The Time Course of Cognitive Deficits in Experimental Subarachnoid Hemorrhage

  • Zhiyuan Vera Zheng
  • Ping Kuen Lam
  • Wai Sang Poon
  • Kwok Chu George WongEmail author
Part of the Acta Neurochirurgica Supplement book series (NEUROCHIRURGICA, volume 127)


Subarachnoid hemorrhage (SAH) is a devastating stroke type. Approximately 50% of survivors suffer from the permanent disability, caused by the cognitive deficits. To enrich the pre-clinical research on the neurological deficits after SAH, we investigate the temporal cognitive deficits and the longitudinal course of cognitive recovery in endovascular perforation SAH murine model. The SAH mice show reproducible body weakness and headache-symbolized moaning symptoms, which is closed to clinical patients. SAH mice exhibit significantly impaired cognitive function in domains of learning ability, short-term and long-term memory. The cognitive deficits occur mostly in the early phase and recover gradually till day 10 after SAH. The systematical assessments of cognitive function after experimental aneurysmal SAH elucidate the time course of cognitive deficits and provide the time window of potential interventions.


Subarachnoid hemorrhage Animal model Cognitive deficits 



The authors appreciate the help and support from the colleagues of the Department of Surgery, The Chinese University of Hong Kong.

Conflict of Interest Statement: The authors declared no financial or intellectual conflict of interest.


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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Zhiyuan Vera Zheng
    • 1
  • Ping Kuen Lam
    • 2
  • Wai Sang Poon
    • 1
  • Kwok Chu George Wong
    • 1
    Email author
  1. 1.Division of Neurosurgery, Department of SurgeryThe Chinese University of Hong Kong, Prince of Wales HospitalHong KongChina
  2. 2.Department of SurgeryChow Tai Fook-Cheng Yu Tung Surgical Stem cell Research Centre, The Chinese University of Hong KongHong KongChina

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