Benign aqueduct stenosis in adults

Harrison, M. J. G.; Robert, C.; Uttley, David

doi:10.1136/jnnp.37.12.1322

Cited by 57 publications

(27 citation statements)

References 20 publications

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“…Earlier similar clinical conditions were termed LIAS (3,5,16,22,53) or simply aqueductal stenosis in adults (32,54). The latter involved only the time of the clinical onset and the cause of hydrocephalus (nontumoral aqueductal stenosis).…”

Section: What Is Lova?mentioning

confidence: 96%

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Gravitational Shunts in Longstanding Overt Ventriculomegaly in Adults

et al. 2005

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Unlike conventional differential pressure shunts, gravitational shunts can be used in the treatment of high-risk patients with longstanding overt ventriculomegaly in adults. Significant risk of overdrainage can be avoided. Gravitational shunts offer a viable alternative to endoscopic third ventriculostomy, provided the choice and adjustment of the shunt opening pressure is based on a correct assessment of the hydrostatic pressure to be compensated for.

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Section: What Is Lova?mentioning

confidence: 96%

“…Late-onset idiopathic aqueductal stenosis (LIAS) should be distinguished from the infantile form of aqueductal stenosis because the ability to absorb cerebrospinal fluid (CSF) is different (27). There are several studies of LIAS (3,5,22,32,53), but the majority of reports are from the era before magnetic resonance imaging (MRI).…”

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confidence: 98%

Gravitational Shunts in Longstanding Overt Ventriculomegaly in Adults

et al. 2005

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“…1 Patients with late-onset AS present with various clinical and radiologic features. [1][2][3] New theories have emerged about the pathogenesis of AS in adults, and venous hypertension has been suggested as the primary phenomenon responsible for ventricle dilation and aqueductal obstruction. 4 As a consequence, the determination of the underlying mechanism in hydrocephalus is relevant due to surgical implications because endoscopic third ventriculostomy (ETV) is mainly successful in obstructive hydrocephalus.…”

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confidence: 99%

Phase-Contrast MR Imaging Support for the Diagnosis of Aqueductal Stenosis

Sankari

Lehmann²,

Gondry-Jouet³

et al. 2008

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE:Patients with aqueductal stenosis (AS) present with various clinical and radiologic features. Conventional MR imaging provides useful information in AS but depends on a subjective evaluation by the neuroradiologist. The purpose of this study was to evaluate the support of the phase-contrast MR imaging (PC-MR imaging) technique (sensitive to CSF flows) for the diagnosis of AS.

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“…Clinically they confirmed previous experiences that when nontumoural aqueduct stenosis decompensates in the elderly it usually does so in a normal pressure hydrocephalus fashion. 12 In non-tumoural aqueduct stenosis, one of the contributing factors may be the following: it has been illustrated pathologically that in all forms of chronic hydrocephalus there is severe ependymal disruption and secondary subependymal gliotic reaction. 2938 We speculate that in some of our cases an increasingly narrowed aqueduct by ependymal granulation3940 may have finally led to functionally aqueduct incompetence.…”

Section: Resultsmentioning

confidence: 99%