What Researchers Did
Researchers performed a systematic review to evaluate the safety of recreational SCUBA diving for individuals with asthma.
What They Found
The review identified 15 relevant studies, comprising three surveys, four case series, and eight mechanistic investigations. Survey data indicated a high prevalence of asthma among recreational SCUBA divers, similar to the general population. There was weak evidence suggesting an increased rate of decompression illness in divers with asthma, and diving led to decreased lung function (forced vital capacity, forced expired volume over 1.0 second, and mid-expiratory flow rates) in healthy participants.
What This Means for Canadian Patients
Canadian patients with asthma considering recreational SCUBA diving should be aware of potential risks, including a possible increased risk of pulmonary barotrauma and decompression illness. Decisions regarding diving participation must be made on an individual basis through informed, shared decision-making with their healthcare provider.
Canadian Relevance
This study was conducted by Canadian authors. It covers decompression, which is a Health Canada-recognized indication for hyperbaric oxygen therapy.
Study Limitations
The evidence for an increased risk of decompression illness among divers with asthma was weak, highlighting a need for more definitive research.