Abstract:
:We have measured the onset and extent of the miotic effect of morphine and alfentanil in conscious patients. Forty unpremedicated ASA I and II patients were allocated randomly to four groups to receive either i.v. saline (control group), morphine 0.1 mg kg-1, alfentanil 4.0 micrograms kg-1 or a combination of these doses, and pupil diameters were measured for the next 30 min. There were no significant differences in the control diameters. In the opioid groups, a significant decrease in diameter (about 1 mm), occurred 4 min after administration of the drug and persisted throughout the study. The opioid groups behaved similarly for 25 min. After 10 min the mean diameter of the alfentanil group began to increase, but this did not reach statistical significance until after 25 min.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
Miller CD,Asbury AJ,Brown JHdoi
10.1093/bja/65.3.415subject
Has Abstractpub_date
1990-09-01 00:00:00pages
415-7issue
3eissn
0007-0912issn
1471-6771pii
S0007-0912(17)48402-9journal_volume
65pub_type
临床试验,杂志文章,随机对照试验abstract::We studied 20 patients undergoing thoracotomy, in a double-blind, placebo-controlled crossover trial of intercostal bupivacaine. Bupivacaine 0.25% was infused at 5 ml h-1 through each of two catheters placed in the intercostal space at operation. Mean (95% confidence limits) 24-h requirements for morphine from a patie...
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/70.5.508
更新日期:1993-05-01 00:00:00
abstract:BACKGROUND:The safety of performing spinal anaesthesia for both patients and anaesthetists alike in the presence of active infection with the novel coronavirus disease 2019 (COVID-19) is unclear. Here, we report the clinical characteristics and outcomes for both patients with COVID-19 and the anaesthetists who provided...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2020.03.007
更新日期:2020-06-01 00:00:00
abstract::Following antagonism of tubocurarine block with a mixture of atropine 20 microgram/kg and neostigmine 50 microgram/kg in 20 children, heart rate decreased from a control value of 110.4 beat/min to 90.1 at 5 min and 89.2 at 6 min (P less than 0.02). Stroke volume index did not change during the first 5 min from a contr...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/49.9.901
更新日期:1977-09-01 00:00:00
abstract:BACKGROUND:The aim of this study was to explore difficulties at work from anaesthetists' own perspective and to examine how anaesthetists handle and cope with situations that are perceived as difficult and potentially stressful. METHODS:Two sets of interviews were conducted with 19 specialist anaesthetists in Sweden. ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,多中心研究
doi:10.1093/bja/aem233
更新日期:2007-10-01 00:00:00
abstract::We have studied the haemodynamic and myocardial effects of propofol-fentanyl anaesthesia in 12 patients undergoing coronary artery bypass surgery during the pre-bypass period. The induction dose of propofol was 1.5 mg kg-1 and mean infusion rate during maintenance was 4.48 mg kg-1 h-1 (range 1.87-7.24 mg kg-1 h-1). Th...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/66.4.504
更新日期:1991-04-01 00:00:00
abstract:BACKGROUND:Early tracheostomy may decrease the duration of mechanical ventilation, sedation exposure, and intensive care stay, possibly resulting in improved clinical outcomes, but the evidence is conflicting. METHODS:Systematic review and meta-analysis of randomized trials in patients allocated to tracheostomy within...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,meta分析,评审
doi:10.1093/bja/aeu440
更新日期:2015-03-01 00:00:00
abstract::We studied psychomotor performance in 10 healthy volunteers during recovery after a target-controlled infusion of propofol. Choice reaction time, dual task tracking with secondary reaction time and a within-list recognition task were assessed at target blood propofol concentrations of 0.8, 0.4 and 0.2 microgram ml-1. ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/85.3.396
更新日期:2000-09-01 00:00:00
abstract::A computer-controlled infusion of propofol designed to achieve a target blood concentration of propofol 3 microgram ml-1 was used to investigate the possibility of an interaction between propofol and fentanyl in 32 patients undergoing body surface surgery. In 16 patients who were not receiving a neuromuscular blocker ...
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/64.2.142
更新日期:1990-02-01 00:00:00
abstract::Seven patients are described in whom a prophylactic blood patch was instituted within 15 min of accidental dural puncture. Five of the patients received extradural anaesthesia before the blood patch, and one after the blood patch had been performed. In three of these patients further "top-up" doses of local anaestheti...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/57.5.538
更新日期:1985-05-01 00:00:00
abstract::A new prototype of the laryngeal mask airway (LMA), the intubating laryngeal mask airway (ILMA), was used to facilitate tracheal intubation in 100 fasted patients presenting for elective surgery. Alignment of the ILMA with the larynx was assessed fibreoptically before intubation without the investigator performing the...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
doi:10.1093/bja/79.6.710
更新日期:1997-12-01 00:00:00
abstract::We tested the hypothesis that pressures exerted on the pharyngeal mucosa by the laryngeal mask airway (LMA) and cuffed oropharyngeal airway (COPA) differ, in 20 male and 20 female adult patients. Microchip pressure sensors were attached to the LMA and COPA at four similar anatomical locations (base of the tongue, late...
