagnosed as pseudoseizure, acute onset right hand tremor after she forgot to pick up daughter from school, spontaneously resolved, but recurred associated with stress, mas sicologico
tardive dyskinesia syndrome
68 year old women touches scalp, complains of nervousness, squirms, can medically suppress akathesia
tardive distonia and diskinesia: oral diskinesia, jaw opening distonia, no akathesia
cocaine abuser took neuroleptics, diskinesias in cranial, cervical, and brachial regions, treatment with tetrabenazine has improvement but not complete
group cases on thursday
examen de importante
diagnostico importante, donde esta lesion, diagnostico patologico, que haria
class info
chili’s 6 veronica
election: wed
meeting: wed
comite graduacion: wed
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