We present two cases of subarachnoid haemorrhage (SAH) caused by ruptured infectious intracranial aneurysms secondary to endocarditis. The first patient presented with neurological signs of an SAH. Fever and the presence of a previously undiagnosed heart murmur were reasons to obtain blood cultures and initiate further diagnostic workup for endocarditis. The second patient presented with neurological symptoms during the evaluation and treatment of previously diagnosed endocarditis. Loss of consciousness due to a ruptured aneurysm on the 27th day of treatment prompted further research. Using these two cases as illustrations, we want to draw attention to the dangerous neurological complications that can occur during an episode of endocarditis and call for timely evaluation.
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