Cognitive Dysfunction After Aneurysmal Subarachnoid Haemorrhage

Cognitive Dysfunction After Aneurysmal Subarachnoid Haemorrhage

This is a longitudinal, multi-center, prospective study of aneurysmal subarachnoid haemorrhage patients in neurosurgical units in Hong Kong.

The investigators aim to recruit a total of 240 aneurysmal subarachnoid haemorrhage patients. The schedule for neuropsychological and functional assessments will be phased in at the second to third week, the third month, and the twelve months after the initial haemorrhage.

Inclusion criteria

1. Spontaneous subarachnoid haemorrhage with intracranial aneurysms as aetiology
2. Admission within 96 hours of ictus
3. Aged between 21 and 75 years
4. A speaker of Chinese (Mandarin or Cantonese)
5. Informed consent from patients or their legally acceptable representatives

Exclusion criteria

1. History of previous cerebrovascular disease or neurological disease other than intracranial aneurysm
2. History of neurosurgical operation prior to ictus