Biomaterial Database

Subacute hydrocephalus after experimental subarachnoid hemorrhage: its prevention by intrathecal fibrinolysis with recombinant tissue plasminogen activator. 1992

T Brinker, and V Seifert, and H Dietz

Neurosurgical Department, Medical School, Hannover, Germany.

It is investigated whether intrathecal fibrinolysis may prevent subacute hydrocephalus after subarachnoid hemorrhage (SAH). In 19 cats, SAH was induced by the intracisternal infusion of 1 ml/kg body weight of fresh autologous blood at a rate of 0.6 ml/min. Eleven of those animals were treated by intrathecal fibrinolysis performed 24 hours after experimental SAH by intracisternal infusion of 3 mg of recombinant tissue plasminogen activator. Included were eight animals suffering from experimental SAH and four healthy animals retained for control. A computed tomographic scan performed 24 hours after the SAH displayed an acute hydrocephalus from the experimental procedure. Cerebrospinal fluid outflow resistance was 71 +/- 5.0 mm Hg/ml/min in the healthy animals, 265 +/- 19.8 mm Hg/ml/min in the nontreated animals 7 days after SAH, and 151 +/- 6.4 mm Hg/ml/min in the recombinant tissue plasminogen activator-treated animals 7 days after SAH (mean +/- standard deviation; changes significant with P less than 0.01). Postmortem planimetry of both lateral ventricles gives a mean of 3.7 +/- 2.7 mm2 in the healthy animals, 11.1 +/- 3.9 mm2 in the nontreated group after SAH (P less than 0.01), and 3.5 +/- 1.1 mm2 in the animals treated with recombinant tissue plasminogen activator. Intracranial pressure monitoring demonstrated marked intracranial pressure waves only in the nontreated animals after SAH. It is concluded that intrathecal fibrinolysis may prevent subacute hydrocephalus after experimental SAH.

UI	MeSH Term	Description	Entries
D007278	Injections, Spinal	Introduction of therapeutic agents into the spinal region using a needle and syringe.	Injections, Intraspinal,Injections, Intrathecal,Intraspinal Injections,Intrathecal Injections,Spinal Injections,Injection, Intraspinal,Injection, Intrathecal,Injection, Spinal,Intraspinal Injection,Intrathecal Injection,Spinal Injection
D007427	Intracranial Pressure	Pressure within the cranial cavity. It is influenced by brain mass, the circulatory system, CSF dynamics, and skull rigidity.	Intracerebral Pressure,Subarachnoid Pressure,Intracerebral Pressures,Intracranial Pressures,Pressure, Intracerebral,Pressure, Intracranial,Pressure, Subarachnoid,Pressures, Intracerebral,Pressures, Intracranial,Pressures, Subarachnoid,Subarachnoid Pressures
D008297	Male		Males
D010959	Tissue Plasminogen Activator	A proteolytic enzyme in the serine protease family found in many tissues which converts PLASMINOGEN to FIBRINOLYSIN. It has fibrin-binding activity and is immunologically different from UROKINASE-TYPE PLASMINOGEN ACTIVATOR. The primary sequence, composed of 527 amino acids, is identical in both the naturally occurring and synthetic proteases.	Alteplase,Plasminogen Activator, Tissue-Type,T-Plasminogen Activator,Tissue-Type Plasminogen Activator,Actilyse,Activase,Lysatec rt-PA,TTPA,Tisokinase,Tissue Activator D-44,Lysatec rt PA,Lysatec rtPA,Plasminogen Activator, Tissue,Plasminogen Activator, Tissue Type,T Plasminogen Activator,Tissue Activator D 44,Tissue Type Plasminogen Activator
D011994	Recombinant Proteins	Proteins prepared by recombinant DNA technology.	Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
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
D002552	Cerebral Ventricles	Four CSF-filled (see CEREBROSPINAL FLUID) cavities within the cerebral hemispheres (LATERAL VENTRICLES), in the midline (THIRD VENTRICLE) and within the PONS and MEDULLA OBLONGATA (FOURTH VENTRICLE).	Foramen of Monro,Cerebral Ventricular System,Cerebral Ventricle,Cerebral Ventricular Systems,Monro Foramen,System, Cerebral Ventricular,Systems, Cerebral Ventricular,Ventricle, Cerebral,Ventricles, Cerebral,Ventricular System, Cerebral,Ventricular Systems, Cerebral
D005260	Female		Females
D006849	Hydrocephalus	Excessive accumulation of cerebrospinal fluid within the cranium which may be associated with dilation of cerebral ventricles, INTRACRANIAL HYPERTENSION; HEADACHE; lethargy; URINARY INCONTINENCE; and ATAXIA.	Communicating Hydrocephalus,Congenital Hydrocephalus,Obstructive Hydrocephalus,Post-Traumatic Hydrocephalus,Aqueductal Stenosis,Cerebral Ventriculomegaly,Fetal Cerebral Ventriculomegaly,Hydrocephalus Ex-Vacuo,Hydrocephaly,Aqueductal Stenoses,Cerebral Ventriculomegalies,Cerebral Ventriculomegalies, Fetal,Cerebral Ventriculomegaly, Fetal,Fetal Cerebral Ventriculomegalies,Hydrocephalus Ex Vacuo,Hydrocephalus Ex-Vacuos,Hydrocephalus, Communicating,Hydrocephalus, Congenital,Hydrocephalus, Obstructive,Hydrocephalus, Post-Traumatic,Post Traumatic Hydrocephalus,Stenoses, Aqueductal,Stenosis, Aqueductal,Ventriculomegalies, Cerebral,Ventriculomegalies, Fetal Cerebral,Ventriculomegaly, Cerebral,Ventriculomegaly, Fetal Cerebral
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