Abstract:
BACKGROUND:Recent research into memory formation under sedation has generated conflicting results. We investigated explicit and implicit memory in ICU patients during moderate to deep propofol sedation following cardiac surgery. METHODS:Two different methods of memory testing were used; (1). free-association (F-A) word-pair testing (n=33) to test conceptual implicit memory and (2). process dissociation procedure (PDP) (n=26) to detect perceptual implicit and explicit memory. One hour after surgery, whilst sedated, the F-A group received one of two lists of 10 category-exemplar word-pairs through headphones, while the PDP group was presented with one of two lists of 16 five-letter words. When awake and co-operative, the F-A group was tested using F-A testing, and the PDP group was tested using the PDP. RESULTS:The F-A group had a mean (SD) correct response rate of 7 (9)% for the target list, and 9 (8)% for the distractor list. The PDP group had a mean (SD) correct response rate of 11 (14) and 10 (13)% for the inclusion and exclusion lists, respectively, with mean correct response rates of 13 (14)% for both the corresponding distractor lists. Neither group showed any significant differences between their responses and a list of distractor words (Wilcoxon tests). CONCLUSION:We found no evidence for memory formation in post-cardiac surgery patients under moderate to deep propofol sedation.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
Clark J,Voss L,Barnard J,Sleigh Jdoi
10.1093/bja/aeg274subject
Has Abstractpub_date
2003-12-01 00:00:00pages
810-4issue
6eissn
0007-0912issn
1471-6771pii
S0007-0912(17)36263-3journal_volume
91pub_type
杂志文章abstract::A mathematical model of a subject breathing from a circle system has been used to follow the course of anaesthetic uptake during the simulated administration of 60% nitrous oxide, 2% halothane and 2% methoxyflurane, under non-rebreathing conditions and with fresh gas flows to the circle system of between 8 and 0.25 li...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/58.10.1167
更新日期:1986-10-01 00:00:00
abstract:BACKGROUND:This study focuses on a recently developed robotic nerve block system and its impact on learning regional anaesthesia skills. We compared success rates, learning curves, performance times, and inter-subject performance variability of robot-assisted vs manual ultrasound (US)-guided nerve block needle guidance...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aet440
更新日期:2014-06-01 00:00:00
abstract::We have examined changes in plasma concentrations of calcium in seven anaesthetized pigs during i.v. infusion of irrigating fluid containing 1.5% glycine. Volumes infused were 875 ml at 20 min (22 ml kg-1), 1475 ml at 40 min and 2075 ml at 60 min (75 ml kg-1). Plasma concentrations of sodium decreased from 134.5 (SD 3...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/77.2.271
更新日期:1996-08-01 00:00:00
abstract::A possible means of rapid cooling in the emergency treatment of malignant hyperpyrexia, peritoneal dialysis using a cold dialysate, is described. Experimental observations in a young man on a regular peritoneal dialysis regime showed that significant heat extraction can be obtained when either a cool (20 degrees C) or...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/48.5.469
更新日期:1976-05-01 00:00:00
abstract::The effect of pretreatment with suxamethonium, gallamine or pancuronium on suxamethonium-induced fasciculations and myalgia was studied in a controlled, randomized and double-blind clinical trial. Both fasciculations and myalgia were assessed on a four-point rating scale. There was no significant correlation between f...
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/60.4.367
更新日期:1988-03-01 00:00:00
abstract::Placental transfer of 14C-dimethyltubocurarine (14C-dmtc) was studied during Caesarean section. Liquid scintillation counting was used for determination of 14C activity from the maternal and foetal blood samples. Paper chromatography was used to confirm the stability of 14C-dmtc. In all cases 14C-dmtc was able to cros...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/48.3.239
更新日期:1976-03-01 00:00:00
abstract:BACKGROUND:The Laryngeal Tube (LT) performs similarly to the classic laryngeal mask airway during controlled ventilation but with an improved airway seal. We compared the laryngeal tube with the ProSeal laryngeal mask airway (PLMA) throughout anaesthesia. METHODS:Thirty-two patients were studied using a randomized cro...
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/aeg239
更新日期:2003-11-01 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
doi:10.1093/bja/66.2.247
更新日期:1991-02-01 00:00:00
abstract:BACKGROUND:The ProSeal laryngeal mask airway (PLMA) is a new laryngeal mask device with a modified cuff and a drainage tube. METHODS:We assessed the PLMA in 300 anaesthetized adults either paralysed or breathing spontaneously. We assessed insertion characteristics, airway seal pressures, haemodynamic response to inser...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/88.4.534
更新日期:2002-04-01 00:00:00
abstract::We carried out a randomized prospective study in 60 patients who had undergone major abdominal surgery for cancer. For postoperative pain control, 30 patients received continuous extradural infusion of 0.125% bupivacaine 12.5 mg h-1 and morphine 0.25 mg h-1 (EXI group) and 30 received patient-controlled analgesia (PCA...
