Dural Venous Sinus Variations in Idiopathic Subarachnoid Hemorrhage: A New Indicator of the Venous Origin with Diagnostic Usefulness?

Brugada-Bellsolà, Ferran; González-Crespo, Antonio; Pastor-Cabeza, Marta; Opacua, Alberto Blanco Ibáñez de; Remollo, Sebastián; Anglada-Oliván, Mireia; Misis, Maite; Domínguez, C.; Rimbau, Jordi; Rodríguez-Hernández, Ana

doi:10.1016/j.wneu.2021.09.052

Cited by 1 publication

(2 citation statements)

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“…In addition, dural sinus variations can be associated with PNSAH, including transverse sinus and superior petrosal sinus hypoplasia, inferior petrosal sinus and clival plexus hyperplasia. In Brugada-Bellsola et al's ( 34 ) report, more than three presentations of the above variant of the dural sinus were common in PNSAH. These abnormal anatomies may render the BVR susceptible to stretching and tearing against the tentorial edge, or the anomalies may change the draining pattern of BVR, thus leading to venous rupture ( 33 , 34 ).…”

Section: Definition and Variantmentioning

confidence: 94%

“…In Brugada-Bellsola et al's ( 34 ) report, more than three presentations of the above variant of the dural sinus were common in PNSAH. These abnormal anatomies may render the BVR susceptible to stretching and tearing against the tentorial edge, or the anomalies may change the draining pattern of BVR, thus leading to venous rupture ( 33 , 34 ).…”

Section: Definition and Variantmentioning

confidence: 94%

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Current status of perimesencephalic non-aneurysmal subarachnoid hemorrhage

Hou

2022

Front. Neurol.

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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.

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Section: Definition and Variantmentioning

confidence: 94%