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Differences in circadian variation of cerebral infarction, intracerebral haemorrhage and subarachnoid haemorrhage by situation at onset
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  • Published on:
    Differences in Circadian Variation of Cerebral Thrombosis and Embolic Brain Infarction by Situation
    • Shinichi Omama, MD
    • Other Contributors:
      • Yuki Yoshida, Akira Ogawa, Toshiyuki Onoda, and Akira Okayama

    Dear editor

    In response to our article, Spengos et al. suggested that we should evaluate the circadian variation of stroke onset separately for the aetiologically different subtypes of ischaemic stroke. Stroke diagnostic criteria of the registry in our study are based essentially on MONICA manual version 1.1, which classifies cerebral infarction (CIF) into that due to cerebral thrombosis (TMB), embolic brain infarction...

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    Conflict of Interest:
    None declared.
  • Published on:
    Is circadian variation of stroke onset associated with stroke etiology?

    Dear Editor,

    In their recent paper Onama et al evaluated the circadian variation of cerebral infarction (CIF), intracerebral haemorrhage (ICH) and subarachnoid haemorrhage (SAH) in a population-based study by using stroke registry data.[1]

    The authors describe a bimodal circadian pattern for ICH and SAH, whereas CIF showed a single peak when all cases in all onset situations were examined. This difference...

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    Conflict of Interest:
    None declared.