Immersion pulmonary oedema
Meaning of immersion pulmonary oedema: For the purposes of this Statement of Principles, immersion pulmonary oedema means: (a) a condition in which acute pulmonary oedema develops while swimming or diving; and (b) excludes acute pulmonary oedema attributed to pulmonary decompression sickness, acute myocardial infarction or an acute exacerbation of chronic heart failure.
Reasonable Hypothesis (RH) — Statement of Principles No. 34 of 2017
At least one of the following factors must as a minimum exist before it can be said that a reasonable hypothesis has been raised connecting immersion pulmonary oedema or death from immersion pulmonary oedema with the circumstances of a person's relevant service:
- (1)undertaking swimming or underwater diving at the time of the clinical onset of immersion pulmonary oedema;
- (2)inability to obtain appropriate clinical management for immersion pulmonary oedema;
Aggravation-only factors: the factors in subsection 8(2) apply only to material contribution to, or aggravation of, the condition where it was suffered or contracted before or during (but did not arise out of) the person’s relevant service.
Balance of Probabilities (BoP) — Statement of Principles No. 35 of 2017
2 factors
At least one of the following factors must exist before it can be said that, on the balance of probabilities, immersion pulmonary oedema or death from immersion pulmonary oedema is connected with the circumstances of a person's relevant service:
- (1)undertaking swimming or underwater diving at the time of the clinical onset of immersion pulmonary oedema;
- (2)inability to obtain appropriate clinical management for immersion pulmonary oedema;
Aggravation-only factors: the factors in subsection 8(2) apply only to material contribution to, or aggravation of, the condition where it was suffered or contracted before or during (but did not arise out of) the person’s relevant service.








