Abstract:
:This study was designed to investigate if propofol produced cardiovascular effects by direct actions or by indirect actions secondary to depression of the central nervous system. Experiments were performed on chloralose anaesthetized dogs in which all neurogenic cardiovascular reflexes were abolished by bilateral vagotomy and common carotid ligatures, in combination with i.v. bretylium and propranolol. Bolus doses of propofol followed by infusions at rates up to 160 mg kg-1 h-1 produced blood concentrations of propofol from 1.99 to 112 micrograms ml-1. Infusions of hydroxyethyl starch given to maintain central venous pressures and pulmonary artery occlusion pressures at control values were used as an index of changes in capacitance. Blood concentrations of propofol less than 10 micrograms ml-1 caused an increase in mean capacitance of 8.0 (SEM 1) ml kg-1 with no significant changes in systemic vascular resistance, pulmonary vascular resistance or inotropic state of the heart. We conclude that anaesthesia with propofol may be accompanied by decreased cardiac output secondary to reduction in preload by a direct venodilator effect. Our experiments indicate that cardiac output and arterial pressure are preserved well at normal anaesthetic blood concentrations of propofol if the preload is maintained.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
Goodchild CS,Serrao JMdoi
10.1093/bja/63.1.87subject
Has Abstractpub_date
1989-07-01 00:00:00pages
87-92issue
1eissn
0007-0912issn
1471-6771pii
S0007-0912(17)47130-3journal_volume
63pub_type
杂志文章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:There are regional differences in the effects of anaesthetics agents and perioperative stimuli on the EEG. We studied the topography of the EEG during induction of anaesthesia and intubation in patients receiving thiopental and fentanyl to document regional electrical brain activity. METHODS:EEG was recorde...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeh020
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:With the increasing prevalence of children who are overweight and with obesity, anaesthesiologists must determine the optimal dosing of medications given the altered pharmacokinetics and pharmacodynamics in this population. We therefore determined the single dose of dexmedetomidine that provided sufficient s...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2020.11.037
更新日期:2021-01-22 00:00:00
abstract::Regional haemodynamic control by the cardiovascular baroreceptors was examined in dogs anaesthetized with 1 + MAC halothane in oxygen (1%). The open-loop relationships between carotid sinus pressure (CSP) and regional haemodynamics in the iliac, renal, mesenteric, aortic and coeliac beds were examined before vagotomy,...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/49.6.535
更新日期:1977-06-01 00:00:00
abstract::The fresh gas flow rate necessary to prevent rebreathing in T-piece anaesthesia is well established at twice total ventilation. The minimum reservoir volume to avoid air dilution of anaesthetic gases in the alveolus at this flow rate is, however, undecided. A lung model was constructed to represent spontaneous respira...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/57.8.803
更新日期:1985-08-01 00:00:00
abstract:BACKGROUND:Recent studies have shown that ultrasound guidance for paediatric regional anaesthesia can improve the quality of upper extremity and neuraxial blocks. We therefore investigated whether ultrasound guidance for sciatic and femoral nerve blocks prolongs sensory blockade in comparison with nerve stimulator guid...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aem092
更新日期:2007-06-01 00:00:00
abstract::A case of an infant receiving orthotopic heart transplantation with over-sized donor heart was reported. Left lower pulmonary venous obstruction after sternotomy closure was detected by transoesophageal echocardiography (TOE) and the decision to delay sternal closure was made and the clinical outcome was very satisfac...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/88.4.590
更新日期:2002-04-01 00:00:00
abstract::Forty patients (age range 60-79 yr) undergoing transurethral surgery were allocated randomly to receive 0.5% plain bupivacaine 4 ml at the L2-3 (n = 20) or L4-5 (n = 20) space. The solution was injected over 30 s with the patient in the sitting position. The patient was kept sitting for 2 min, then placed supine and, ...
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/64.2.170
更新日期:1990-02-01 00:00:00
abstract::Lung function and clinical evidence of muscle weakness were assessed in 12 ASA I patients who received vecuronium 0.01 mg kg-1 pretreatment as a part of their anaesthetic management, before and 3 min after pretreatment. Most patients demonstrated ptosis and diplopia, while five of the 12 were unable to raise the head ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/69.3.318
更新日期:1992-09-01 00:00:00
abstract:BACKGROUND:Multiple cognitive and psychiatric disorders are associated with an increased tonic inhibitory conductance that is generated by α5 subunit-containing γ-aminobutyric acid type A (α5 GABAA) receptors. Negative allosteric modulators that inhibit α5 GABAA receptors (α5-NAMs) are being developed as treatments for...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1016/j.bja.2020.11.032
更新日期:2020-12-30 00:00:00
abstract:BACKGROUND:Intubation of a patient with limited cervical spine movement or in whom movement of the cervical spine is not desirable is always a challenge even to the most experienced anaesthesiologist. The intubating laryngeal mask airway (ILMA) and the Bullard laryngoscope (BL) are two instruments recommended for endot...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aem127
更新日期:2007-08-01 00:00:00
abstract::A retrospective study of serious non-fatal complications of extradural block in obstetric practice was carried out using a postal questionnaire. Two hundred and three obstetric units in the United Kingdom (responsible for 2,580,000 deliveries from 1982 to 1986 inclusive) responded. A total of 505,000 extradural blocks...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/64.5.537
更新日期:1990-05-01 00:00:00
abstract::Atropine and glycopyrronium are frequently used for premedication to reduce oral and respiratory secretions and prevent bradycardia. Glycopyrronium is said to have similar antisialagogue effects, but is less likely to cause significant tachycardia than atropine. Different antimuscarinic receptor selectivity patterns c...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/74.5.549
