Abstract:
:The kinetics of morphine were studied during balanced anaesthesia in 10 patients undergoing lower abdominal or body surface surgery, and compared with those obtained in nine awake patients receiving morphine i.v. for the relief of chronic non-cancer pain. All patients received morphine sulfphate pentahydrate 10 mg i.v. over 30 s. Venous blood samples were collected for up to 180 min, and plasma concentrations of morphine, morphine-3-glucuronide (M3G), and morphine-6-glucuronide (M6G) assayed by a differential radioimmunoassay technique. There were no differences between groups with respect to the elimination half-life (awake group: 207 min; anaesthetized group: 153 min), volume of distribution at steady state (awake: 147 litre; anaesthetized: 128 litre), or clearance (awake: 587 ml min-1; anaesthetized: 766 ml min-1). Peak concentrations of M3G were similar in the two groups, but the peak concentration of M6G was greater in the anaesthetized patients. The AUC for M3G and M6G (0-180 min) also were greater in the anaesthetized patients, presumably as a result of decreases in renal blood flow and glomerular filtration rate during halothane anaesthesia.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
Sear JW,Hand CW,Moore RA,McQuay HJdoi
10.1093/bja/62.1.22subject
Has Abstractpub_date
1989-01-01 00:00:00pages
22-7issue
1eissn
0007-0912issn
1471-6771pii
S0007-0912(17)47469-1journal_volume
62pub_type
杂志文章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: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
doi:10.1093/bja/aew411
更新日期:2017-02-01 00:00:00
abstract::Summary While complex physiological mechanisms exist to regulate and optimize tissue oxygenation under various conditions, clinical and experimental evidence indicates that anaemia, unchecked, is associated with organ injury and unfavourable outcomes. More data (especially from human studies) are needed to answer ques...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aer350
更新日期:2011-12-01 00:00:00
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
pub_type: 杂志文章
doi:10.1093/bja/aet331
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:Pressures (Pe) exerted by bronchial blockers on the inner wall of the bronchi may cause mucosal ischaemia. Our aims were as follows: (i) to compare the intracuff pressure (Pi) and Pe exerted by commercially available bronchial blockers in an in vitro and an ex vivo model; (ii) to investigate the influence of...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aew120
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:The oesophageal leak pressure is defined as the pressure which breaks the seal between the cuff of a supraglottic airway and the peri-cuff mucosa, allowing penetration of fluid into the pharynx and the oral cavity. As a consequence, a decrease in this variable increases the risk of reflux and can lead to pul...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aev435
更新日期:2016-02-01 00:00:00
abstract:BACKGROUND:Midlatency auditory evoked potentials (MLAEP) are a promising tool for monitoring suppression of sensory processing during anaesthesia and might help to avoid awareness. MLAEP in children are different to those in adults and the exact changes during general anaesthesia are unknown. METHODS:In 49 children of...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aem267
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND:Muscle relaxants facilitate tracheal intubation, but they are often not used for short peripheral surgical procedures. The consequences of this practice on the upper airway are still a matter of controversy. We therefore compared the incidence of post-intubation symptoms in a randomized study comparing patie...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aem147
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:Medication-related adverse events (MRE) in anaesthesia care are frequent and require a deeper understanding if we are to prevent medication harm. METHODS:We searched for reported MRE from the Spanish Anaesthesia Incident Reporting System (SENSAR) database over a 10-yr period. SENSAR is a cross-national, mul...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,多中心研究
doi:10.1016/j.bja.2019.10.013
更新日期:2020-02-01 00:00:00
abstract::We have examined the effects of sedation with midazolam 0.1 mg kg-1 and reversal with flumazenil 0.5 mg on beat-to-beat heart rate (HR) variability (HRV), systolic arterial pressure (SAP), finger photoplethysmograph amplitude (PLA) and impedence pneumography in eight volunteers. With the onset of sedation there was a ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/76.4.503
更新日期:1996-04-01 00:00:00
abstract::Thiopental is a racemate of equimolar R- and S-thiopental enantiomers that have different potencies in laboratory experiments. We measured concentrations of R- and S-thiopental in plasma, tissues and brain microdialysate of rats after computer-controlled infusion of thiopental i.v. to a plasma concentration of 40 micr...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/oxfordjournals.bja.a013385
更新日期:2000-01-01 00:00:00
abstract::Cardiovascular risk prediction using clinical risk factors is integral to both the European and the American algorithms for preoperative cardiac risk assessment and perioperative management for non-cardiac surgery. We have reviewed these risk factors and their ability to guide clinical decision making. We examine thei...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aer194
更新日期:2011-08-01 00:00:00
abstract::The time course of the plasma lignocaine concentration, following caudal anaesthesia, was studied in 11 healthy children (3.5-9 yr). Plasma lignocaine concentrations were measured for up to 6 h after administration (5 mg kg-1). Peak plasma concentration was 2.05 +/- 0.08 micrograms ml-1 and occurred at 28.2 +/- 2.9 mi...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/56.12.1399
更新日期:1984-12-01 00:00:00
abstract::Isolated, cultured rat pancreatic islets of Langerhans were incubated in medium containing glucose 2 or 20 mmol litre-1 and with glucose supplemented with midazolam 10, 100 or 1000 ng ml-1. Glucose 20 mmol litre-1 with the addition of noradrenaline 10 mumol litre-1 was used as a control. In contrast with noradrenaline...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/70.2.221
更新日期:1993-02-01 00:00:00
