Abstract:
BACKGROUND:Movement responses are an important indicator of noxious perception in the unconscious state. To allow for a continual monitoring of the responsiveness to noxious stimuli during general anaesthesia, surrogate parameters are needed. Here we compare the performance of the bispectral index (BIS) and the RIII threshold in predicting reactions to noxious stimuli during anaesthesia with propofol and remifentanil. METHODS:Twenty male volunteers were included. The first 10 subjects received constant concentrations of propofol while remifentanil concentrations were increased stepwise. The other 10 subjects each received high propofol concentrations combined with different low remifentanil concentrations and also low propofol concentrations combined with different high remifentanil concentrations. In all subjects, the reactions to an 80 mA 30 s tetanic stimulus were tested every 5 min. BIS and RIII threshold were recorded continually in all subjects. RESULTS:Nineteen subjects completed the study. The population prediction probability for reactions to the noxious stimuli amounted to 0.86 for the BIS and to 0.84 for the RIII threshold in the first 10 subjects (P>0.05, PKDMACRO). In the other nine subjects, the prediction probabilities amounted to 0.64 for the BIS and to 0.77 for the RIII threshold (P<0.05, PKDMACRO). All population prediction probability values differed significantly from 0.5 (P<0.01, PKDMACRO). CONCLUSIONS:RIII threshold and BIS are both influenced dose-dependently by remifentanil at those concentrations that suppress reactions to noxious stimuli. The susceptibility of the parameters to remifentanil concentration seems to be of a similar quality. Under different ratios of propofol and remifentanil concentrations, the RIII threshold correlates with non-responsiveness better than the BIS.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
von Dincklage F,Hackbarth M,Mager R,Rehberg B,Baars JHdoi
10.1093/bja/aep357subject
Has Abstractpub_date
2010-02-01 00:00:00pages
201-8issue
2eissn
0007-0912issn
1471-6771pii
S0007-0912(17)34630-5journal_volume
104pub_type
杂志文章abstract::The effects of age on the dose of Org NC 45 were studied in 24 healthy, anaesthetized patients using an on-demand infusion of the drug which produced a stable twitch height of 10% of its initial value. The patients were allocated as follows: group I = age less than 40 yr; group II = 40-60 yr and group III = age greate...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/54.6.653
更新日期:1982-06-01 00:00:00
abstract:BACKGROUND:Priming during anaesthesia has been hard to replicate and the conditions under which it occurs remain poorly understood. We replicated and extended a recent study to determine whether intraoperative priming during propofol and nitrous oxide anaesthesia is a reliable phenomenon, whether it occurs due to aware...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/bja/aeh289
更新日期:2005-01-01 00:00:00
abstract:Background:Identification of statistically reliable outcomes for comparison among anaesthetists is challenging. Time-weighted intraoperative mean arterial pressure <65 mm Hg (AUC 65 ) is associated with increased odds for myocardial damage. We explored retrospectively whether such hypotension before incision was statis...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aex153
更新日期:2017-07-01 00:00:00
abstract::Blood transfusion saves many lives but carries significant risk of injury. Currently, red blood cell (RBC) concentrates can be stored up to 42 days. Concerns have recently been raised about the safety and efficacy of transfusing stored RBCs. Refrigerated storage results in a 'storage lesion' that is reflected by metab...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aet405
更新日期:2013-12-01 00:00:00
abstract::The effect of the i.v. administration of methylene blue dye on haemoglobin oxygen saturation, measured by a pulse oximeter was investigated. The absorption spectra of various concentrations of haemoglobin, oxyhaemoglobin and methylene blue were compared. The amount of 660-nm light absorbed by methylene blue was suffic...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/60.4.439
更新日期:1988-03-01 00:00:00
abstract::We report a case of improved cardiopulmonary exercise (CPX) test outcomes measured 48 h after initial CPX testing and immediately after alterations were made to the settings of a dual chamber, dual sensing pacemaker with exercise detection. The changes allowed successful abdominal surgery to be completed. ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aet587
更新日期:2014-06-01 00:00:00
abstract::Diltiazem inhibited and antagonized the abnormal contractures induced by halothane, caffeine and potassium chloride in isolated skeletal muscle from pigs susceptible to malignant hyperpyrexia (MHS). Contractile responses to caffeine and electrical stimulation also were suppressed by diltiazem in control tissue. Simila...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/62.5.566
