Role of Inflammatory Processes in Hemorrhagic Stroke

Sarah N. Ohashi, Jonathan H. Delong, Mariel G. Kozberg, David J. Mazur-Hart, Susanne J. Van Veluw, Nabil J. Alkayed, Lauren H. Sansing

Research output: Contribution to journalReview articlepeer-review

17 Scopus citations


Hemorrhagic stroke is the deadliest form of stroke and includes the subtypes of intracerebral hemorrhage and subarachnoid hemorrhage. A common cause of hemorrhagic stroke in older individuals is cerebral amyloid angiopathy. Intracerebral hemorrhage and subarachnoid hemorrhage both lead to the rapid collection of blood in the central nervous system and generate inflammatory immune responses that involve both brain resident and infiltrating immune cells. These responses are complex and can contribute to both tissue recovery and tissue injury. Despite the interconnectedness of these major subtypes of hemorrhagic stroke, few reviews have discussed them collectively. The present review provides an update on inflammatory processes that occur in response to intracerebral hemorrhage and subarachnoid hemorrhage, and the role of inflammation in the pathophysiology of cerebral amyloid angiopathy-related hemorrhage. The goal is to highlight inflammatory processes that underlie disease pathology and recovery. We aim to discuss recent advances in our understanding of these conditions and identify gaps in knowledge with the potential to develop effective therapeutic strategies.

Original languageEnglish (US)
Pages (from-to)605-619
Number of pages15
Issue number2
StatePublished - Feb 1 2023


  • cerebral amyloid angiopathy
  • cerebral hemorrhage
  • hemorrhagic stroke
  • inflammation
  • subarachnoid hemorrhage

ASJC Scopus subject areas

  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine
  • Advanced and Specialized Nursing


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