Thromboangiitis obliterans
Meaning of thromboangiitis obliterans: For the purposes of this Statement of Principles, thromboangiitis obliterans means a nonatherosclerotic, segmental, inflammatory, occlusive vascular disease affecting the small and medium-sized arteries and veins.
Reasonable Hypothesis (RH) — Statement of Principles No. 28 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 thromboangiitis obliterans or death from thromboangiitis obliterans with the circumstances of a person's relevant service:
- (1)smoking at least three pack-years of cigarettes, or the equivalent thereof in other tobacco products, within the six years before the clinical onset of thromboangiitis obliterans;
Note: pack-year of cigarettes, or the equivalent thereof in other tobacco products is defined in the Schedule 1 - Dictionary.
- (2)being exposed to second-hand smoke for at least 3 000 hours within the six years before the clinical onset of thromboangiitis obliterans;
Note: being exposed to second-hand smoke is defined in the Schedule 1 - Dictionary.
- (3)the oral use of smokeless tobacco on more days than not, for at least three years within the six years before the clinical onset of thromboangiitis obliterans;
Note: smokeless tobacco is defined in the Schedule 1 - Dictionary.
- (4)smoking at least half a pack-year of cigarettes, or the equivalent thereof in other tobacco products, within the one year before the clinical worsening of thromboangiitis obliterans;
Note: pack-year of cigarettes, or the equivalent thereof in other tobacco products is defined in the Schedule 1 - Dictionary.
- (5)being exposed to second-hand smoke for at least 500 hours within the one year before the clinical worsening of thromboangiitis obliterans;
Note: being exposed to second-hand smoke is defined in the Schedule 1 - Dictionary.
- (6)the oral use of smokeless tobacco on more days than not, for at least six months within the one year before the clinical worsening of thromboangiitis obliterans;
Note: smokeless tobacco is defined in the Schedule 1 - Dictionary.
- (7)inability to obtain appropriate clinical management for thromboangiitis obliterans;
Aggravation-only factors: the factors in subsections 9(4) to 9(7) 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. 29 of 2017
3 factors
At least one of the following factors must exist before it can be said that, on the balance of probabilities, thromboangiitis obliterans or death from thromboangiitis obliterans is connected with the circumstances of a person's relevant service:
- (1)smoking at least three pack-years of cigarettes, or the equivalent thereof in other tobacco products, within the three years before the clinical onset of thromboangiitis obliterans;
Note: pack-year of cigarettes, or the equivalent thereof in other tobacco products is defined in the Schedule 1 - Dictionary.
- (2)smoking at least half a pack-year of cigarettes, or the equivalent thereof in other tobacco products, within the one year before the clinical worsening of thromboangiitis obliterans;
Note: pack-year of cigarettes, or the equivalent thereof in other tobacco products is defined in the Schedule 1 - Dictionary.
- (3)inability to obtain appropriate clinical management for thromboangiitis obliterans;
Aggravation-only factors: the factors in subsections 9(2) and 9(3) 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.
