analgesicos Flashcards

(27 cards)

1
Q

cox 1

A

-constitutiva
prostanoides fx homeostaticas
-mucosa gastrica, riñones, plaq,. endotelio vascular.

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2
Q

cox 2

A
  • inducible
  • prostanoides inflamacion, dolor y fiebre
  • cerebro, riñones
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3
Q

efectos adversos AINES

A
hemorragia postop
hemorragia gastrointestinal
disfuncion tubular renal
antiagregaciuon plaquetaria
hipetension
edema periferico
broncoespasmo: AIA
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4
Q

metamizol inhibe

A

prostaglandina sintetasa

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5
Q

mcanismos de opioides

A

disM: AMPc, corrientes de Calcio
aumenta: corrientes de K+

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6
Q

consecuencias funcionales opioides

A

dism excitabilidad periferica uy neuronas centrales

dism liberacion de neurotranmisores excitadores

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7
Q

efectos adv mu, delta

A

sedacion, nausea, euforia, Depresion resp, constipacion

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8
Q

efectos adv Kappa,

A

disforia, aversion, diuresis, sedacion

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9
Q

biodisponibilidad tramadol

A

70%

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10
Q

union a proteinas tramadol

A

4%

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11
Q

metadona actua sobre receptores..

A

mu y kapa

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12
Q

clonidina

A

larga accion
embolos intermitentes
bolo: 3ug/kg
infusion: 0.3 ug/kg/hr

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13
Q

dexmetomedina

A
accion mas corta
infusion ev continua
bolo 1 ug/kg
infusion 0,4 ug/kg/hr
66% menos morfina
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14
Q

cosecuencia funcional aines

A

disminuye sensibilizacion de neuronas sensitivas

aumenta inhibicion de neuronas espinales

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15
Q

mecanismo de accion metamizol

A
  • reduce sintesis prostaglandinas proinflamatorias al inhibir act de prostaglandina sintetasa
  • estimula receptores opioides presinapticos perifericos
  • incrementa los umbrales de excitacion de las neuronas aferentes finas mielinizadas
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16
Q

codeina actua en receptor..

17
Q

duracion y dosis codeina

A

4 hr

60mg cada 4hr (360 mg dia)

18
Q

biodisponibilidad tramadol /union a proteinas

19
Q

inicio de accion tramadol

20
Q

dosis tramadol

A

0.75-1mg /kg cada 4-6 hr

21
Q

dosis max morfina

A

0,5-1mg /kg dia

22
Q

inicio accion metadona (VO)

23
Q

efectos de metadona duran

24
Q

dopamina involucrada en analgesia en ketamina

25
serotonina involucrada en analgesia en ketamina
si
26
bloqueo de canales de calcio involuvrados en analgesia en ketamina
no
27
activacion de antiinflamatorio TLR4 y antiinflamatorio adenosina involucrado en analgesia en adenosina
no pero puede desempeñar un papel en dolor de larga data