Abstract:
:We gave either midazolam or propofol for induction of anaesthesia to 140 ASA I or II female patients (18-60 yr). ED50 values were obtained by probit analysis for three clinical end-points: loss of response to command; loss of eyelash reflex; failure to respond to application of an anaesthetic face mask delivering 1% isoflurane. Propofol ED50 values (95% confidence intervals) were 1.25 (0.99-1.48) mg kg-1, 1.61 (1.29-1.94) mg kg-1 and 1.51 (1.20-1.82) mg kg-1, respectively. ED50 values for midazolam were 0.26 (0.20-0.37) mg kg-1, 0.29 (0.23-0.47) mg kg-1 and 0.25 (0.20-0.32) mg kg-1, respectively. An additional 92 similar patients received one of nine dose combinations of midazolam and propofol for induction of anaesthesia, propofol being administered 2 min after midazolam. Success of induction was based on the clinical end-point of loss of response to command. Administration of 25% of the ED50 of midazolam followed by 50% of the ED50 of propofol resulted in loss of response to command in 50% of patients, while 50% of the ED50 of midazolam, followed by 25% of the ED50 of propofol had the same effect. A probit regression model specifying a synergistic interaction between midazolam and propofol fitted the data significantly better than a model specifying no interaction.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
McClune S,McKay AC,Wright PM,Patterson CC,Clarke RSdoi
10.1093/bja/69.3.240subject
Has Abstractpub_date
1992-09-01 00:00:00pages
240-5issue
3eissn
0007-0912issn
1471-6771pii
S0007-0912(17)46447-6journal_volume
69pub_type
临床试验,杂志文章,随机对照试验abstract::A series of 443 spinal anaesthetics is described. The procedures included operative vaginal delivery, removal of retained placenta and a miscellaneous group common to most obstetric units. Failure to provide effective relief of pain occurred in 5.2% of patients. There was one potentially serious complication, but with...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/51.6.531
更新日期:1979-06-01 00:00:00
abstract:BACKGROUND:Current guidelines for perioperative management of coronavirus disease 19 (COVID-19) are mainly based on extrapolated evidence or expert opinion. We aimed to systematically investigate how COVID-19 affects perioperative management and clinical outcomes, to develop evidence-based guidelines. METHODS:First, w...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1016/j.bja.2020.08.049
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Recent investigations showed that isoflurane can induce pharmacological preconditioning. The present study aimed to compare the potency of four different halogenated anaesthetics to induce preconditioning. METHODS:Anaesthetized open-chest rabbits underwent 30 min of coronary artery occlusion followed by 3 h...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract::Five-year survival following cardiac transplantation approaches 50% and such patients occasionally present for non-cardiac surgery. The application of a simple general anaesthetic technique is described in a patient undergoing minor surgery, and the problems involved in managing heart transplant recipients are discuss...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/57.6.634
更新日期:1985-06-01 00:00:00
abstract::Human error poses significant risk for hospitalized patients causing an estimated 100,000 to 400,000 deaths in the USA annually. Medication errors contribute, with error occurring in 5.3% of medication administrations during surgery. In this study 70.3% of medication errors were deemed preventable. Given the paucity o...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aew379
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:In regional anaesthesia, there is a risk of direct nerve injury. The purpose of this study was to determine whether the diameter of the applied needle is associated with the magnitude of nerve injury after needle nerve perforation. METHODS:In five anaesthetized pigs, the brachial plexus were exposed bilater...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aep366
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:The ability of the third-generation FloTrac/Vigileo software to track changes in cardiac index (CI) induced by volume expansion and norepinephrine in critically ill patients is unknown. METHODS:In subjects with circulatory failure, we administered volume expansion (20 subjects) and increased (20 subjects) o...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aer491
更新日期:2012-04-01 00:00:00
abstract::Midazolam 0.3 mg kg-1 was given as a single dose to three groups of children undergoing cardiac surgery to determine its pharmacokinetic profile in this situation. The first group, undergoing closed heart surgery, received the midazolam during the operation. The other groups underwent cardiopulmonary bypass (CPB) with...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/61.3.302
更新日期:1988-09-01 00:00:00
abstract:BACKGROUND:The aim of this study was to test if intraoperative administration of N(2)O during propofol-remifentanil anaesthesia prevented the onset of postoperative opioid-induced hyperalgesia (OIH). METHODS:Fifty adult ASA I-II patients undergoing elective open septorhinoplasty under general anaesthesia were studied....
