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Severe asthma patients trap air in lungs

Patients with severe asthma may be experience a different form of the disease, according to research.

The research, conducted on 669 people with asthma and 85 controls, showed those who had more severe asthma had air trapped in their lungs as they tried to exhale.

Furthermore, as airflow limitation became more pronounced, the 287 subjects in the severe group tended to trap more air in their lungs.

Results from the spirometry tests showed this did not happen in those suffering from moderate or mild asthma.

Report authors said: ‘That tells us something different is going on in people classified as having severe asthma, either psychologically or in the airways that are affected.’

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