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Anonymous

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  1. Apfel-Score bei PONV

    51 votes
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    2 comments  ·  Formula Suggestions » New Formulas  ·  Admin →
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    Anonymous supported this idea  · 

  2. MAC values for Isoflurane, Sevoflurane and desflurane

    27 votes
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    3 comments  ·  Formula Suggestions  ·  Admin →
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    Anonymous commented  · 

    MAC(Alter, Gas)=MAC(40, Gas)*10^
    (-0,00269*(Alter-40))

    MAC(AGas, N2O)=(Konz AGas et/MAC(Alter, AGas))+(Konz N2O et/MAC(Alter, N2O))

    MAC(40):
    Halothan 0,77%
    Enfluran 1,70%
    Isofluran 1,15%
    Desfluran 6,65%
    Sevofluran 2,10%
    N2O 105%

    Modern anaesthesia machines calculate the MAC according to the above formula for one other gas +/- N2O. As it is quite a complicated formula it would be handy to only have to put in
    age
    endtidal gas 1
    endtidal gas 2
    endtidal N2O

    into MedCalc to get the combined MAC value when you have to use a machine that doesn't.

    Oh and it would be nice not only to be able to calculate the standard MAC but also the MAC(aware), the average anaesthetic concentration at which 50% of patients regain awareness. So far I couldn't find MAC(40,aware) values though.

    Anonymous supported this idea  · 

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