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 been studied in healthy volunteers and in patients undergoing different types of surgery, but no data are available in intensive care patients. METHODS:We determined the pharmacokinetics of ketamine and its active metabolites, norketamine and dehydronorketamine, in 12 intensive care patients with brain or spinal cord injury. The effect of ketamine on haemodynamic variables was also investigated. RESULTS:The total clearance of ketamine, mean (SD), was 36.0 (13.3) ml min(-1) kg(-1), the volume of distribution (Vbeta) was 16.0 (8.6) litre kg(-1), and the elimination half-life was 4.9 (1.6) h. Ketamine did not alter any haemodynamic variables in the patients studied. CONCLUSIONS:Pharmacokinetic variables of ketamine in intensive care patients are greater than in healthy volunteers and in surgical patients. The increase in the volume of distribution is greater than the increase in clearance, resulting in a longer estimated half-life of ketamine in this patient group.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
Hijazi Y,Bodonian C,Bolon M,Salord F,Boulieu Rdoi
10.1093/bja/aeg028subject
Has Abstractpub_date
2003-02-01 00:00:00pages
155-60issue
2eissn
0007-0912issn
1471-6771pii
S0007-0912(17)36886-1journal_volume
90pub_type
杂志文章abstract::Two patients are described in whom failure of the Pollard endotracheal tube produced complete respiratory obstruction. Comparisons are made of external diameters, resistance to gas flow and resistance to compression between Pollard tubes and several conventional tubes. It is concluded that the Pollard tube is not sati...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/49.2.179
更新日期:1977-02-01 00:00:00
abstract:BACKGROUND:Fast onset and short duration are prominent properties of the amide-type local anaesthetic articaine. Similar to bupivacaine, a hyperbaric solution of articaine may produce faster onset and shorter duration of spinal anaesthesia than a plain solution. METHODS:Patients undergoing open inguinal hernia repair ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aen294
更新日期:2008-12-01 00:00:00
abstract::In 105 patients undergoing day-case surgery recovery of consciousness was significantly faster after enfluane compared with halothane anaesthesia. There was no difference in postoperative morbidity between the two anaesthetic groups. ...
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/51.12.1143
更新日期:1979-12-01 00:00:00
abstract:BACKGROUND:Cerebral state index (CSI) has recently been introduced as an intra-operative monitor of anaesthetic depth. We compared the performance of the CSI to the bispectral index (BIS) in measuring depth of anaesthesia during target-controlled infusion (TCI) of propofol. METHODS:Twenty Chinese patients undergoing g...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aei253
更新日期:2005-12-01 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::Volatile anaesthetics have been shown to have direct relaxant effects on airway smooth muscle. We have examined the effects of 0.9, 1.9, and 2.8 dog MAC of desflurane and halothane on isolated proximal and distal canine airways precontracted with acetylcholine. The proximal and distal airway smooth muscle relaxed with...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/76.6.841
更新日期:1996-06-01 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
doi:10.1093/bja/51.6.497
更新日期:1979-06-01 00:00:00
abstract::Hypertensive patients were monitored for myocardial ischaemia during anaesthesia and surgery with the V5 lead of a standard electrocardiograph. Myocardial ischaemia was detected in 11 of 39 untreated hypertensive patients and in four of seven receiving therapy with a diuretic, but in none of 44 receiving atenolol. Fou...
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/61.6.675
更新日期:1988-12-01 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::The effect of incubation at 37 degrees C, 46 degrees C, 47 degrees C and 48 degrees C for 1 h on the osmotic fragility of blood was determined. Blood taken from volunteers into ACD and CPD was examined after 1, 7, 14 and 21 days of storage. In addition, 22-day-old blood stored in CPD was examined. The osmotic fragilit...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/50.8.815
更新日期:1978-08-01 00:00:00
abstract::The anaesthetic risks of acromegaly include difficulties in airway management, hypertension, and cardiac, gastrointestinal and renal problems. To estimate the incidence of major complications in this rare group of patients, we reviewed 28 patients with acromegaly who had pituitary tumour excision over a 10-yr period. ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/oxfordjournals.bja.a013400
更新日期:2000-02-01 00:00:00
abstract::We have studied patterns of oxygen saturation (SpO2) before and after thoracotomy in 20 patients monitored nightly from the preoperative night to the fourth postoperative night. After operation, 10 patients received paravertebral bupivacaine (PVB) infusion and 10 received paravertebral saline (PVS) infusion. Papaveret...
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/67.6.704
更新日期:1991-12-01 00:00:00
abstract:BACKGROUND:The solubility of desflurane compared with sevoflurane suggests more rapid recovery from desflurane anaesthesia. This could be important after prolonged anaesthesia and fast recovery may be advantageous in the elderly where slow recovery of mental function is a concern. We compared emergence from desflurane ...
