Myocardial infarction at work cannot be regarded as an accident.

EDITOR,—M C Petch argues that sudden cardiac death or myocardial infarction occurring within hours of unaccustomed physical effort may justify a claim for benefit payments or occupational injury.1 Although the mechanism of the final thrombosis may indeed be related to exercise,2 these patients have pre-existing arterial disease, and most previous claims have been for “acceleration of …