Perimesencephalic Nonaneurysmal Subarachnoid Hemorrhage after Clipping of an Unruptured Aneurysm: Case Report.

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Perimesencephalic Nonaneurysmal Subarachnoid Hemorrhage after Clipping of an Unruptured Aneurysm: Case Report.

World Neurosurg. 2017 Apr 05;:

Authors: Cho KC, Kim JJ, Hong CK, Joo JY, Kim YB

Abstract
BACKGROUND: Perimesencephalic nonaneurysmal subarachnoid hemorrhage (PNSAH) is a benign form of subarachnoid hemorrhage with an excellent clinical outcome. The cause of PNSAH remains unknown. We report a case of PNSAH in a patient with a history of clipping of an unruptured aneurysm. PNSAH after clipping of an unruptured aneurysm is extremely rare.
CASE DESCRIPTION: A 56-year-old man with a history of clipping surgery for an unruptured aneurysm 10 months previously, presented with severe headache. No precipitating causes were revealed; however, the patient had been engaged in an exertional activity before the event. After conservative treatment, he was discharged home without any complication from the hemorrhage.
CONCLUSION: On the basis of this case report, clinicians should consider the possibility of PNSAH in a patient who had an unruptured aneurysm previously treated with clipping. Nevertheless, diagnostic workup can be more important than to keep in mind, that a SAH might be a PNSAH.

PMID: 28391019 [PubMed - as supplied by publisher]

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