Abstract:
BACKGROUND:Many studies demonstrate an association between brain damage and the extracellular release of catecholamines and amino acids during cerebral ischemia. While the clinical value of hypothermia during periods of compromised cerebral blood flow and oxygen delivery is well established, the role of anesthetic agents is less clear. Furthermore, the interaction between these agents and hypothermia remains to be elucidated. The purpose of this study was to examine the interactive effects of temperature, sodium thiopental (STP) and etomidate (ETOM) on extracellular neurotransmitter accumulation in the rat corpus striatum during cerebral ischemia. METHODS:Animals were randomly assigned to one of six subgroups: normal saline (NS-norm, pericranial t approximately equal to 37 degrees C, and NS-hypo, t=30 degrees C), etomidate (ETOM-norm and ETOM-hypo), and sodium thiopental (STP-norm and STP-hypo). Microdialysis probes were inserted into the corpus striatum. Dopamine (DA), glutamate, 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) levels were measured. At zero minutes, animals received a 10-min infusion of STP (3 mg x kg(-1) x min(-1)), ETOM (0.6 mg x kg(-1) x min(-1)), or NS. Prior to ischemia, animals were given either intravenous STP (10 mg x kg(-1)), ETOM (3 mg x kg(-1)), or NS in bolus form. Each animal was then subjected to 10 min of forebrain ischemia (Is1) followed by a reperfusion interval (Rep1). The entire sequence was then repeated. RESULTS:There were significant interactions between temperature and drug for DA (Is1, P=0.006, Is2, P=0.032) and its metabolites (DOPAC, Is1 P=0.01, HVA, Is1 P=0.03), and for glutamate (Is1, P=0.03, Is2 P=0.06). The nature of this interaction differed for DA and glutamate. The reduction in DA accumulation seen during hypothermia was offset by the addition of either STP or ETOM, whereas the addition of these drugs did not affect the reduced glutamate levels seen with hypothermia. During normothermia, STP and ETOM resulted in diminished DA accumulation compared to controls, yet they increased the accumulation of extracellular glutamate. CONCLUSIONS:Consistent with other studies, hypothermia was associated with diminished extracellular DA concentrations during forebrain ischemia. However, depending on the temperature condition, the addition of STP or ETOM in our forebrain ischemia model led to unexpected findings. The administration of these agents during normothermia diminished ischemia-induced DA accumulation yet resulted in significantly higher concentrations of extracellular glutamate. In contrast, STP and ETOM during hypothermia were noted to significantly offset the DA-reducing effects of hypothermia.
journal_name
Acta Anaesthesiol Scandjournal_title
Acta anaesthesiologica Scandinavicaauthors
Lesser JB,Koorn R,Vloka JD,Kuroda MM,Thys DMdoi
10.1034/j.1399-6576.1999.431004.xsubject
Has Abstractpub_date
1999-11-01 00:00:00pages
989-98issue
10eissn
0001-5172issn
1399-6576journal_volume
43pub_type
杂志文章abstract:BACKGROUND:Sevoflurane post-conditioning (SpostC) protects young hearts against ischemia-reperfusion injury. It is unknown whether the infarct-limiting effect is also maintained in aged cohorts and whether there are age-associated differences in the underlying mechanisms. METHODS:Young or old rats were randomly subjec...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12156
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:In this systematic review, we evaluated double-blind, randomized and controlled trials on the effect of wound infiltration with local anesthetics compared with the effect of placebo on post-operative pain after lumbar spine surgery. METHODS:Medline, the Cochrane Library and Google Scholar were searched for ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,meta分析,评审
doi:10.1111/j.1399-6576.2011.02629.x
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:In Finland, approximately 40% of emergency medical service (EMS) missions do not result in transport of the patient to a hospital by ambulance, and there is wide variability in the reasons underlying non-transport decisions. The aim of this study was to describe the context of these EMS non-transport mission...
journal_title:Acta anaesthesiologica Scandinavica
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doi:10.1111/aas.13071
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:The study assessed the efficacy and safety of dixyrazine, an alternative neuroleptic drug to droperidol, in the prophylaxis of postoperative nausea and vomiting (PONV). METHODS:A total of 197 patients scheduled for laparoscopic cholecystectomy under general anesthesia were randomized to receive either dixyr...
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.1399-6576.2004.00526.x
更新日期:2004-11-01 00:00:00
abstract:BACKGROUND:Traumatic rib fractures are a common condition associated with considerable morbidity and mortality. Observational studies have suggested improved outcome in patients receiving continuous epidural analgesia (CEA). The aim of the present systematic review of randomised controlled trials (RCTs) was to assess t...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/aas.12475
更新日期:2015-07-01 00:00:00
abstract::The psychological reactions to hospitalization, anaesthesia, and operation in a group of 107 children from 1 to 12 years old, anaesthetized with ketamine or halothane after randomization were investigated through questionnaires, which the parents answered 1 month postoperatively. The percentage of replies was 96.3%. F...
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.1399-6576.1977.tb01258.x
更新日期:1977-01-01 00:00:00
abstract:BACKGROUND:Intrathecal injection of sufentanil offers labour pain relief of short duration. This double-blind randomised study evaluates if the combination of adenosine to sufentanil could give relevant prolongation (40%) of the duration of sufentanil spinal analgesia. METHODS:Twenty-five healthy parturients requestin...
