What Researchers Did
Researchers reviewed medical records over 10 years from a Sydney, Australia hospital to understand why people were referred for dive medical exams and what the outcomes were.
What They Found
Out of 191 candidates, 77.5% were recreational divers and 62.3% were male. Respiratory problems were the most common referral reason (35%), followed by central nervous system (14%). Overall, 71% (136) were found 'fit to dive', 26% (49) 'unfit', and 3% (6) had restrictions. Notably, 25 of 43 candidates (13% of the total) with a diagnosis of asthma were cleared to dive.
What This Means for Canadian Patients
For Canadians considering scuba diving, this study shows that a detailed medical evaluation is important. It highlights common medical issues like respiratory conditions that often require assessment. It also suggests that even with conditions like asthma, a personalized review can sometimes lead to a 'fit to dive' assessment, despite general guidelines.
Canadian Relevance
This study is not Canadian and does not feature Canadian authors. However, it covers dive medical examinations, which are directly related to preventing diving-related injuries such as decompression sickness and arterial gas embolism, both of which are Health Canada-recognized indications for hyperbaric oxygen therapy.
Study Limitations
This was a retrospective study from a single center in Australia, which means its findings may not apply to all divers or regions.