Quadrigeminal perimesencephalic subarachnoid hemorrhage

Wallace, Adam N.; Vyhmeister, Ross; Viets, Ryan; Whisenant, Justin T; Chatterjee, Arindam; Kansagra, Akash P.; Cross, DeWitte T.; Moran, Christopher J.; Derdeyn, Colin P.

doi:10.1016/j.clineuro.2015.06.018

Cited by 4 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Quadrigeminal SAH can be a variant of PNSAH, which has been previously described, is characterized by blood centered in the quadrigeminal cistern ( 17 ). Quadrigeminal SAH may account for up to 20% of PNSAHs and carries a similar clinical course as PNSAH ( 17 , 18 ).…”

Section: Definition and Variantmentioning

confidence: 99%

Current status of perimesencephalic non-aneurysmal subarachnoid hemorrhage

Hou

2022

Front. Neurol.

View full text Add to dashboard Cite

Perimesencephalic nonaneurysmal subarachnoid hemorrhage (PNSAH) is a distinctive disease, representing SAH centered in perimesencephalic cisterns, with negative angiography findings. In recent years, the number of patients with PNSAH has increased significantly; however, the knowledge of PNSAH is insufficient. Therefore, we performed a review of the literature from a PubMed search and recounted our understanding of PNSAH. In this review, we summarized that current high-resolution computed tomography angiography is an acceptable replacement for digital subtraction angiography to rule out aneurysms in PNSAH with strict criteria. The current hypothesis about the etiology of PNSAH is that there is deep vein rupture from aberrant venous anatomy and increased intracranial venous pressure. PNSAH is associated with mild symptoms and lower rates of hydrocephalus and symptomatic vasospasm. For PNSAH, conservative treatment has been the mainstream treatment. PNSAH has a benign clinical course and an excellent prognosis; in long-term follow-up, re-bleeding and death were uncommon.

show abstract

Section: Definition and Variantmentioning

confidence: 99%

Current status of perimesencephalic non-aneurysmal subarachnoid hemorrhage

Hou

2022

Front. Neurol.

View full text Add to dashboard Cite

show abstract

“…Nonetheless, nonaneurysmal perimesencephalic hemorrhages with blood centered in the quadrigeminal cistern have been reported, with a similar proposed etiology and course to that of the classic pretruncal variant. 6 A case of PRES has been described in association with perimesencephalic SAH with no evidence of vasospasm. 7 The pathophysiologic mechanism of SAH in RCVS remains unknown, but abrupt stretching of vessel walls with or without small vessel rupture, or reperfusion injury have been proposed as possible mechanisms.…”

mentioning

confidence: 99%