aqueduct stenosis

Narrowing of the aqueduct of Sylvius between the two central fluid spaces of the brain, the third and fourth ventricles. This is the cause of ‘water on the brain’ (HYDOCEPHALUS) in about one third of cases. There are many causes including ENCEPHALITIS, MENINGITIS, TOXOPLASMOSIS, NEUROFIBROMATOSIS and the Chiari malformation, and it may be genetically induced.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

References in periodicals archive

Due to the suspicion of aqueduct stenosis and concerns about the patient's baseline elevation of CPK level (5,055 unit/L), the decision was made to treat with an ETV and CPC over placement of a ventriculoperitoneal shunt.

We had high suspicion of aqueduct stenosis on the MRI study, supporting our plan to achieve success utilizing ETV along with CPC.

A Successful Treatment of Endoscopic Third Ventriculostomy with Choroid Plexus Cauterization for Hydrocephalus in Walker-Warburg Syndrome

Since the indications for ETV are not only permanently increasing, but also constantly adjusting and getting re-tailored [1,2], they nowadays, apart from cerebral aqueduct stenosis, includes many clinical conditions with underlying disturbance of cerebrospinal fluid (CSF) hydrodynamics, such as in patients with posterior fossa tumors and cysts [6], communicating hydrocephalus [7], normal pressure hydrocephalus [8], and in patients with previous ventriculoperitoneal shunts failure [9], but lately also in the hydrocephalic patients with achondroplasia [10].

Dynamic magnetic resonance imaging of endoscopic third ventriculostomy patency with differently acquired fast imaging with steady-state precession sequences

There were 15 patients with congenital aqueduct stenosis, 15 patients with posthemorrhagic hydrocephalus, 7 patients with postinfectious hydrocephalus, and 5 patients with Chiari malformation associated hydrocephalus in our group.

Endoscopic third ventriculostomy in previously shunted children

The most common cause of IVOH is aqueduct stenosis or blockage between the third and fourth ventricles, and this type of stenosis is known as the Dandy-Walker malformation.[3] The condition usually is congenital.

Hydrocephalus: diagnosis and treatment