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Imprime registro no formato completo
Bispectral index in dogs with high intracranial pressure, anesthetized with propofol and submitted to two levels of FiO2 Arq. Bras. Med. Vet. Zootec.
Lopes,P.C.F.; Nunes,N.; Dias,L.G.G.G.; Pereira Neto,G.B.; Almeida,R.M.; Souza,A.L.G.; Belmonte,E.A..
The effects of inspired oxygen fractions (FiO2) of 1 and 0.6 on bispectral index (BIS) in dogs with high intracranial pressure, submitted to a continuous rate infusion of propofol were evaluated. Eight dogs were anesthetized on two occasions, receiving, during controlled ventilation, an FiO2 = 1 (G100) or an FiO2 = 0.6 (G60). Propofol was used for induction (10mg.kg-1, IV), followed by a continuous rate infusion (0.6mg.kg-1.minute-1). After 20 minutes, a fiber-optic catheter was implanted on the surface of the right cerebral cortex to monitor the intracranial pressure, the baseline measurements of BIS values, signal quality index, suppression ratio number, electromyogram indicator, end-tidal carbon dioxide partial pressure, mean arterial pressure,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bispectral index; Dog; Intracranial pressure; Inspired oxygen fraction; Propofol.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000600012
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Detection of acute cerebral hemorrhage in rabbits by magnetic induction BJMBR
Sun,J.; Jin,G.; Qin,M.X.; Wan,Z.B.; Wang,J.B.; Wang,C.; Guo,W.Y.; Xu,L.; Ning,X.; Xu,J.; Pu,X.J.; Chen,M.S.; Zhao,H.M..
Acute cerebral hemorrhage (ACH) is an important clinical problem that is often monitored and studied with expensive devices such as computed tomography, magnetic resonance imaging, and positron emission tomography. These devices are not readily available in economically underdeveloped regions of the world, emergency departments, and emergency zones. We have developed a less expensive tool for non-contact monitoring of ACH. The system measures the magnetic induction phase shift (MIPS) between the electromagnetic signals on two coils. ACH was induced in 6 experimental rabbits and edema was induced in 4 control rabbits by stereotactic methods, and their intracranial pressure and heart rate were monitored for 1 h. Signals were continuously monitored for up to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acute cerebral hemorrhage; Magnetic induction phase shift; Electromagnetic properties of biological tissues; Intracranial pressure.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000200144
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Implications of ischemic penumbra for the diagnosis of brain death BJMBR
Coimbra,C.G..
The data reviewed here suggest the possibility that a global reduction of blood supply to the whole brain or solely to the infratentorial structures down to the range of ischemic penumbra for several hours or a few days may lead to misdiagnosis of irreversible brain or brain stem damage in a subset of deeply comatose patients with cephalic areflexia. The following proposals are advanced: 1) the lack of any set of clinically detectable brain functions does not provide a safe diagnosis of brain or brain stem death; 2) apnea testing may induce irreversible brain damage and should be abandoned; 3) moderate hypothermia, antipyresis, prevention of arterial hypotension, and occasionally intra-arterial thrombolysis may contribute to good recovery of a possibly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ischemic penumbra; Cerebral ischemia; Intracranial pressure; Traumatic brain injury; Brain death; Hypothermia; Thrombolysis; Apnea test.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001200005
Registros recuperados: 3
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