Just when I thought I knew everything there was to know about asthma and COPD in general, a couple of my lung docs kindly corrected me on a few misconceptions I had regarding my own lung disease.
Misconception #1 : I always thought that because I have a chronic problem with air trapping and the breathing discomfort that accompanies it, that I surely must have elements of COPD (emphysema) mixed in with my asthma.
Not necessarily. There are several ways that air-trapping can occur. My Pulmonologists believe that my air-trapping is caused primarily by chronic and persistent inflammation of my smaller airways, rather than by structural changes that you would expect to see in a patient with COPD or Emphysema. While it’s true that I have chronic severe asthma and probably have some airway remodeling, my lung doctors believe that my lung disease is still most likely “pure asthma” and not COPD or emphysema which is caused primarily by cigarette smoking.
A major research study on severe asthma completed last year , the SARP study, seems to support that claim. Something else I learned in that regard, is that air-trapping ( the kind you typically see in people with COPD) can be seen on a CT scan of the lungs. My CT scan shows no signs of that type of air-trapping.
Misconception #2 : During times of breathing difficulty, I always thought that I could “feel” the difference as to whether I was air-trapping or having bronchospasm . I just assumed that when I have the sensation of not being able to exhale completely , that what I’m actually experiencing is air trapping ,and when I have the sensation of having difficulty getting air in, that I must be having bronchospasm.
Again, not necessarily. My lung docs were quick to point out that both air -trapping and bronchospasm can cause similar sensations. Whether the narrowing of the airway is caused by the constriction of the smooth muscle that surrounds the airway from the outside, or whether it’s caused from inflammation and swelling from the inside of the airway, the results are the same….The diameter of the airway gets smaller, making it difficult to inhale AND exhale! Both conditions can cause extreme discomfort.
So does this mean I don’t have at least a little bit of COPD superimposed on my asthma? Probably, but in any case , it now appears that the mostly likely beneficial treatment option for me in the future would be Bronchial Thermoplasty and not Endobronchial Valve placement as I originally thought.
PS…..I still think I can “feel” the difference between air trapping and bronchospasm….Ive been tuned into my lungs for a long time.


























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Knocked down, but not defeated
Tracheal Who?





