The influence of intraventricular pressure on the size and shape of the anterior part of the third ventricle

1973 ◽  
Vol 5 (1) ◽  
pp. 33-36 ◽  
Author(s):  
P. Huber ◽  
R. Rivoir
Keyword(s):  
Anterior Part ◽  
Third Ventricle ◽  
Intraventricular Pressure ◽  
Size And Shape ◽  
The Third

Vasopressin in blood and third ventricle CSF of dogs in chronic experiments

1983 ◽  
Vol 245 (4) ◽  
pp. R541-R548 ◽  
Author(s):  
C. Simon-Oppermann ◽  
D. Gray ◽  
E. Szczepanska-Sadowska ◽  
E. Simon
Keyword(s):  
Cerebrospinal Fluid ◽  
Arginine Vasopressin ◽  
Anterior Part ◽  
Third Ventricle ◽  
Conscious State ◽  
Conscious Dogs ◽  
Inhalation Anesthesia ◽  
Blood Samples ◽  
The Third ◽  
Device Implantation

A device for chronic implantation was developed that allowed sampling of cerebrospinal fluid (CSF) from the anterior part of the third cerebral ventricle (A3V) of dogs in repeated experiments for up to 4 mo. Osmolalities, electrolyte concentrations, and concentrations of arginine vasopressin (AVP) measured with a radioimmunoassay were determined in repeated experiments on the chronically prepared animals under conditions of normal hydration, both in the conscious state and during inhalation anesthesia. In conscious dogs, AVP concentrations in plasma and CSF were 3.3 +/- 0.4 and 21.8 +/- 2.5 pg X ml-1, respectively. During anesthesia without surgical interference, the AVP concentrations in plasma and CSF were increased twofold above the levels obtained in conscious dogs. During the time of observation (180 min) all measured parameters remained constant. The AVP concentrations in plasma and CSF samples collected during the surgical procedure of device implantation were about 10-fold higher than in the samples collected during the conscious state. Thus, in each experimental condition, AVP concentration in the CSF collected from the A3V was consistently higher than that in the simultaneously collected blood samples.

Meningioma of the anterior part of the third ventricle

1981 ◽  
Vol 56 (3-4) ◽  
pp. 219-231 ◽  
Author(s):  
J. M. Cabezudo ◽  
J. Vaquero ◽  
R. Garc�a-de-Sola ◽  
E. Areitio ◽  
G. Bravo
Keyword(s):  
Anterior Part ◽  
Third Ventricle ◽  
The Third

Vertebrobasilar Dolichoectasia, Hypoplastic Third Ventricle, and Related Biventricular Hydrocephalus: Case Report and Review of the Literature

2021 ◽  
Author(s):  
Giuseppe Emmanuele Umana ◽  
Nicola Alberio ◽  
Francesca Graziano ◽  
Marco Fricia ◽  
Santino Ottavio Tomasi ◽  
...  
Keyword(s):  
Ventriculoperitoneal Shunt ◽  
Anterior Part ◽  
Oral Anticoagulants ◽  
Third Ventricle ◽  
Symptom Relief ◽  
Clinical History ◽  
The Third ◽  
Ideomotor Apraxia ◽  
Vertebrobasilar Dolichoectasia ◽  
History Of

Abstract Background Vertebrobasilar dolichoectasia (VBDE) is defined as a symptomatic dilatation and tortuosity of the vertebrobasilar arteries. The risk of hydrocephalus development is due to direct compression of the third ventricle outflow or brainstem compression and related aqueduct stenosis. We present an uncommon case of a patient with symptomatic VBDE with the uniqueness of a hypoplastic third ventricle associated with biventricular hydrocephalus. A literature review concerning diagnosis and management of patients affected by biventricular hydrocephalus caused by VBDE was also performed. Case Illustration We report a case of a 54-year-old man who presented with headache, ideomotor apraxia, and gait disorder. A head computed tomography (CT) scan showed a biventricular hydrocephalus and a subsequent CT angiography documented the presence of a VBDE compressing the anterior part of the third ventricle that also appeared hypoplastic. The patient also presented a clinical history of arterial hypertension for which he was given a proper pharmacologic treatment with symptom relief. A surgical treatment of ventriculoperitoneal shunt along with endoscopic septostomy was proposed, but the patient refused, probably due to the slightly positive response to medical treatment. Conclusions The natural clinical history of patients affected by VBDE is unfavorable with 7.8 years of median survival. The therapeutic strategy is usually conservative and the role of antiplatelets or oral anticoagulants is still debated. In selected patients, ventriculoperitoneal shunt to resolve intracranial hypertension caused by biventricular hydrocephalus is the most effective treatment. In our opinion, chronic third ventricle compression could lead to anatomic–pathologic alterations like the third ventricle hypoplasia documented in our report.

