Abstract:
BACKGROUND:Mivazerol (MIV) is an alpha 2-adrenoceptor agonist designed to prevent adverse cardiac outcome in perioperative patients. The present study was undertaken to determine whether the hyperdynamic state observed at emergence from halothane (HAL) anesthesia in rats could be modulated by MIV and to explore the mode of action of MIV under such conditions. METHODS:Male Sprague Dawley rats were anesthetized with 1% HAL and assisted for respiration (N2O-O2: 70-30%). MIV 2.2-15.3 micrograms.kg-1.h-1 i.v. was infused 30 min before withdrawal of anesthesia and compared for heart rate (HR) and systolic arterial blood pressure (SAP) to control animals treated with saline. In some experiments, animals were pretreated with intrathecal pertussis toxin (T2 level, 0.5 microgram, 7 d), or i.v. rauwolscine (0.34 mg/kg, 5 min) or were bilaterally stellectomized (30 min) prior to withdrawal of HAL. RESULTS:Increases in HR (65 bpm, +20%) and in SAP (25 mmHg, +26%) were observed immediately upon discontinuation of HAL and remained constant for at least 30 min. The increase in HR was abolished by removal of the stellate ganglia. MIV dose-dependently inhibited the increase in HR from 4.8 micrograms.kg-1.h-1 (68% reduction, P < 0.05) without affecting HR or SAP during anesthesia. Inhibition of HR increase was of 98% at 15.3 micrograms.kg-1.h-1. This effect was abolished by rauwolscine, and partially (50%) inhibited by pertussis toxin pre-treatment. CONCLUSION:These results demonstrate that withdrawal of HAL anesthesia in the rat produces a sustained increase in HR due to activation of the sympathetic system and that MIV inhibits this tachycardia via activation of alpha 2-adrenoceptors located at least in part in the spinal cord.
journal_name
Acta Anaesthesiol Scandjournal_title
Acta anaesthesiologica Scandinavicaauthors
Guyaux M,Gobert J,Noyer M,Vandevelde M,Wülfert Edoi
10.1111/j.1399-6576.1998.tb05116.xsubject
Has Abstractpub_date
1998-02-01 00:00:00pages
238-45issue
2eissn
0001-5172issn
1399-6576journal_volume
42pub_type
杂志文章abstract::We encountered two cases of acute pancreatitis in patients with Cushing's disease following transnasal transsphenoidal hypophysectomy. In both cases propofol was used in bolus doses, and is thought to be the probable factor for its development. Since elevated cortisol levels in Cushing's disease poses a threat for pan...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2005.00751.x
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:Post-operative catheter-related bladder discomfort (CRBD) causes increased emergence agitation. Muscarinic receptor activation is a major mechanism in CRBD development. Experimental studies showed that sevoflurane has anti-muscarinic effects whereas propofol does not. Our hypothesis was that sevoflurane anae...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,随机对照试验
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abstract::Inhalation anaesthetic agents are known to depress phagocytic functions such as mobilization, attachment, chemotactic motility, engulfment and intracellular killing. Mannose-specific sugar receptors on the surface of leukocytes are involved in a series of phagocytosis-related activities. To investigate the effect of a...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1990.tb03087.x
更新日期:1990-05-01 00:00:00
abstract:BACKGROUND:The paucity of studies regarding cognitive function in patients with chronic pain, and growing evidence regarding the cognitive effects of pain and opioids on cognitive function prompted us to assess cognition via neuropsychological measurement in patients with chronic non-cancer pain treated with opioids. ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2012.02760.x
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abstract::The duration of action of mivacurium was evaluated during a modified neurolept anaesthesia in 17 patients heterozygous for the usual and the atypical plasma cholinesterase (pChe) gene (E1uE1a) and in five patients homozygous for the atypical gene (E1aE1a). The response to train-of-four nerve stimulation was recorded u...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1993.tb03721.x
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1995.tb04101.x
更新日期:1995-05-01 00:00:00
abstract::The clinical effects and pharmacokinetics of 24 h infusion of midazolam (MDZ) during major maxillofacial surgery and postoperative observation in an Intensive Care Unit (ICU) were studied in 20 patients. During anaesthesia, infusion of MDZ at 5 mg/h combined with 67% nitrous oxide, 1.8 (s.d. = 0.8) mg of fentanyl, and...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1989.tb02872.x
更新日期:1989-02-01 00:00:00
abstract::Central circulation, renal function, and fluoride formation and excretion were studied in nine patients during enflurane anaesthesia and surgery. Cardiac output and mean systemic arterial pressure remained unchanged compared with preoperative control values. During anaesthesia and surgery, urine flow rate, inulin clea...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1979.tb01473.x
更新日期:1979-10-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1991-07-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13644
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doi:10.1111/j.1399-6576.2004.00445.x
更新日期:2004-09-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1992-10-01 00:00:00
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更新日期:2011-05-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1985-04-01 00:00:00
abstract:BACKGROUND:Mechanical ventilation (MV) can result in inflammation and subsequent lung injury. Toll-like receptor (TLR)4 and NF-κB are proposed to play a crucial role in the MV-induced inflammatory response. Resveratrol (RVT) exhibits anti-inflammatory effects in vitro and in vivo supposedly by interfering with TLR4 sig...
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pub_type: 杂志文章
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1984.tb02095.x
更新日期:1984-08-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/j.1399-6576.1980.tb01587.x
更新日期:1980-12-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1976.tb05011.x
更新日期:1976-01-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2006.01083.x
更新日期:2006-08-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2008-03-01 00:00:00
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pub_type: 指南,杂志文章,实务指引,评审
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更新日期:2005-09-01 00:00:00
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pub_type: 评论,杂志文章
doi:10.1111/aas.12715
更新日期:2016-08-01 00:00:00
abstract::Regional microcirculatory differences in the superficial renal cortex were studied before and during 4 h following 60 min of renal ischaemia in seven pigs under continuous intravenous chlormethiazole-pancuronium anaesthesia. Superficial renal cortical blood flow (Qsrc) was measured by laser Doppler flowmetry (LDF) in ...
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pub_type: 杂志文章
doi:10.1111/j.1399-6576.1991.tb03332.x
更新日期:1991-08-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/aas.13527
更新日期:2020-04-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2006.01101.x
更新日期:2006-11-01 00:00:00
abstract::Fifty patients with chronic resistant cervicobrachialgia were randomly divided into two groups. Twenty-five patients (group A) were treated with cervical epidural steroid/lidocaine injections and 17 patients (group B) were treated with steroid/lidocaine injections into the posterior neck muscles. Another eight patient...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1399-6576.1993.tb03765.x
更新日期:1993-08-01 00:00:00