Chronic Bronchitis: Introduction

by Carlo Raj, MD

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    00:02 Obstructive lung disease. Continuing our discussion. And here, we’ll be able to clearly define chronic bronchitis, compare this with emphysema and keep in mind, please, once again, when we’ve looked at the overview of COPD. Know the definition and as to how often times chronic bronchitis is not only in your patients with asthma, which is commonly found in the US, as a diagnosis, but could also be seen with emphysema as well.

    00:30 Okay, so, let’s go now with chronic bronchitis. Well, it’s a fact that literally, here, up in the bronchi. So, we’re pretty proximal, aren’t we, in terms of your respiratory tree? And so therefore, if the bronchi, that you see the cartoon here on your left, then these are undergoing inflammation, but apart from inflammation, you also have production of mucus. Sounds kind of familiar to asthma or very similar to asthma, does it not? So therefore, you’ll have many of your patients that may then present with three months of productive cough consecutively over a two year span. And so therefore, the symptoms of asthma and chronic bronchitis could be found together.

    01:12 On your CT here, bilaterally, in what has been circled, is the fact that the bronchi is undergoing inflammation and it looks dilated and you can clearly see that here on your chest CT.

    01:24 So, with all that said, let us now officially get into the definition. It’s chronic productive cough for 3 months for 2 successive years. 3 and 2, chronological order. In whom other causes of chronic cough, example, bronchiectasis has been excluded. So later on, at some point, when we do discuss bronchiectasis, you’ll see as to once again, how that more or less it's dealing with the infection portion of your bronchi. What does ectasis mean to you? Well, we’ll talk about that being a process of inflammation. It may precede or follow development of airway limitation. So the more that you end up creating those plugs and mucus, which we will then clinically call Reid index. And please understand that you will have a hard time with breathing air out, welcome to obstructive.

    About the Lecture

    The lecture Chronic Bronchitis: Introduction by Carlo Raj, MD is from the course Obstructive Lung Disease.

    Included Quiz Questions

    1. ...damage to the alveoli of the lung.
    2. ...irreversible airway obstruction.
    3. ...mucus production.
    4. ...thickening of the airways.
    5. ...smooth muscle changes.

    Author of lecture Chronic Bronchitis: Introduction

     Carlo Raj, MD

    Carlo Raj, MD

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