Cold season continues to hang on and for anyone who has a child with asthma, you are aware that wheezing will often accompany winter colds.
I have spent a lot of time in the last week listening to wheezy chest, lots of coughing and seeing many children who need to be using their asthma medications. After a quiet summer of no coughing it is a good time to review asthma and the medications to use to treat as "wheezy season" is here!
Many children will wheeze once in their lifetime and I tell parents, "everyone gets one free wheezing episode". But if a child wheezes on several occasions and responds to bronchodilators they probably have asthma. If you throw in a positive family history of wheezing as well as wheezing that begins each time a child gets a cold it is time to discuss the diagnosis of asthma and the treatments that go along with the diagnosis.
The good news about asthma is that there are a lot of great medications available for treatment. With that being said I think it is important to teach parents about the pathophysiology of asthma and then talk about treatment. I tell my patients/parents that understanding wheezing is somewhat analogous to being a medical intern. You have to see the symptoms for a while and then you finally "learn it, and know it" and then can begin to understand treatment.
For a parent with a child with asthma it is the same process. Each repeated wheezing episode should get easier for a parent to know what they are dealing with and when and how to start treatment. Many times they will not need the doctor to be involved once they are comfortable with the medications.
In fairly simplistic terms, there are really two components to asthma, airway narrowing (brochospasm) and airway inflammation. In most cases it is important to be treating both symptoms. The most common trigger for asthma in children is a viral upper respiratory infection. When you get a viral upper respiratory infection the virus causes airway inflammation and irritation in all of us. That is one reason we all cough with a cold.
For an asthmatic child it also causes bronchospasm and resultant wheezing. By the time you audibly hear your child wheezing they are what we pediatricians refer to as "being tight". The goal is therefore to treat the asthmatic episode early and aggressively; you never want to hear audible wheezing.
An asthmatic cough is often short, frequent, non productive and occurs throughout the day and often all night long. I love to walk into a room and hear a child with a productive, "phlegmy" cough, as these children are typically not wheezers but are good coughers! It is that dry little recurrent pesky cough that occurs incessantly that is often the hallmark of a child who is wheezing.
In severe cases of wheezing and bronchospasm the child will also show signs of respiratory distress, where their chest may show retractions (pulling in between ribs) or using their abdominal muscles to help them breath. These children look uncomfortable and are usually not running around the exam room as they are having a hard time getting air exchanged.
Some other children may not be in any respiratory distress but when listened to with the stethoscope you can hear the high pitched noise on expiration and sometimes on inspiration as well. You just have to get used to listening. Practice, practice and then a parent with a stethoscope gets better at understanding asthma.
When a child is actively wheezing it is time to start medications to relieve their symptoms. More on treatment coming. Stay tuned.