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/aeg221
更新日期:2003-10-01 00:00:00
abstract:BACKGROUND:Neurological deficit after repair of a thoracic or thoracoabdominal aortic aneurysm (TAA/TAAA) remains a devastating complication. The aim of our study was to investigate the clinical value of biochemical markers [S-100B, neurone-specific enolase (NSE) and lactate dehydrogenase (LD)], evoked potentials and t...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aei239
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:Arousal after sevoflurane anaesthesia has been detectable by monitoring changes in skin conductance (SC) with similar accuracy as monitoring Bispectral Index (BIS). As SC monitoring detects changes in sympathetic tone, the measurements might be confounded by the sympatholytic properties of propofol, a compon...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/ael278
更新日期:2006-12-01 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:BACKGROUND:We previously demonstrated that i.v. emulsified isoflurane induces general anaesthesia in animals. In this study, we compared the pharmacokinetics of emulsified isoflurane given as i.v. bolus and as infusion in beagle dogs. METHODS:Sixteen beagle dogs were assigned randomly to a bolus group comprising three...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aes311
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Vasopressor agents are used to prevent intraoperative hypotension and ensure adequate perfusion. Vasopressors are usually administered as intermittent boluses or manually adjusted infusions, but this practice requires considerable time and attention. We have developed a closed-loop vasopressor (CLV) controll...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2019.04.064
更新日期:2019-10-01 00:00:00
abstract::We determined in 51 healthy patients undergoing body surface surgery the dose requirements for propofol, as part of a total i.v. anaesthesia technique with an alfentanil infusion. After premedication with temazepam, patients received alfentanil 50 micrograms kg-1 followed by an infusion of 50 micrograms kg-1 h-1. Pati...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
doi:10.1093/bja/65.2.157
更新日期:1990-08-01 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
doi:10.1093/bja/79.1.3
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:Opioid prescribing is increasing worldwide with associated increases in misuse and other harms. We studied variations in national opioid prescription rates, indicators of prescribing quality, co-prescribing of benzodiazepines and relationship with pain severity in Scotland. METHODS:Electronic linkages of op...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2018.02.022
更新日期:2018-06-01 00:00:00
abstract::We present a new pattern of nerve stimulation--double burst stimulation (DBS)--to detect residual neuromuscular block manually. The DBS consists of two short lasting, 50-Hz tetanic stimuli or bursts separated by a 750-ms interval. The response to this pattern of stimulation is two single separated muscle contractions ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/62.3.274
更新日期:1989-03-01 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::We have compared, in a randomized study in 26 patients, immediate and late postoperative recovery after elective laparoscopic cholecystectomy using the gasless, mechanical abdominal wall lift method with conventional carbon dioxide pneumoperitoneum. After the gasless method, tracheal extubation was performed significa...
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/77.5.576
更新日期:1996-11-01 00:00:00
abstract::The accuracy of five new oxygen and nitrous oxide flowmeter units was investigated using the bubble meter method. The results were compared with those previously found in flowmeters withdrawn from clinical use. New oxygen flowmeters demonstrated less inaccuracies than old flowmeters. No differences were found between ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/52.1.97
更新日期:1980-01-01 00:00:00
abstract::The effect of diluting propofol in 5% dextrose on the incidence of i.v. injection pain was studied in 100 adult patients. Severe injection pain occurred in 32% (16 patients) who received undiluted propofol, compared with 10% (five patients) who received dilute propofol. We concluded that the dilution of propofol signi...
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/62.2.202
更新日期:1989-02-01 00:00:00
abstract:BACKGROUND:Single-lung ventilation in infants and small children is challenging because suitable sizes of double-lumen cuffed tracheal tubes are not available. A 6-yr-old child required pulmonary saline washout for primary alveolar proteinosis, and therefore needed sequential single-lung ventilation in order to achieve...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aev305
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Fluid administration to increase stroke volume index (SVi) is a cornerstone of haemodynamic resuscitation. We assessed the accuracy of SVi variation during a calibrated abdominal compression manoeuvre (ΔSVi-CAC) to predict fluid responsiveness in children. METHODS:Patients younger than 8 yr with acute circu...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2018.06.030
更新日期:2018-12-01 00:00:00
abstract::An investigation was carried out into the relationship between the inflation pressures of normally compliant lungs and the airways pressure necessary to produce the insufflation of gas to the stomach. This relationship was examined during manual ventilation with a mask, using a rapid sequence induction technique. In t...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/59.3.315
更新日期:1987-03-01 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