abstract::The effects of bolus doses of phenoperidine 1-2 mg i.v. either alone, or combined with pancuronium 2-4 mg, were investigated in seven patients in traumatic coma. Phenoperidine alone significantly reduced mean arterial pressure (MAP) by a mean (+/- SEM) of 13.2 (+/- 2.8) mm Hg. Overall there was no significant change i...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/59.5.592
更新日期:1987-05-01 00:00:00
abstract::This editorial looks at some of the various anesthesias used during pregnancy termination. Trichloroethylene, often a popular substitute for halothane, has been subjected to little evaluation. Only clinical study however, can actually establish the significance of myometrial depressant properties in the pregnant pat...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/52.8.711
更新日期:1980-08-01 00:00:00
abstract:BACKGROUND:Whether exposure to a single general anaesthetic (GA) in early childhood causes long-term neurodevelopmental problems remains unclear. METHODS:PubMed/MEDLINE, Embase, CINAHL, Web of Science, and the Cochrane Library were searched from inception to October 2019. Studies evaluating neurodevelopmental outcomes...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1016/j.bja.2020.10.022
更新日期:2021-02-01 00:00:00
abstract::The effect of the administration of propranolol 0.15 mg per kg body weight i.v. on the metabolic response to pelvic surgery was compared with results in similar patients who had not received propranolol. The only significant difference between the two groups was a lower plasma insulin concentration in the beta-blockad...
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/52.12.1231
更新日期:1980-12-01 00:00:00
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::The problems of selection of tracheal tubes, and the need for a rationale, are outlined. Tracheal tubes of 7.5 mm and 8.5 mm i.d. are recommended for female and male patients, respectively. Tracheal size was determined using high pressure-low volume cuffs as measuring devices. The average diameter of the cuff at seal ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/58.1.111
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:Left ventricular (LV) pressure-volume (PV) loops were used to compare the functional effects that accompany the cardioprotection seen with desflurane, sevoflurane, and propofol in a rabbit preparation of coronary ischaemia-reperfusion (IR). METHODS:Male New Zealand White rabbits (n=48) were anaesthetized wi...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aep238
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND:We investigated the extent and frequency of dose errors and treatment delays made as a consequence of preparing drug infusions at the bedside, rather than using pre-filled syringes. METHODS:Forty-eight nurses with critical care experience volunteered to take part in this randomized, blinded, controlled stud...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aes257
更新日期:2012-11-01 00:00:00
abstract::The majority of patients with acute respiratory distress syndrome (ARDS) require mechanical ventilation. This support provides time for the lungs to heal, but the adverse effects of mechanical ventilation significantly influence patient outcome. Traditionally, these were ascribed to mechanical effects, such as haemody...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/aeh031
更新日期:2004-02-01 00:00:00
abstract:BACKGROUND:Emotional information has the ability to alter the formation and strength of a memory ('memory modulation'). Memory modulation by negative emotion is mediated by the amygdala. It is not known how gamma aminobutyric acid (GABA)ergic drugs affect the processes involved in memory modulation. This study investig...
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/aeh211
更新日期:2004-09-01 00:00:00
abstract::Using human nasal cytological brushings, we have investigated the effects of morphine on ciliary function by measurement of cilia beat frequency in vitro, and we have also determined opioid receptor binding in these specimens. We obtained ciliated samples from seven volunteers, and measured cilia beat frequency using ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/76.2.274
更新日期:1996-02-01 00:00:00
abstract::It is generally accepted that halothane reduces airway and tissue resistance in lungs with preexisting airway tone. However, under conditions of resting airway tone, pulmonary resistance remains unaltered. In this study, we have determined the effects of halothane on respiratory system, pulmonary and chest wall resist...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/oxfordjournals.bja.a013443
更新日期:2000-03-01 00:00:00
abstract::Standard methods for accurate intraoperative measurement of neuromuscular block are either expensive or inconvenient and are not used widely. We have evaluated a new method of monitoring neuromuscular block using a low-frequency microphone. The method is based on the phenomenon of low-frequency sound emission by contr...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
doi:10.1093/bja/83.3.405
更新日期:1999-09-01 00:00:00
abstract::The pharmacokinetics of edrophonium were determined in patients anaesthetized with nitrous oxide and halothane undergoing kidney transplant nephrectomy (n=6) or transplantation of a live related donor kidney (n = 6). Serum concentrations of edrophonium were assayed by high pressure liquid chromatography and pharmacoki...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/53.12.1311
更新日期:1981-12-01 00:00:00
abstract:BACKGROUND:Better education of clinicians is expected to enhance patient safety. An important component of education is adherence to standard protocols, which are mainly available in written form. Believing in the potential power of videos, we hypothesized that the introduction of an educational video, based on an inst...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aew030
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:Assessments of labour pain focus on pain intensity, not on duration. We aimed to assess the importance labouring women apply to pain intensity and duration before labour and post-delivery. METHODS:Forty healthy women scheduled for labour induction were enrolled in this institutional review board-approved, p...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeu149
更新日期:2014-09-01 00:00:00