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aer323
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abstract:BACKGROUND:Perioperative warming is recommended for surgery under anaesthesia, however its role during Caesarean delivery remains unclear. This meta-analysis aimed to determine the efficacy of active warming on outcomes after elective Caesarean delivery. METHODS:We searched databases for randomized controlled trials u...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,meta分析,评审
doi:10.1093/bja/aev325
更新日期:2015-10-01 00:00:00
abstract::This study was designed to determine whether dextran, gelatin or hydroxyethyl starch-based colloidal resuscitation fluids (CRF) are inhibitory to T lymphocyte activation and mitogenesis in vitro. Isolated peripheral blood lymphocytes from normal donors were activated with mitogen (PHA) and cultured in up to 50% v:v CR...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/81.2.242
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:We investigated the effects of spinal and general anaesthesia and surgical tourniquet on acute pain and early recovery after total knee arthroplasty (TKA). METHODS:Patients (n=413) were randomised to four parallel groups: spinal anaesthesia with or without tourniquet, and general anaesthesia with or without...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.bja.2020.03.036
更新日期:2020-11-01 00:00:00
abstract::A specific technique for detection of pulmonary aspiration during the perioperative period is lacking. In this study, we developed a scintigraphic method for its diagnosis. Technetium 99m sulphur colloid was given orally 2 h before an i.v. infusion of propofol in patients undergoing elective colonoscopy. During the pr...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
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更新日期:2001-08-01 00:00:00
abstract::Advances in cannabis research have paralleled developments in opioid pharmacology whereby a psychoactive plant extract has elucidated novel endogenous signalling systems with therapeutic significance. Cannabinoids (CBs) are chemical compounds derived from cannabis. The major psychotropic CB delta-9-tetrahydrocannabino...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aen119
更新日期:2008-07-01 00:00:00
abstract:BACKGROUND:Sepsis-induced organ failure is the major cause of death in critical care units, and is characterized by a massive dysregulated inflammatory response and oxidative stress. We investigated the effects of treatment with antioxidants that protect mitochondria (MitoQ, MitoE, or melatonin) in a rat model of lipop...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aes577
更新日期:2013-03-01 00:00:00
abstract::Profound postoperative respiratory depression after larger doses of fentanyl was partially reversed by 4-aminopyridine. This reversal was independent of FIO2' suggesting that the response was not dependent upon peripheral chemoreceptor-mediated drive. Similar reversal of fentanyl-induced depression by 4-aminopyridine ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/53.4.373
更新日期:1981-04-01 00:00:00
abstract::Bilateral superior laryngeal nerve block was combined with topical application of local anaesthetic 140 times in 135 patients to anaesthetize the upper airway and facilitate tracheal intubation, laryngeal instrumentation, or to diminish the response to the endotracheal tube, in a patient already intubated. The techniq...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/53.10.1055
更新日期:1981-10-01 00:00:00
abstract::Nociceptin/orphanin FQ, N/OFQ, and its receptor NOP represent a non-opioid branch of the opioid superfamily that were first studied for their effects on pain responses. Both N/OFQ and NOP are involved in a wide range of 'non-pain' responses including immunomodulation and cardiovascular control. There is now growing in...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aeq337
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Improvement of postoperative pain and other perioperative outcomes remain a significant challenge and a matter of debate among perioperative clinicians. This systematic review aims to evaluate the effects of perioperative i.v. lidocaine infusion on postoperative pain and recovery in patients undergoing vario...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,meta分析,评审
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abstract:BACKGROUND:Endothelial dysfunction might be involved in the development of cerebral vasospasm after aneurysmal subarachnoid haemorrhage (SAH). METHODS:This prospective observational study of 48 SAH subjects and 23 control subjects examined associations between reactive hyperaemia index (RHI) measured by peripheral art...
journal_title:British journal of anaesthesia
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doi:10.1093/bja/aet331
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abstract:BACKGROUND:Growing evidences indicate that inhalational anaesthetics can enhance the growth and malignant potential of tumour cells and may affect tumour recurrence after surgery. Tumour stem cells play a vital role in tumour recurrence. This study investigates the effect of sevoflurane on glioma stem cells (GSCs) in v...
journal_title:British journal of anaesthesia
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journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1989-02-01 00:00:00
abstract:BACKGROUND:Dexmedetomidine has been proposed as a perineural local anaesthetic (LA) adjunct to prolong peripheral nerve block duration; however, results from our previous meta-analysis in the setting of brachial plexus block (BPB) did not support its use. Many additional randomized trials have since been published. We ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,meta分析,评审
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更新日期:2017-02-01 00:00:00
abstract::Neurone specific enolase (NSE) and S-100 beta protein have been used as markers of brain damage. We hypothesized that blood concentrations of NSE and S-100 beta protein reflect cognitive dysfunction after abdominal surgery. We studied 65 elderly patients in whom neuropsychological testing was performed before abdomina...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/oxfordjournals.bja.a013410
更新日期:2000-02-01 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::Before the induction of labour in 34 pregnant women 1.5% lignocaine 10 ml was injected into the lumbar extradural space at constant rates between 0.143 and 0.333 ml s-1. Injection pressures and residual pressures were recorded and the extent of analgesia to pinprick was assessed. No significant correlation was found b...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/52.1.55
更新日期:1980-01-01 00:00:00
abstract::Magnesium inhibits the release of acetylcholine from the motor nerve terminal and thus potentiates the action of the non-depolarizing neuromuscular blocking drugs. We have examined the possibility that this effect might enhance the speed of onset of non-depolarizing block with pancuronium. Following the administration...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1991-02-01 00:00:00
abstract:BACKGROUND:Double-lumen tubes (DLTs) are frequently used to establish one-lung ventilation (OLV). Their correct placement is crucial. We hypothesized that electrical impedance tomography (EIT) reliably displays distribution of ventilation between left and right lung and may thus be used to verify correct DLT placement ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aen166
更新日期:2008-09-01 00:00:00
abstract::In an open study we have investigated the efficacy of 20 ml of 0.75% ropivacaine (7.5 mg ml-1) to provide extradural anaesthesia for elective Caesarean section. Plasma concentrations (total and free) were estimated in the mother and neonate. Anaesthesia was effective and safe. Plasma concentrations of ropivacaine in t...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
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更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:Investigators planning dose-response studies of neuromuscular blockers have rarely used a priori power analysis to determine the minimal sample size their protocols require. Institutional Review Boards and peer-reviewed journals now generally ask for this information. This study outlines a proposed method fo...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeq310
更新日期:2011-02-01 00:00:00