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/82.6.922
更新日期:1999-06-01 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::This is the report of a 55-yr-old female who developed severe myotonia and dystonia after general anaesthesia. Before starting on gabapentin therapy for a neuropathic pain condition, she had undergone numerous uneventful general anaesthetics. Since receiving treatment with gabapentin, she has experienced severe moveme...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aem130
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:The aim of this study is to test the hypothesis that a standard 30-min break in a routine 7.5 h period of work makes a difference in cognitive function. METHODS:In a double-blinded, cross-over trial 30 residents in anaesthesia were randomized to receive or not to receive a 30-min break between the assessmen...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/ael151
更新日期:2006-09-01 00:00:00
abstract::Systolic pressure variation (SPV) and its dDown component have been shown to be sensitive factors in estimating intravascular volume in patients undergoing mechanical ventilation. In this study, ventilation-induced changes in pulse oximeter plethysmographic waveform were evaluated after removal and after reinfusion of...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/82.2.178
更新日期:1999-02-01 00:00:00
abstract::Alveolar type II (ATII) cells perform many important functions within the lung, including surfactant metabolism. We have investigated the effects of isoflurane and different i.v. anaesthetics on cell metabolism in primary cultures of rat ATII cells. Biosynthesis of phosphatidylcholine, the main phospholipid component ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/82.5.767
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND:Paravertebral regional anaesthesia is used to treat pain after several surgical procedures. This study aimed to improve on our first published ultrasound-guided approach to the paravertebral space (PVS) and to investigate a possible discrepancy between the needle, catheter, and contrast dye position. METHOD...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeq309
更新日期:2011-02-01 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::This was a prospective, non-randomized, multicentre study of rocuronium (Org 9426) in 40 elective Caesarean section patients at full term without fetal distress. Anaesthesia was induced with thiopentone 4-6 mg kg-1 i.v. and rocuronium 0.6 mg kg-1 and maintained with isoflurane and nitrous oxide in oxygen. Monitors inc...
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/73.3.336
更新日期:1994-09-01 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::Intravenous doses of 0.3 mg/kg dimethyl tubocurarine were required for consistent and adequate surgical relaxation in patients during nitrous oxide anaesthesia and produced virtually complete neuromuscular paralysis (96-100%) of the tetanic and twitch responses of the adductor pollicis muscle. The duration of action o...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
doi:10.1093/bja/48.10.969
更新日期:1976-10-01 00:00:00
abstract:BACKGROUND:Anaesthetic preconditioning (A_PreC) and postconditioning (A_PostC) both provide protection against ischaemia-reperfusion in the heart. However, post-ischaemic gene responses may differ between the two therapeutic strategies. METHODS:Isolated perfused rat hearts were exposed to 40 min test ischaemia followe...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aei155
更新日期:2005-08-01 00:00:00
abstract:BACKGROUND:Transitions into and out of the anaesthetised state exhibit resistance to state transitions known as neural inertia. As a consequence, emergence from anaesthesia occurs at a consistently lower anaesthetic concentration than induction. Motivated by stochastic switching between discrete activity patterns obser...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2018.02.035
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND:Paradoxical excitement response during sedation consists of loss of affective control and abnormal movements. Chronic alcohol abuse has been proposed as a predisposing factor despite lack of supporting evidence. Because alcohol and propofol have a common site of action, we postulated that paradoxical excitem...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aer275
更新日期:2011-12-01 00:00:00
abstract::Robotic surgery pushes the frontiers of innovation in healthcare technology towards improved clinical outcomes. We discuss the evolution to five generations of robotic surgical platforms including stereotactic, endoscopic, bioinspired, microbots on the millimetre scale, and the future development of autonomous systems...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aex383
更新日期:2017-12-01 00:00:00
abstract::In order to evaluate simple means of determining the rate of recovery after general anaesthesia, the usefulness of the critical flicker fusion threshold test, the Maddox wing apparatus and the visual analogue scale were compared. The postanaesthetic recovery score was used as a reference. Two patient groups (n = 15 in...
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/59.8.978
更新日期:1987-08-01 00:00:00
abstract::We have investigated the effect of four doses of remifentanil on the incidence of respiratory depression and somatic response at incision. Remifentanil was administered as a loading dose of 0.125, 0.25, 0.375 or 0.5 microgram kg-1 and at a maintenance infusion rate of 0.025, 0.05, 0.075 or 0.1 microgram kg-1 min-1, re...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1093/bja/80.4.509
更新日期:1998-04-01 00:00:00
abstract::We have compared the efficacy of patient-controlled interscalene analgesia (PCIA) using ropivacaine with patient-controlled analgesia (PCA) using nicomorphine in 60 patients (n = 30 in each group), in a prospective, randomized study. In both groups, all patients received interscalene block with 0.75% ropivacaine befor...
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/81.4.603
更新日期:1998-10-01 00:00:00
abstract::We describe a six-compartment physiological model of the kinetics and dynamics of induction of anaesthesia with propofol in sheep. It includes a faithful description of initial bolus kinetics caused by accurate representations of the inter-relationships between initial vascular mixing, lung kinetics and cardiac output...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/79.4.497
更新日期:1997-10-01 00:00:00
abstract:BACKGROUND:Increasing numbers of older patients prescribed clopidogrel are presenting for urgent hip fracture surgery. Best practice for the management of clopidogrel therapy is unknown, although delays to surgery are associated with increased mortality. We investigated the influence of perioperative management of clop...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aer288
更新日期:2011-12-01 00:00:00