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/80.6.742
更新日期:1998-06-01 00:00:00
abstract:BACKGROUND:In this randomized, double-blind study, the effects of thoracic and lumbar epidural anaesthesia on the induction doses (IDs) and maintenance doses (MDs) of propofol during bispectral index (BIS) guided total i.v. anaesthesia were compared. METHODS:Fifty-four patients (three groups, n=18 each) undergoing uro...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aen160
更新日期:2008-08-01 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
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Clinicians frequently warn patients of discomfort before potentially painful procedures, despite the lack of evidence that such communications are helpful. We aimed to compare two communications (one with, and the other without, a warning of a 'sting') immediately before i.v. cannulation in order to measure ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aem308
更新日期:2007-12-01 00:00:00
abstract::We have tested the hypothesis that intradermal testing is a more effective method for determining the drug responsible for anaesthetic anaphylactic reactions than prick testing in 212 consecutive patients, aged more than 10 yr, referred to an anaesthetic allergy clinic over a 4-yr period. The study was a prospective, ...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
doi:10.1093/bja/79.1.59
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:Clonidine is an alpha 2 adrenergic agonist with analgesic properties. This study aimed to see if the addition of clonidine to morphine when given by patient-controlled analgesia (PCA) would improve analgesia beyond the first 12 h after surgery. METHODS:Sixty patients undergoing lower abdominal surgery were ...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2002-09-01 00:00:00
abstract::The ventilatory effects of single i.v. doses of morphine 0.1 mg kg-1, pethidine 0.67 mg kg-1 and methadone 0.1 mg kg-1 were compared after ophthalmic surgery in an open, randomized study in 30 children aged 3-8 yr. Ventilatory changes after each drug had distinctive profiles, with appreciable individual variation. Acu...
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/70.4.414
更新日期:1993-04-01 00:00:00
abstract::A new type of intra-arterial oxygen electrode was evaluated. In 14 patients, undergoing one-lung ventilation for thoracic surgery, the electrode was inserted into the radial artery and changes in PaO2 were recorded continuously. Methods of improving PaO2 during one-lung ventilation were demonstrated. ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/48.10.1005
更新日期:1976-10-01 00:00:00
abstract:BACKGROUND:Ketamine is widely used as an i.v. anaesthetic agent and as a drug of abuse. Hepatocytes contribute to the metabolism of endogenous and exogenous substances. This study evaluated the toxic effects of S-(+)-ketamine and possible mechanisms using human hepatoma HepG2 cells as the experimental model. METHODS:H...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aen322
更新日期:2009-01-01 00:00:00
abstract::The respiratory effects of a new strong analgesic, meptazinol, were compared with a placebo and with equianalgesic doses of morphine and pentazocine in a double-blind crossover trial in seven healthy volunteers. No significant change in the ventilatory response to rebreathing carbon dioxide was observed after meptazin...
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:1979-06-01 00:00:00
abstract:BACKGROUND:Platelet inhibition is mandatory therapy after percutaneous coronary intervention (PCI). Withdrawal of oral antiplatelet agents has been linked to increased incidence of postoperative adverse cardiac events in post-PCI patients having non-cardiac surgery (NCS). There is limited knowledge of temporal changes ...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1093/bja/aev556
更新日期:2016-04-01 00:00:00
abstract::We have assessed tracheal intubating conditions in 60 ASA I or II patients after induction of anaesthesia with propofol 2.5 mg kg-1 and alfentanil 10 or 20 micrograms kg-1 with or without i.v. lignocaine 1 mg kg-1. No neuromuscular blocking agents were administered. Patients were allocated randomly to four groups: gro...
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/70.2.163
更新日期:1993-02-01 00:00:00
abstract::Sickle cell disease is a congenital haemoglobinopathy with a high incidence of perioperative complications. Traditional anaesthetic management, based largely on extrapolation from biochemical models, has emphasized avoidance of red cell sickling to prevent exacerbations of the disease. This historical review outlines ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aei129
更新日期:2005-09-01 00:00:00
abstract::We have studied 16 healthy volunteers whose lungs were preoxygenated six times each in order to assess the amount of room air entrained during tidal volume preoxygenation if a good seal is not maintained between the face mask and the face. With a fresh gas flow of 10 litre min-1, we found that using gravity alone to h...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
doi:10.1093/bja/75.6.777
更新日期:1995-12-01 00:00:00
abstract::Intraoperative awareness, with or without recall, continues to be a topic of clinical significance and neurobiological interest. In this article, we review evidence pertaining to the incidence, sequelae, and prevention of intraoperative awareness. We also assess which aspects of the complication are well understood (i...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aev034
更新日期:2015-07-01 00:00:00
abstract::Patients with metastatic carcinoid tumours often undergo surgical procedures to reduce the tumour burden and associated debilitating symptoms. These procedures and anaesthesia can precipitate a life-threatening carcinoid crisis. To assess perioperative outcomes, we studied retrospectively the medical records of adult ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/87.3.447
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Transtracheal jet ventilation (TTJV) is recommended in several airway guidelines as a potentially life-saving procedure during the 'Can't Intubate Can't Oxygenate' (CICO) emergency. Some studies have questioned its effectiveness. METHODS:Our goal was to determine the complication rates of TTJV in the CICO e...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aew192
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Ketamine is used as an anaesthetic agent for short surgical procedures, and as a sedative and analgesic in intensive care patients. Intensive care patients with brain or spinal cord injury may have physiological changes that could alter the pharmacokinetics of ketamine. The pharmacokinetics of ketamine have ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeg028
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND:Cut-off points (CPs) of the numeric rating scale (NRS 0-10) are regularly used in postoperative pain treatment. However, there is insufficient evidence to identify the optimal CP between mild and moderate pain. METHODS:A total of 435 patients undergoing general, trauma, or oral and maxillofacial surgery wer...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aer195
更新日期:2011-10-01 00:00:00
abstract::We studied a cat model simulating laudanosine accumulation in the "anephric" patient. Cardiovascular effects were seen only with the bolus doses of laudanosine 2 mg kg-1, and at plasma laudanosine concentrations unlikely to be achieved clinically. Similarly, EEG and power spectra analysis showed no evidence of epilept...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/58.suppl_1.14s
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:Aortocaval compression (ACC) can result in haemodynamic disturbances and uteroplacental hypoperfusion in parturients. Its detection is difficult because in most patients, sympathetic compensation results in no signs or symptoms. However, profound hypotension may develop after sympathectomy during regional an...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aes349
更新日期:2012-12-01 00:00:00