更新日期:1995-05-01 00:00:00
abstract:BACKGROUND:Serum vascular endothelial growth factor-C (VEGF-C), transforming growth factor-β (TGF-β), and interleukin (IL)-6 promote angiogenesis and metastases in colon cancer. We hypothesized that patients who received propofol-epidural anaesthesia (PEA) would exhibit decreases in VEGF-C, TGF-β, and IL-6 and an incre...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aeu148
更新日期:2014-07-01 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::The Walton-Brodie strain gauge arch is an instrument that quantitatively measures CF. Like many methods, the strain gauge arch is affected by loading conditions and heart rate. Nevertheless, this methodology, when properly used, has proved very useful in describing the direct action of anaesthetic drugs. Knowledge fro...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,评审
doi:10.1093/bja/60.suppl_1.78s
更新日期:1988-01-01 00:00:00
abstract::We have compared the effects of progressive (30% and 60%) in vitro haemodilution with hydroxyethyl starch (HES), gelatin (GEL) and albumin (ALB) with haemodilution using 0.9% saline in 96 patients by thrombelastography. Haemodilution with HES, GEL and ALB significantly (P < 0.05) compromised coagulation time (k), angl...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/78.6.684
更新日期:1997-06-01 00:00:00
abstract::We present a case of fatal cardiac tamponade that occurred in association with a peripherally inserted central catheter (PICC) inserted from the right antecubital fossa. Migration of the catheter from the right atrium within 24 h of insertion lead to the administration of a potassium-enriched sodium chloride solution ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aem181
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:In a prospective, randomized, double-blind, placebo-controlled trial, we investigated the effect of adding meperidine 10 mg to intrathecal bupivacaine on the duration of early postoperative analgesia in 40 patients having elective Caesarean section under spinal anaesthesia. METHODS:Patients received intrath...
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/88.3.379
更新日期:2002-03-01 00:00:00
abstract::This study tests the hypothesis that naloxone, but not its quarternary salt, naloxone methiodide (which does not enter the central nervous system), improves recovery from myocardial stunning in conscious dogs. Twenty dogs were chronically instrumented for measurement of heart rate, left atrial, aortic and left ventric...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/86.4.545
更新日期:2001-04-01 00:00:00
abstract:BACKGROUND:There are no published data to predict tracheostomy tube size as growth proceeds in children requiring long-term ventilation. METHODS:A retrospective audit was undertaken of children having long-term ventilation, managed from the Southport spinal injuries unit. The dates of step-up in size of tracheostomy t...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeh296
更新日期:2005-01-01 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:This study was undertaken to compare the effects of general anaesthesia (GA) and spinal anaesthesia (SA) on the need for postoperative hospitalization and early postoperative comfort in patients undergoing fast-track total knee arthroplasty (TKA). METHODS:One hundred and twenty subjects were randomly alloca...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aet104
更新日期:2013-09-01 00:00:00
abstract::The relative analgesic efficacy and side-effect profile of peripheral nerve blockade (PNB) techniques compared with lumbar epidural analgesia for major knee surgery is unclear. We undertook a systematic review and meta-analysis of all randomized trials comparing epidural analgesia with PNB for major knee surgery. Eigh...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,meta分析,评审
doi:10.1093/bja/aem373
更新日期:2008-02-01 00:00:00
abstract::Muscle biopsy and in vitro contracture tests for diagnosis of susceptibility to malignant hyperthermia (MH) were performed in two patients who had developed fever and severe myolysis during exercise. MH susceptibility was confirmed in one patient, but in the other, exercise-induced heat stroke proved to be the correct...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/66.1.138
更新日期:1991-01-01 00:00:00
abstract::A disposable patient-controlled analgesia (PCA) device was evaluated in 20 children after major abdominal, urological and orthopaedic surgery. All patients were given a high dependency level of nursing care in general wards. Efficacy (as assessed by hourly pain scores) was comparable to that achieved in a matched cont...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/68.4.411
更新日期:1992-04-01 00:00:00
abstract:BACKGROUND:Priming during anaesthesia has been hard to replicate and the conditions under which it occurs remain poorly understood. We replicated and extended a recent study to determine whether intraoperative priming during propofol and nitrous oxide anaesthesia is a reliable phenomenon, whether it occurs due to aware...
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/aeh289
更新日期:2005-01-01 00:00:00
abstract::We describe the anaesthetic management of a patient who underwent transthoracic endoscopic vagotomy. One-lung ventilation was necessary to provide adequate surgical access. Potential intraoperative problems involved arterial oxygen saturation during one-lung ventilation, unequal intrathoracic pressures causing mediast...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/68.3.318
更新日期:1992-03-01 00:00:00
abstract:BACKGROUND:Anaesthesia and surgery are associated with impairment of the immune system expressed as an excessive proinflammatory immune response and suppression of cell-mediated immunity that may affect the course of the postoperative period. Addition of anaesthetic agents capable of attenuating the alterations in peri...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aem218
更新日期:2007-10-01 00:00:00
abstract::Hypothermia during prolonged surgery may be prevented by active and passive warming methods. We have compared randomly two types of occlusive body wraps in groups of 20 patients. One wrap had additional reflective properties which, by reducing radiative in addition to convective and evaporative heat loss, was expected...
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/79.6.766
更新日期:1997-12-01 00:00:00