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  1. Classification of severity of asthma

    In clinic, This question always threw by physician to us. Most of us unable to answer it. I went through most of the standard textbook include Kumar and clerk, davidson,nichollas talley etc..in which none of the book mention about it..i would like to share this to those who are interested.

    Category 1- Mild intermittent.....
    Daytime symptoms less than once a week
    Nocturnal symptoms less than once a month
    Normal lung function

    Category 2- Mild persistent......
    Daytime symptoms more than once a week (but <1 per day)
    Nocturnal symptoms more than twice a month
    PEFR / FEV1 > 80%


    Category 3- Moderate persistent....
    Daytime symptoms daily
    Nocturnal symptoms more than once a week
    PEFR / FEV1 60 – 80%

    Category 4- Severe persistent....
    Daytime symptoms daily
    Daily nocturnal symptoms
    PEFR / FEV1 < 60%

    I hope this is useful to all of you. However, some also argue that for category 1-daily symptom is less than twice /week and nocturnal symptom is less than twice /month. Here, I invites further discussion from all of you...Thanks.
    Last edited by karcity; January 1st, 2008 at 12:49 PM. Reason: Typo
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  2. Various Guidelines for Asthma

    A good undergraduate student reads beyond usual text books

    There are four categories (determining STEPs of management) of asthma, as shown in the attachment. This is the most commonly used classification of severity.

    Attachment: Bronchial Asthma Classifications.pdf

    However, there is another widely used and arguably 'better' classification by GINA (The Global Initiative For Asthma). It classifies asthma control as:
    1. Controlled
    2. Partially Controlled
    3. Uncontrolled
    Regarding your doubt on whether Category 1 is symptoms less than once or twice per week, it is not that much important while managing an individual patient. You may remember and use <2 per week, as that is more practical.

    A useful link: http://www.asthmacontrol.com/
    Last edited by Shashikiran; January 8th, 2008 at 06:22 AM.
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  3. Wow...it definitely clear all the doubt most of us have. By the ways, can sir attach the GINA guidelines pdf file here, so that for those who are interested, they can download it. i search throughout here and there but cant get the latest GINA guidelines . i will appreciated it if this is possible. Thanks lot...
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  4. Sure. Here is the list of all Guidelines & Resources available at GINA. I have also attached the Summary Guidelines here.

    From the Global Strategy for Asthma Management and Prevention, Global Initiative for Asthma (GINA) 2007. Available from: http://www.ginasthma.org.
    Attached Files
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  5. Thanks you very much. It really helps lot...For the GINA guidelines, i cant find it for the past one year. Thanks again.
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  6. thanks a lot
    best post
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