Yield of further diagnostic work-up of cryptogenic subarachnoid hemorrhage based on bleeding patterns on computed tomographic scans

  • Andaluz N
  • Zuccarello M
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Abstract

Subarachnoid hemorrhage (SAH) is cryptogenic in 15% of cases. Despite reports of proven recurrence, additional diagnostic studies are not often recommended when no abnormalities were identified on the initial study with digital subtraction angiography (DSA). In our retrospective review of outcomes after cryptogenic SAH, we identify diagnostic strategies that most often yielded the source of bleeding.

Author-supplied keywords

  • Bleeding source
  • Cryptogenic
  • Diagnostic imaging
  • Digital subtraction angiography
  • Nonperimesencephalic
  • Perimesencephalic
  • Subarachnoid hemorrhage

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Authors

  • Norberto Andaluz

  • Mario Zuccarello

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