Subarachnoid Hemorrhage: Beyond Aneurysms

Marder, Carrie P.; Narla, Vinod V.; Fink, James R.; Fink, Kathleen R.

doi:10.2214/ajr.12.9749

Cited by 103 publications

(54 citation statements)

References 62 publications

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“…In approx. 5 % of cases, SAH has a different cause, such as dissection of the intracranial vertebral artery [16].…”

Section: Subarachnoid Hemorrhage Etiologymentioning

confidence: 99%

“…When there is clinical suspicion, the imaging method of choice ( • " Table 3) is CCT with CTA [15,16]. In non-enhanced CCT, the subarachnoid space appears hyper-dense in cases of SAH, whereas aneurysmal SAH is typically localized in the basal and ambient cisterns ( • " Fig.…”

Section: Imagingmentioning

confidence: 99%

“…Subarachnoid blood causes the intrathecal space to appear hyperintense in FLAIR [18]. In the primary diagnosis of SAH, CTA has replaced angiography using DSA, which as a rule is only still employed in cases of ambiguous CTA findings or as part of endovascular therapy [15,16]. If there is clinical suspicion of SAH, and in the absence of evidence of intracranial blood in the CT or MRI, the suspected diagnosis must be excluded or confirmed via lumbar puncture, since in such cases, spinal SAH must be considered [19].…”

Section: Imagingmentioning

confidence: 99%

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Radiological Diagnosis and Differential Diagnosis of Headache

Langner¹,

Kirsch

2015

Fortschr Röntgenstr

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Headache is very common and affects almost everyone at some point. It is one of the most common disorders that leads patients to see their physician. All different forms have the nociception via trigeminal nerve fibers in common. Beside the clinical course headaches are classified as either primary or secondary, with the latter having an identifiable structural or biochemical cause. Imaging has a low diagnostic yield in primary headache but play an important role in the differential diagnosis of secondary forms. An overview of different forms of secondary headache is given, outlining diagnostic procedures and the morphologic imaging features of each syndrome. Key points: ??Headache can be differentiated in primary and secondary forms. ??Imaging plays an important role in differential diagnosis of secondary forms. ??Imaging should be performed in patients with concomitant systemic or neurologic symptoms. Citation Format: ??Langner S, Kirsch M, Hosten N Radiological Diagnosis and Differentialdiagnosis of Headache. Fortschr R?ntgenstr 2015; 187: 879???891

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“…In approx. 5 % of cases, SAH has a different cause, such as dissection of the intracranial vertebral artery [16].…”

Section: Subarachnoid Hemorrhage Etiologymentioning

confidence: 99%

Section: Imagingmentioning

confidence: 99%

Section: Imagingmentioning

confidence: 99%

See 1 more Smart Citation

Radiological Diagnosis and Differential Diagnosis of Headache

Langner¹,

Kirsch

2015

Fortschr Röntgenstr

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“…Other causes of SAH should not be missed when the presence of an aneurysm has been ruled out, like cerebral vein thrombosis, amyloid angiopathy, or rupture of an intracranial vascular malformation [37]. It is noteworthy that in case of brain arteriovenous malformation (bAVM) rupture, the SAH is often associated with an intraparenchymal hemorrhage [38].…”

Section: Diagnostic Imaging Diagnosis Of Sahmentioning

confidence: 99%

Aneurysmal Subarachnoid Hemorrhage

Clarençon¹,

Sourour²,

Degos³

et al. 2015

Neurovascular Imaging

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Intracranial aneurysms are a non-exceptional disease affecting 1-3 % of the general population. The incidence of aneurysmal subarachnoid hemorrhage (SAH) is about 1/10,000/year. Aneurysmal SAH is a devastating disease leading to death approximately in 50 % of the cases and to neurological sequels in about 25 % of the cases. Management of aneurysmal SAH consists in early exclusion of the aneurysm's sac either by endovascular means or by microsurgical clipping. Intensive care management is of tremendous importance to treat SAH-related complications like hydrocephalus and to prevent delayed complications such as vasospasm. Current perspectives for intracranial aneurysms management consist in a better selection of the unruptured aneurysms to treat, in order to propose a preventive treatment of exclusion before they bleed.

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“…The impairment of cerebral autoregulation and decreased blood flow results in delayed ischemic injury. Angiographic vasospasm is identified in 70% of the patients while 40% have clinical vasospasm, and delayed ischemic injury is seen in 30% of the patients (21,48).…”

Section: █ Introductionmentioning

confidence: 99%

Predictive role of external carotid artery vasospasm on cerebral ischemia in subarachnoid hemorrhage: experimental study

Ng¹,

Aydın²,

Yolaş³

et al. 2016

Turkish Neurosurgery

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AIm: Cerebral vasospasm after subarachnoid hemorrhage (SAH) may lead to a devastating neurological outcome by inducing cerebral ischemia. However the role of external carotid artery (ECA) vasospasm has been rarely reported in the literature. The aim of this study was to elucidate the effect of ECA vasospasm on cerebral ischemia related neurodegeneration in the cerebral cortex after SAH. mATERIAl and mEThODS:This study was performed on 23 rabbits, divided into three groups: control (n=5), sham (n=5), and SAH (n=13). Experimental SAH was performed by injecting 0.75 mL auricular arterial homologous blood into the cisterna magna. After three weeks, the animals were decapitated and the common carotid arteries with their external and internal branches and the brains were examined histopathologically. Vasospasm indexes (VSI) of ECAs and internal carotid arteries (ICAs) and degenerated glial cell numbers of temporal cortices (n/mm 3 ) were estimated stereologically and the results were compared statistically. CONClUSION: ECA vasospasm was observed to have a more important predictive role on the serious cerebral ischemia and neuronal degeneration after SAH. The mechanism may be related to ischemia of the parasympathetic ganglia of the lower cranial nerves and dorsal root ganglion. RESUlTS

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Subarachnoid Hemorrhage: Beyond Aneurysms

Cited by 103 publications

References 62 publications

Radiological Diagnosis and Differential Diagnosis of Headache

Radiological Diagnosis and Differential Diagnosis of Headache

Aneurysmal Subarachnoid Hemorrhage

Predictive role of external carotid artery vasospasm on cerebral ischemia in subarachnoid hemorrhage: experimental study

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