Comparative Anatomical Study on Operability in Surgical Approaches to the Anterior Part of the Third Ventricle

2016 ◽  
Vol 95 ◽  
pp. 457-463 ◽  
Author(s):  
Alfio Spina ◽  
Filippo Gagliardi ◽  
Michele Bailo ◽  
Nicola Boari ◽  
Anthony J. Caputy ◽  
...  
Keyword(s):  
Anterior Part ◽  
Third Ventricle ◽  
Anatomical Study ◽  
Surgical Approaches ◽  
The Third

scholarly journals Lesions at the Foramen of Monro Causing Obstructive Hydrocephalus

2021 ◽  
Author(s):  
Ashish Chugh ◽  
Sarang Gotecha ◽  
Prashant Punia ◽  
Neelesh Kanaskar
Keyword(s):  
Choroid Plexus ◽  
Intraventricular Hemorrhage ◽  
Anterior Part ◽  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Colloid Cyst ◽  
Subependymal Giant Cell Astrocytoma ◽  
Foramen Of Monro ◽  
The Third ◽  
Giant Cell Astrocytoma

The foramen of Monro has also been referred to by the name of interventricular foramen. The structures comprising this foramen are the anterior part of the thalamus, the fornix and the choroid plexus. Vital structures surround the foramen, the damage to which can be catastrophic leading to disability either temporary or permanent. In the literature it has been shown that tumors occurring in the area of interventricular foramen are rare and usually cause hydrocephalus. The operative approach depends upon the location of the tumor which can be either in the lateral or the third ventricle. Various pathologies which can lead to foramen of Monro obstruction and obstructive hydrocephalus include colloid cyst, craniopharyngioma, subependymal giant cell astrocytoma [SEGA], Neurocysticercosis, tuberculous meningitis, pituitary macroadenoma, neurocytoma, ventriculitis, multiseptate hydrocephalus, intraventricular hemorrhage, functionally isolated ventricles, choroid plexus tumors, subependymomas and idiopathic foramen of monro stenosis. In this chapter, we will discuss the various lesions at the level of foramen of Monro causing obstructive hydrocephalus and the management and associated complications of these lesions based on their type, clinical picture and their appearance on imaging.

Vasopressin in blood and third ventricle CSF during dehydration, thirst, and hemorrhage

1983 ◽  
Vol 245 (4) ◽  
pp. R549-R555 ◽  
Author(s):  
E. Szczepanska-Sadowska ◽  
D. Gray ◽  
C. Simon-Oppermann
Keyword(s):  
Cerebrospinal Fluid ◽  
Fluid Balance ◽  
Water Deprivation ◽  
Anterior Part ◽  
Third Ventricle ◽  
Venous Blood ◽  
Plasma Samples ◽  
The Third ◽  
Implanted Device ◽  
Modest Reduction

Samples of cerebrospinal fluid (CSF) were collected from the anterior part of the third cerebral ventricle of mongrel dogs with a chronically implanted device. Repeated experiments with simultaneous sampling of CSF and venous blood in 60- to 90-min intervals were performed in conscious dogs after 24-h water deprivation and during subsequent rehydration by drinking, during thirst stimulation by intravenous infusion of 5% saline, and during blood removal (12 ml X kg body wt-1). The CSF and plasma samples were analyzed for osmolality and arginine vasopressin (AVP) with a radioimmunoassay. Compared with normally hydrated dogs, 24-h water deprivation caused plasma AVP to rise significantly from 2.5 to 7.7 pg X ml-1 and CSF AVP from 24.2 to 31.3 pg X ml-1. Subsequent drinking significantly reduced plasma and CSF AVP. Thirst stimulation by hypertonic infusions was associated with rises of plasma and CSF AVP. Modest reduction of blood volume also increased both plasma and CSF AVP. Plasma AVP in each of the described physiological disturbances of salt or fluid balance was positively correlated with CSF AVP.

Vasopressin release and drinking induced by intracranial injection of angiotensin II in monkey

1979 ◽  
Vol 237 (1) ◽  
pp. R20-R25
Author(s):  
G. Simonnet ◽  
F. Rodriguez ◽  
F. Fumoux ◽  
P. Czernichow ◽  
J. D. Vincent
Keyword(s):  
Angiotensin Ii ◽  
Rhesus Monkeys ◽  
Preoptic Area ◽  
Anterior Part ◽  
Third Ventricle ◽  
Drinking Behavior ◽  
Intracerebral Injection ◽  
Vasopressin Release ◽  
The Third ◽  
Access To Water

The effects of intracerebral injection of angiotensin II (AII) on both water intake and arginine-vasopressin (AVP) release were tested on unanesthetized rhesus monkeys (Macaca mulatta). Injection of 10(-10) mol of peptide was administered with a cannula microinjection system stereotaxically implanted into different diencephalic structures. The preoptic area, anterior part of third ventricle, caudate nucleus, and septum appeared to be the injection sites most effective in eliciting both drinking behavior and AVP release when the animal did not have access to water. On the contrary, when water was presented, AVP release was blocked after AII microinjections in the preoptic area and the third ventricle. No drinking was observed after microinjection in the supraopticus nucleus although AVP release was stimulated. These data suggest that AII might be effective in the regulation of water balance by centrally controlling both the input (drinking) and the output (ADH secretion) of water.

scholarly journals Oligodendroglioma in the Anterior Part of the Third Ventricle

1983 ◽  
Vol 23 (2) ◽  
pp. 157-161 ◽  
Author(s):  
Shunichi YOKOYAMA ◽  
Kazumi MATSUDA ◽  
Hiroshi AWA ◽  
Tetsuhiko ASAKURA
Keyword(s):  
Anterior Part ◽  
Third Ventricle ◽  
The Third
Sign in / Sign up

Export Citation Format

Share Document