Biomaterial Database

[Changes of visual evoked potentials in experimental occlusion of superior sagittal sinus in the cat]. 1992

K Tychmanowicz, and E Matysiak, and G Pawłowski

Kliniki Neurochirurgii ICMDiK PAN, Warszawie.

In the model of experimental occlusion of superior sagittal sinus (SSS) in 6 cats, the authors examined cerebral cortex activity by means of visual evoked potentials (VEP). They found shortening of latency of P2 wave potential in relation to the control by 5.5-13.3 msec, appearing after 4-6 hours following occlusion. Simultaneous cerebrospinal fluid pressure measurement indicated an increase in pressure following SSS occlusion from the control medium value 6.8 mmHg to 12-13 mmHg. Visual cortex in cat (area 17) is situated along the posterior portion of SSS. The occlusion of this vessel results in local haemostasis, which is likely to affect the physico-chemical properties of visual cortex cells, especially in the slow conducting system X (X cells can be found exclusively in area 17). The partial disappearance of this system activity results in reducing the signal and noticeable shortening of latency to peak P2 wave of VEP.

UI	MeSH Term	Description	Entries
D002415	Cats	The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)	Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D002550	Cerebral Veins	Veins draining the cerebrum.	Basal Vein,Pial Vein,Sylvian Vein,Thalamostriate Vein,Vein of Galen,Terminal Vein,Basal Veins,Cerebral Vein,Galen Vein,Pial Veins,Terminal Veins,Thalamostriate Veins,Vein, Basal,Vein, Cerebral,Vein, Pial,Vein, Sylvian,Vein, Terminal,Vein, Thalamostriate,Veins, Basal,Veins, Cerebral,Veins, Pial,Veins, Terminal,Veins, Thalamostriate
D003392	Cranial Sinuses	Large endothelium-lined venous channels situated between the two layers of DURA MATER, the endosteal and the meningeal layers. They are devoid of valves and are parts of the venous system of dura mater. Major cranial sinuses include a postero-superior group (such as superior sagittal, inferior sagittal, straight, transverse, and occipital) and an antero-inferior group (such as cavernous, petrosal, and basilar plexus).	Cranial Venous Sinuses,Intracranial Sinuses,Sinuses, Cranial,Sinuses, Cranial Venous,Sinuses, Intracranial,Venous Sinuses, Cranial
D005074	Evoked Potentials, Visual	The electric response evoked in the cerebral cortex by visual stimulation or stimulation of the visual pathways.	Visual Evoked Response,Evoked Potential, Visual,Evoked Response, Visual,Evoked Responses, Visual,Potential, Visual Evoked,Potentials, Visual Evoked,Response, Visual Evoked,Responses, Visual Evoked,Visual Evoked Potential,Visual Evoked Potentials,Visual Evoked Responses
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012851	Sinus Thrombosis, Intracranial	Formation or presence of a blood clot (THROMBUS) in the CRANIAL SINUSES, large endothelium-lined venous channels situated within the SKULL. Intracranial sinuses, also called cranial venous sinuses, include the superior sagittal, cavernous, lateral, petrous sinuses, and many others. Cranial sinus thrombosis can lead to severe HEADACHE; SEIZURE; and other neurological defects.	Cranial Sinus Thrombosis,Intracranial Sinus Thrombophlebitis,Petrous Sinus Thrombosis,Sinus Thrombosis,Venous Sinus Thrombosis, Cranial,Petrous Sinus Thrombophlebitis,Cranial Sinus Thromboses,Intracranial Sinus Thrombophlebitides,Intracranial Sinus Thromboses,Intracranial Sinus Thrombosis,Petrous Sinus Thrombophlebitides,Petrous Sinus Thromboses,Sinus Thrombophlebitides, Intracranial,Sinus Thrombophlebitides, Petrous,Sinus Thrombophlebitis, Intracranial,Sinus Thrombophlebitis, Petrous,Sinus Thromboses,Sinus Thromboses, Cranial,Sinus Thromboses, Intracranial,Sinus Thromboses, Petrous,Sinus Thrombosis, Cranial,Sinus Thrombosis, Petrous,Thrombophlebitides, Intracranial Sinus,Thrombophlebitides, Petrous Sinus,Thrombophlebitis, Intracranial Sinus,Thrombophlebitis, Petrous Sinus,Thromboses, Cranial Sinus,Thromboses, Intracranial Sinus,Thromboses, Petrous Sinus,Thromboses, Sinus,Thrombosis, Cranial Sinus,Thrombosis, Intracranial Sinus,Thrombosis, Petrous Sinus,Thrombosis, Sinus
D014793	Visual Cortex	Area of the OCCIPITAL LOBE concerned with the processing of visual information relayed via VISUAL PATHWAYS.	Area V2,Area V3,Area V4,Area V5,Associative Visual Cortex,Brodmann Area 18,Brodmann Area 19,Brodmann's Area 18,Brodmann's Area 19,Cortical Area V2,Cortical Area V3,Cortical Area V4,Cortical Area V5,Secondary Visual Cortex,Visual Cortex Secondary,Visual Cortex V2,Visual Cortex V3,Visual Cortex V3, V4, V5,Visual Cortex V4,Visual Cortex V5,Visual Cortex, Associative,Visual Motion Area,Extrastriate Cortex,Area 18, Brodmann,Area 18, Brodmann's,Area 19, Brodmann,Area 19, Brodmann's,Area V2, Cortical,Area V3, Cortical,Area V4, Cortical,Area V5, Cortical,Area, Visual Motion,Associative Visual Cortices,Brodmanns Area 18,Brodmanns Area 19,Cortex Secondary, Visual,Cortex V2, Visual,Cortex V3, Visual,Cortex, Associative Visual,Cortex, Extrastriate,Cortex, Secondary Visual,Cortex, Visual,Cortical Area V3s,Extrastriate Cortices,Secondary Visual Cortices,V3, Cortical Area,V3, Visual Cortex,V4, Area,V4, Cortical Area,V5, Area,V5, Cortical Area,V5, Visual Cortex,Visual Cortex Secondaries,Visual Cortex, Secondary,Visual Motion Areas
D015170	Cerebrospinal Fluid Pressure	Manometric pressure of the CEREBROSPINAL FLUID as measured by lumbar, cerebroventricular, or cisternal puncture. Within the cranial cavity it is called INTRACRANIAL PRESSURE.	Spinal Fluid Pressure,Cerebrospinal Fluid Pressures,Pressure, Cerebrospinal Fluid,Pressures, Cerebrospinal Fluid,Fluid Pressure, Cerebrospinal,Fluid Pressure, Spinal,Fluid Pressures, Cerebrospinal,Fluid Pressures, Spinal,Pressure, Spinal Fluid,Pressures, Spinal Fluid,Spinal Fluid Pressures