[Problems in medical expert assessment in cerebral aneurysm ruptures]

On the basis of two cases, the question is discussed as to whether or not rupture of a cerebral aneurysm during working hours can be classed as an industrial accident. The possibility that raised blood pressure during an extraordinary, very atypical effort could be the cause of rupture is discussed in detail. The authors stress their opinion that--from neurosurgical view point--the rupture of a so-called congenital berry aneurysm can never be classed as a working accident but is absolutely fortuitous. Every event of daily life thought to be the cause of aneurysm rupture is completely coincidental.