更新日期:1989-05-01 00:00:00
abstract:BACKGROUND:The analgesia/nociception index (ANI), a 0-100 non-invasive index calculated from heart rate variability, reflects the analgesia/nociception balance during general anaesthesia. The aim of this study was to evaluate the ANI in the assessment of immediate postoperative pain in adult patients undergoing general...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aet110
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Overt stroke after non-cardiac surgery has a substantial impact on the duration and quality of life. Covert stroke in the non-surgical setting is much more common than overt stroke and is associated with an increased risk of cognitive decline and dementia. Little is known about covert stroke after non-cardia...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,多中心研究
doi:10.1093/bja/aew179
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:The AirWay Scope (AWS) is a fibreoptic device that allows for intubation without alignment of the oral, pharyngeal, and tracheal axes. It may be useful for patients with an unstable cervical-spine (C-spine) or when C-spine movement is undesirable. This study was conducted to fluoroscopically evaluate upper C...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aen207
更新日期:2008-10-01 00:00:00
abstract::Seventy-two adult surgical patients were studied to compare neuromuscular and cardiovascular effects of mivacurium chloride during nitrous oxide-fentanyl-thiopentone (BAL group) or nitrous oxide-halothane (HAL group) anaesthesia. Eighteen patients in the BAL group received an initial bolus of mivacurium, either the ED...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
doi:10.1093/bja/64.2.193
更新日期:1990-02-01 00:00:00
abstract::Intravenous dose-response relationships for dimethyl tubocurarine showed that vagal blockade only became appreciable (50-83%) at doses 8-16 times those sufficient for full neuromuscular paralysis in anaesthetized cats (0.0625 mg/kg) and rhesus monkeys (0.125 mg/kg); heart rate was unchanged. Sympathetic function was u...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/48.9.847
更新日期:1976-09-01 00:00:00
abstract::Interest in the use of psychosocial interventions to help older adults manage pain is growing. In this article, we review this approach. The first section reviews the conceptual background for psychosocial interventions with a special emphasis on the biopsychosocial model of pain. The second section highlights three p...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aet129
更新日期:2013-07-01 00:00:00
abstract::We have examined the role of gamma-aminobutyric acid (GABA) neurones in propofol anaesthesia in mice using the righting reflex. Propofol i.p. increased the percentage of loss of the righting reflex in a dose-dependent manner with an ED50 value of 140 (95% confidence limits 123-160) mg kg-1 (n = 40; eight animals per d...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/83.4.665
更新日期:1999-10-01 00:00:00
abstract::In a prospective double-blind study, single dose lumbar extradural blockade was instituted in 80 healthy male patients undergoing lower abdominal surgery. Patients were assigned randomly to one of four groups. Each group received treatment with 0.5% bupivacaine 20 ml containing adrenaline 1:200 000. To this solution w...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/bja/57.3.275
更新日期:1985-03-01 00:00:00
abstract::Cis AB blood group is a rare variant of the AB blood group resulting from inheritance of both A and B genes on one chromosome. It may lead to misclassification in ABO grouping and clinical misdiagnosis as a result of its divergence from the laws of Landsteiner and Mendel. We encountered a case of cis AB blood group, a...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/83.3.491
更新日期:1999-09-01 00:00:00
abstract::A 55-yr-old man received a left supraclavicular brachial plexus block with 0.42% bupivacaine; he had profound motor and sensory block 26 h after injection; complete recovery occurred at 40 h. ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/63.5.604
更新日期:1989-11-01 00:00:00
abstract::Delirium commonly manifests in the postoperative period as a clinical syndrome resulting from acute brain dysfunction or encephalopathy. Delirium is characterized by acute and often fluctuating changes in attention and cognition. Emergence delirium typically presents and resolves within minutes to hours after terminat...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aew475