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:2003-05-01 00:00:00
abstract::A hypertensive patient with left cardiac enlargement developed marked hypertension under general anaesthesia, during which time a tourniquet was applied around his thigh. When the tourniquet was released, severe hypotension ensued which responded to therapy. The patient, however, died 16 h later of a myocardial infarc...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1987.tb02566.x
更新日期:1987-05-01 00:00:00
abstract::Axillary perivascular injection of 50 ml blue-stained gelatine was made in 20 cadavers, and a total dissection of the axilla was performed. The distribution of injected gelatine and the contact between nerves and gelatine were examined on cross-sections of the neurovascular bundle. The spread of gelatine was character...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1986.tb02359.x
更新日期:1986-01-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1984.tb02066.x
更新日期:1984-06-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1997.tb04709.x
更新日期:1997-03-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1981.tb01697.x
更新日期:1981-12-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1978.tb01291.x
更新日期:1978-01-01 00:00:00
abstract::The need to conserve a patient's own blood and avoid homologous transfusion is now well recognized. Therefore, techniques designed to reduce requirements for homologous blood transfusions have been developed. One of the methods is autotransfusion of shed mediastinal blood after open-heart surgery. The objectives of th...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1995.tb04230.x
更新日期:1995-11-01 00:00:00
abstract:BACKGROUND:There have been many studies regarding the etiology of postoperative cognitive dysfunction after coronary artery bypass graft (CABG) surgery. Although its etiology remains unresolved, one possible factor related to postoperative cognitive dysfunction is a reduced internal jugular venous oxygen hemoglobin sat...
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:2003-04-01 00:00:00
abstract:BACKGROUND:Epidural opioids are frequently combined with local anaesthetics for an additive antinociceptive effect. We investigated the efficacy of epidural fentanyl to 1.25 or 1.5 mg/ml ropivacaine for post-operative epidural analgesia in children. METHODS:One hundred and eight children undergoing hypospadias repair ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1399-6576.2009.02046.x
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:Medical emergency team (MET) activation criteria serve as a predictor of serious adverse events on hospital wards and in the emergency department (ED). We aimed to determine whether in-hospital MET activation criteria would be useful in identifying patients at risk in pre-hospital care. METHODS:The data wer...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12499
更新日期:2015-04-01 00:00:00
abstract::The effects of addition of 1 ml of lignocaine (10 mg) or isotonic saline to 19 ml of the emulsified preparation of propofol (Diprivan) were studied in a randomised, double-blind trial in 80 patients. The incidence and severity of pain on injection of propofol were significantly reduced by the addition of lignocaine (P...
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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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1988.tb02700.x
更新日期:1988-02-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,随机对照试验
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更新日期:2009-05-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1399-6576.2006.01047.x
更新日期:2006-07-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2001.450115.x
更新日期:2001-01-01 00:00:00
abstract::E. coli LPS was infused (1 microgram/kg to 5 mg/kg over 30 min) to spontaneously breathing rabbits, and their arterial blood pressure (ABP), blood leukocyte count and blood gases were observed for 2.5-3.5 h. Pulmonary vascular and airway function were subsequently evaluated in vitro by comparing weight changes, fluid ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1993.tb03725.x
更新日期:1993-05-01 00:00:00
abstract::This study compares the recovery from sufentanil and isoflurane anaesthesia in patients undergoing outpatient arthroscopy of the knee under general anaesthesia. In 40 unpremedicated patients, divided at random into two groups, anaesthesia was induced with methohexitone and vecuronium bromide and, after intubation, mai...
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:1987-02-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1991.tb03279.x
更新日期:1991-04-01 00:00:00
abstract:BACKGROUND:The aim of the study was to investigate the correlation between EEG indicators and clinical scores based on the RLS85 (Reaction Level Scale 85) in comatose patients. The results of a simple visual assessment of the EEG, using an arbitrary scale with typical EEG patterns, were compared with those obtained by ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1996.tb04540.x
更新日期:1996-08-01 00:00:00
abstract::The administration of glucocorticoids has been used to inhibit the cytokine production in patients undergoing cardiac surgery during cardiopulmonary bypass. In this case report the cytokine response in a 43-year-old man undergoing operation for an ACTH-producing lung tumor is presented. There had been clinical symptom...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1997.tb04686.x
更新日期:1997-02-01 00:00:00
abstract:BACKGROUND:Appropriate utilization of vancomycin is important to attain therapeutic targets while avoiding clinical failure and the development of antimicrobial resistance. Our aim was to observe the use of vancomycin in an intensive care population, with the main focus on achievement of therapeutic serum concentration...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12897
更新日期:2017-07-01 00:00:00
abstract::Venous air embolism during surgery is a rare but important complication and can be rapidly fatal. We present two cases of fatal air embolism in the prone position occurring in small children undergoing surgery for progressive scoliosis. Venous air embolism is a rare complication in the prone position. This is thought ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1997.tb04839.x
更新日期:1997-09-01 00:00:00
abstract:BACKGROUND:Depletion of the trace elements magnesium, phosphate and zinc is common in patients admitted to the intensive care unit (ICU). Observational studies have suggested worse outcome in patients with hypomagnesaemia, hypophosphataemia or hypozincaemia, but also inverse associations with worse outcome with too hig...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13468
更新日期:2020-01-01 00:00:00