Delayed rebleeding of a spontaneously thrombosed aneurysm after subarachnoid hemorrhage

Muhammad Omar Chohan, Franklin D. Westhout, Christopher L. Taylor

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Background: This report provides a rare documentation of spontaneous thrombosis of a ruptured aneurysm followed by delayed recanalization and subsequent rerupture.

Case Description: A 47-year-old female presented with spontaneous subarachnoid hemorrhage (SAH). Four aneurysms were identified on CT angiogram including a basilar apex aneurysm, considered source of bleeding. Cerebral angiogram on postbleed day (PBD) # 1 showed spontaneous thrombosis of basilar apex aneurysm. The patient was discharged to a nursing home on PBD # 18 after two subsequent studies showed no recanalization of the basilar aneurysm. The patient returned on PBD # 26 with a second episode of spontaneous SAH. The previously thrombosed basilar aneurysm had recanalized and reruptured, which was now treated with coil embolization.

Conclusion: We are not aware of a previous report of saccular cerebral aneurysm documenting spontaneous thrombosis after SAH and recanalization with second hemorrhage. This occurrence presents a dilemma regarding the timing and frequency of subsequent cerebrovascular imaging and treatment.

Original languageEnglish (US)
Article number129615
JournalSurgical Neurology International
Issue numberSupplement
StatePublished - 2014
Externally publishedYes


  • Aneurysm
  • Embolization
  • Recanalization
  • Subarachnoid hemorrhage
  • Thrombosis

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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