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:We investigated the effects of total i.v. anaesthesia (TIVA) and balanced anaesthesia (BAL) with sevoflurane on postoperative lung function in patients undergoing surgery in the prone position. METHODS:Sixty patients, aged 21-60 yr, undergoing elective lumbar disc surgery in the prone position were randomly...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aeq321
更新日期:2011-02-01 00:00:00
abstract::Six patients with airway stenosis were submitted to bronchoscopy under general anaesthesia. Each was ventilated with a gas mixture of 50% oxygen and nitrogen using successively manual jet insufflation (JV) using the Sanders technique at 20 b.p.m., and high frequency jet ventilation (HFJV) at rates of 150, 300 and 500 ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/55.10.969
更新日期:1983-10-01 00:00:00
abstract:BACKGROUND:The effects of thoracic epidural anaesthesia (TEA) on gastric mucosal microvascular haemoglobin oxygenation (microHbO(2)) are unclear. At the splanchnic level, reduction of sympathetic tone may promote vasodilation and increase microHbO(2). However, these splanchnic effects are counteracted by systemic effec...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeh235
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Short-axis ultrasound-guided placement of central venous catheters (CVCs) is widely accepted as safe practice. However, utilizing the long-axis approach could further improve safety, as it allows for better visualization of the needle as it is advanced to the target vessel. However, the long-axis approach ha...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aer329
更新日期:2012-01-01 00:00:00
abstract::The neuromuscular and cardiovascular effects of atracurium were compared during nitrous oxide-isoflurane and nitrous oxide-fentanyl anaesthesia in healthy surgical patients. The dose-response curve was shifted significantly to the left during nitrous oxide-isoflurane anaesthesia (ED50 0.068 mg kg-1) as compared with n...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract::Intracuff pressure (c.p.) was measured continuously in 12 patients during prolonged periods of tracheal intubation. High residual volume--low pressure (floppy) and low residual volume--high pressure (conventional) cuffs were studied. The mean baseline c.p. at minimal occluding pressure was significantly smaller in flo...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/53.1.97
更新日期:1981-01-01 00:00:00
abstract:BACKGROUND:Prediction models to identify parturients who experience protracted pain, prolonged opioid use, and delayed self-assessed functional recovery are currently inadequate. METHODS:For this study, 213 nulliparous women who planned vaginal delivery were enrolled and assessed daily until they completed three outco...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2018.04.033
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:The objective of the present study was to investigate the effects of increasing doses of norepinephrine (NE) with or without arginine-vasopressin (AVP) on intestinal oxygen supply and jejunal mucosal tissue oxygen tension in an acute endotoxic pig model. METHODS:In this prospective, randomized, experimental...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aep239
更新日期:2009-11-01 00:00:00
abstract::Patients undergoing anaesthesia for cataract surgery were anaesthetized and their lungs ventilated by intermittent positive pressure ventilation. In one group, ventilation was facilitated by tracheal intubation and in the other group by laryngeal mask airway (LMA). Reflux of stomach contents into the oesophagus was mo...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/bja/73.4.543
更新日期:1994-10-01 00:00:00
abstract:BACKGROUND:The influence of changes in body position relevant to neuraxial blockade on the location of the spinal cord and related neural structures has not been fully quantified. Our aim was to determine the changes, if any, that occur in the location of the spinal cord tip [equivalent to the tip of the conus medullar...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aen295
更新日期:2008-12-01 00:00:00
abstract::A case of an infant receiving orthotopic heart transplantation with over-sized donor heart was reported. Left lower pulmonary venous obstruction after sternotomy closure was detected by transoesophageal echocardiography (TOE) and the decision to delay sternal closure was made and the clinical outcome was very satisfac...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/88.4.590
更新日期:2002-04-01 00:00:00
abstract::The sedation of 50 children aged 6 months to 9 years who had undergone open heart surgery was studied. During artificial ventilation a midazolam infusion was used in conjunction with the administration of morphine (and tubocurarine). Sedation for patients breathing spontaneously with positive airway pressure was conti...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/58.10.1104
更新日期:1986-10-01 00:00:00