Neuropsychology Review

, Volume 28, Issue 4, pp 453–469 | Cite as

A Systematic Review of Cognitive Outcomes in Angiographically Negative Subarachnoid Haemorrhage

  • Tom BurkeEmail author
  • Stephanie Hughes
  • Alan Carr
  • Mohsen Javadpour
  • Niall Pender


Clinical outcomes, including performance on cognitive assessment, in patients with angiographically negative subarachnoid haemorrhage (anSAH) are often interpreted as benign with a good prognostic trajectory. However, diffuse cognitive deficits have been reported within this patient cohort resulting from anSAH, albeit to a lesser extent when compared to other neurovascular events. We consider cognitive outcomes in relation to anSAH to systematically review reported deficits, with a view to quantify and categorise cognitive impairment in this cohort. Anxiety and depression were also included within this review, provided they were assessed alongside cognitive function. Performance deficits in attention and executive function are commonly reported, with set-shifting and interference tasks most commonly impaired in patients. Non-executive cognitive functions are negatively implicated also. Clinical implications and hypotheses relating to the source of these deficits are discussed. This review was formally registered with PROSPERO (CRD42017075294).


Cognition Neuropsychology Subarachnoid Haemorrhage of unknown origin Angiographically negative subarachnoid Haemorrhage Subarachnoid hemorrhage Perimesencephalic subarachnoid Haemorrhage Non-aneurysmal subarachnoid Haemorrhage 


Compliance with Ethical Standards

Conflict of Interest

The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Supplementary material

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Authors and Affiliations

  1. 1.Department of PsychologyBeaumont HospitalDublin 9Ireland
  2. 2.School of Psychology, John Henry Newman BuildingUniversity College DublinDublin 4Ireland
  3. 3.Academic Unit of NeurologyTrinity Biomedical Sciences InstituteDublin 2Ireland
  4. 4.Department of NeurosurgeryBeaumont HospitalDublin 9Ireland

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