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Asthma, as we know, is a chronic lung condition that is characterized by difficulty in breathing. Persons with asthma have extra sensitive or hyper-responsive airways. During an asthma attack, the airways become irritated and react by narrowing and constructing, causing increased resistance to airflow, and blocking the flow of the air passages to and from the lungs.
It is highly probable that people with asthma are more likely to be affected by altitude sickness.
Fit and healthy people with well-controlled asthma should, however, have no problems coping with high altitudes provided that they ascend slowly and recognize and accept their limitations, adjusting their medicine if there is a need.
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Pressurized inhalers may not work properly in freezing conditions. Before using, they should be warmed (e.g. in the hands).
Additionally, the conditions in high altitude areas are often dry and cold, and these conditions tend to exacerbate and trigger asthma. Persons whose asthma is triggered by cold conditions might find that high altitudes are a problem, as the air temperature usually decreases at higher altitudes.
Also, climbing can be a very strenuous exercise and this may trigger exercise-induced asthma in some individuals.
On the contrary, people whose asthma is triggered by house-dust mites may find that their asthma improves, as the house-dust mite cannot survive at altitudes higher than ‘the snow line’.
Persons with asthma who fly directly into a place that is at high altitude will not have time to acclimatise and may experience some problems. This should be discussed with a doctor so that the altitude reached by aircraft should not pose troubles for people with asthma.
The best thing to do is to discuss your trip with your doctor a few weeks in advance of your departure. This will allow time to work out a personal asthma action plan for the travel. This might involve increasing your preventer treatment for several weeks before the trip to provide the airways extra protection, or measuring peak flow while away to determine how altitude is affecting your lung function, or even simple things like making sure that you have enough medication and backup medication.
Tagged with: asthma prevention • asthma relief
Filed under: Asthma