QT Flashcards

1
Q

facteurs de risque

A

génétique
métabolique
structurelle
pharmaco

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2
Q

réserve repolarisation

A

somme des courants ioniques qui contribuent à la repolarisation myocardique

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3
Q

facteurs de risque
longue

A

syndrome QT long
polymorphisme génétique
ATCD tdp
QTC > 500 ou variation 60
désordre électrolytique
processus inflammatoire
femme
> 65 ans
IC, HVG
bradycardie/pause
ischémie/IM
hypothermie
hypoT4
rx

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4
Q

désordre électro

A

hypoK
hypoMg
hypoCa

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5
Q

homme ou femme
âge

A

femme
> 65 ans

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6
Q

problème cardiaque

A

IC, HVG
bradycardie/pause
ischémie myocardique
IM

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7
Q

problème courant

A

hypothermie
hypoT4

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8
Q

conditions favorables induire tdp

A

inhibiteur 450 (3A4) (azole)
hypoK
hypo Mg (panto, furo, HCTZ)
intoxication (benadryl)

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9
Q

jus pamplemousse

A

inhibiteur suicide 3A4
1 verre = suffisant
jus = pire que fruit

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10
Q

prévention tdp

A

identifier fdr et corriger
alternative, éviter asso
surveiller K, Mg et Ca
ajuster dose si IR ou iH ou intx
cesser ou diminuer dose si > 500 ou 60

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