Recurrent perimesencephalic nonaneurysmal subarachnoid hemorrhage within a short period of time: A case report

paythelady.612 shared this article with you from Inoreader Recurrent perimesencephalic nonaneurysmal subarachnoid hemorrhage within a short period of time: A case report Μέσω pubmed: "world j clin cases"... World J Clin Cases. 2021 May 16;9(14):3356-3364. doi: 10.12998/wjcc.v9.i14.3356. ABSTRACT BACKGROUND: Spontaneous subarachnoid hemorrhage (SAH) is primarily caused by a ruptured intracranial aneurysm. Perimesencephalic nonaneurysmal SAH (PNSAH) accounts for approximately 5% of all spontaneous SAH. PNSAH displays favorable prognosis. The risk of hemorrhage recurrence is low. We report a case of PNSAH recurrence, occurring within a short time after the initial episode in a patient not receiving antithrombotic or antiplatelet drugs. CASE SUMMARY: A 66-year-old male, without any history of recent trauma or antithrombotic/ antiplatelet medication, suffered two similar episodes of sudden onset of severe headache, nausea, and vomiting. A plain head computed tomography (CT) scan showed subarachnoid blood confined to the anterior part of the brainstem. Platelet count and coagulation function were normal. PNSAH was diagnosed by repeated he ad CT, magnetic resonance imaging, and cerebral angiography, none of which revealed the source of SAH. The patient was discharged without focal neurological deficits. At 6-mo follow-up, the patient had experienced no sudden onset of severe headache and presented favorable clinical outcome. Studies have reported a few patients with recurrent PNSAH, originating frequently from venous hemorrhage and conventionally associated with venous abnormalities. PNSAH recurs within a short time following the initial onset of symptoms, although the possibility of re-hemorrhage is extremely rare. CONCLUSION: PNSAH recurrence should arouse vigilance; however, the definite source of idiopathic SAH in this case report deserves further attention. PMID:34002145 | PMC:PMC8107889 | DOI:10.12998/wjcc.v9.i14.3356 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.