Monitor de profundidade da hipnose. A eletroencefalografia bispectral

Vianna, Pedro Thadeu Galvão

doi:10.1590/s0034-70942001000500008

Cited by 4 publications

(2 citation statements)

References 19 publications

(16 reference statements)

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“…26 Blood volume losses, greater than 20% would be needed to cause sinus tachycardia and a decrease in blood pressure. 27,28 A limitation of this study is that no specific equipment was used to monitor the depth of anesthesia (BIS), and also the possible correlation with the control of hemodynamic disorders caused by nociceptive stimuli (29)(30)(31)(32)(33).…”

Section: Discussionmentioning

confidence: 99%

Dexmedetomidine in anesthesia of children submitted to videolaparoscopic appendectomy: a double-blind, randomized and placebo-controlled study

Smania¹,

Piva²,

García³

2008

Rev. Assoc. Med. Bras.

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SUMMARY OBJECTIVES.To evaluate the hemodynamic responses to nociceptive stimuli in children submitted to videolaparoscopic appendectomy under balanced anesthesia with isoflurane and dexmedetomidine. METHODS. Randomized, double-blind and placebo-controlled study involving 26 children submitted to videolaparoscopic appendectomy carried out at Hospital São Lucas (PUCRS) between May 2004 and February 2005. Patients were assigned to two groups: (a) Dexmedetomidine group (n=13): infusion of 1μg/kg over 10 minutes and maintenance dose of 0.5μg/kg/ h) as an adjuvant to inhaled isoflurane anesthesia; (b) Control group (n=13): normal saline infusion at a similar rate and volume of the dexmedetomidine infusion. During the different surgical and anesthetic periods, groups were compared regarding heart rate, systolic and diastolic arterial blood pressures as well as need of supplemental fentanyl infusion. Student's t test, ANOVA, and Finner's procedure were used for statistical analysis. RESULTS. During the strongest nociceptive stimuli (airway access and abdominal catheter placement), the heart rate and systolic blood pressure increased significantly (p<0.001) in the control group compared to the dexmedetomidine group. Compared to baseline levels, the hemodynamic responses to nociceptive stimuli were more stable when dexmedetomidine was used in combination with inhaled isoflurane anesthesia. The need for supplemental doses of fentanyl and the hemodynamic parameters were similar for both groups. CONCLUSION. Dexmedetomidine combined with inhaled isoflurane for anesthesia of children submitted to videolaparoscopic appendectomy, efficiently blocks the hemodynamic responses to nociceptive stimuli. When compared to placebo, the use of dexmedetomidine did not change the need for supplemental doses of fentanyl for maintenance of hemodynamic parameters during the intraoperative period.

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Section: Discussionmentioning

confidence: 99%

Dexmedetomidine in anesthesia of children submitted to videolaparoscopic appendectomy: a double-blind, randomized and placebo-controlled study

Smania¹,

Piva²,

García³

2008

Rev. Assoc. Med. Bras.

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“…O EEG digitalizado pode ser matematicamente transformado pelo processo conhecido como análise de Fourier, que separa o complexo sinal do EEG em vários componentes de onda, ou seja, em cada porção de di-ferente amplitude, mas cuja soma corresponde à forma original da onda. Com o emprego deste método, surgem vários parâmetros de avaliação 5 .…”

Section: Revisão Introduçãounclassified

Análise do Uso do Eletroencefalograma e do Índice Bispectral na Unidade de Terapia Intensiva

Queiroz

Holanda

Maia³

et al. 2001

Rev Neurocienc

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Rev Neurocienc 2012;20(2):302-310 revisão 302 RESUMO Este trabalho revisa as atuais e futuras aplicações da eletrencefalografia contínua (EEGc) e do índice bispectral para monitorar a função e fisiologia cerebral de pacientes com patologia neurológica aguda grave em unidade de terapia intensiva (UTI). Em pacientes comatosos a EEGc pode fornecer informação inalcançável por outros métodos, influenciar a administração terapêutica, além de ajudar a determinar o prognóstico de pacientes com lesão cerebral aguda. Esta técnica é a mais indicada para detecção de crises convulsivas subclínicas, que podem frequentemente ocorrer durante ou depois do tratamento do estado de mal epiléptico e depois de muitos tipos de lesões cerebrais agudas, particularmente o trauma. EEGc pode detectar isquemia cerebral focal, tal como aquela causada por vasoespasmo em consequência da hemorragia subaracnóidea, tanto como isquemia global relacionada com a elevação da pressão intracraniana e pressão de perfusão cerebral insuficiente. Outras potenciais aplicações incluem prognóstico do coma, mensuração da terapia sedativa continuamente infundida. ABSTRACTThis paper reviews the current and future applications of continuous electroencephalography (cEEG) and bispectral index to monitor brain function and physiology of patients with acute neurological disease in the intensive care unit (ICU). In comatose patients, cEEG may provide otherwise unobtainable information and influence therapeutic management, and also help determine the prognosis of patients with acute brain injury. This technique is best used for the detection of subclinical seizures, which may frequently occur during or after treatment of convulsive status epilepticus and after many types of acute brain injury, particularly trauma. The other main application of cEEG is as a primary monitor of brain function. cEEG can detect focal cerebral ischemia, such as that caused by vasospasm after subarachnoid hemorrhage, as well as global ischemia related to intracranial pressure elevation and insufficient cerebral perfusion pressure. Other potential applications include prognostication in coma and titration of continuous infusion sedative therapy.

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Nitrous Oxide Attenuates Pressor but Augments Norepinephrine Response to Laryngoscopy and Endotracheal Intubation

Yoo

Jeong²,

Ha³

et al. 2003

Anesthesia & Analgesia

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Monitor de profundidade da hipnose. A eletroencefalografia bispectral

Abstract: RESUMO

Cited by 4 publications

References 19 publications

Dexmedetomidine in anesthesia of children submitted to videolaparoscopic appendectomy: a double-blind, randomized and placebo-controlled study

Dexmedetomidine in anesthesia of children submitted to videolaparoscopic appendectomy: a double-blind, randomized and placebo-controlled study

Análise do Uso do Eletroencefalograma e do Índice Bispectral na Unidade de Terapia Intensiva

Nitrous Oxide Attenuates Pressor but Augments Norepinephrine Response to Laryngoscopy and Endotracheal Intubation

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