anestesia neuroaxial Flashcards

1
Q

penetracion y absorcion depende de

A
masa de droga
concentracion droga en LCR
area de contacto
concentracion lipidica (mileinia y medula)
sumistro vascular

tamaño de raiz (inversamente proporcional)

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2
Q

aumenta el spread con

A

mayor volumen

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3
Q

distribucion es mayor

A
canal medular mas estrecho (torax)
mayor compliance del espacio peridural
menor contenido de grasa (desnutricion)
menor espacios de conjuncion (vejez, raquiestenosis=
mayor presion epidural (embarazo)
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4
Q

tiempo regrsion bloqueo inversamente proporcional

A

volumen LCR

area del spread

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5
Q

factores mas importantes para altura de raqui

A

baricidad y volumen LCR

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6
Q

factores mas importante para altura de peridural

A

volumen

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7
Q

escala de bromage

A

0 sin bloqueo motor
1 incapacidad para levantar pierna extendida
capacidad de mover rodillas y pies
2 incapacidad para levantar la pierna extendida y para el movimiento de la rodilla, capacidad de mover los pies
3 bloqueo motor de la extemidad completo

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8
Q

contraindicaciones absolutas

A
negativas del paciente
infeccion local
HTIC (hipertension intracraneana)
alergia medicamentos
coagulopatia mayor
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9
Q

contraindicaciones relativas

A
hipovolemia
sepsis
ea severa
coagulopatia menor
incapacidad de estar quieto
neuropatia 
qx previa e columna
esclerosis multiple
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10
Q

arteria espinal ant viene de

A

art vertebral

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11
Q

art espinal post viene de

A

art cerebelosa inf

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12
Q

mayor riesgo de isquemia

A

porcion ant y profunda

parte toraciaca media (t3t9)

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13
Q

raiices mas resistente en a. epidural

A

S1 y L5

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14
Q

orden de anestesia

A
fibras simpaticas (B)
sen de temperatura fria (C)
puncion (A.delta)
sensacion tactil (bet)
fibras mototeas (A.alfa)
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