Kostamo v. Marquette Iron Mining Co.

In these consolidated cases the workers had arteriosclerotic heart disease. Kostamo and Bullard had heart attacks and died. Jarman had a heart attack and lived. Fiszer and Hannula offered expert testimony that they had suffered heart attacks but the Worker’s Compensation Appeal Board found that they had not.

The WCAB denied compensation to all the claimants except Jarman who, it found, had suffered work-related heart damage and disability. We affirm, except in Kostamo, which we remand for further proceedings.

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In Fiszer and Hannula, the issue was whether they had suffered heart damage. The…