Abstract:
BACKGROUND:The usefulness of the PFA-100 in assessing the risk of bleeding in non-cardiac surgery is not clear. This study aims to examine this by correlating preoperative PFA-100 measurement with perioperative bleeding in patients receiving cyclooxygenase (COX) inhibitors. METHODS:PFA-100 with adenosine-5'-diphosphate (ADPCT) and epinephrine (EPICT) cartridges were measured before operation in consecutive patients undergoing elective total knee replacement and taking different COX inhibitors. Surgery and anaesthesia were performed by the same team using standardized techniques. Intraoperative blood loss and postoperative drain output were recorded by anaesthetists and nurses blinded to the PFA-100 measurements. Surgeons, similarly blinded, were asked to rate the quality of haemostasis. Correlation was sought between these data and PFA-100 measurements. RESULTS:Thirty patients were studied, involving 51 knees. Preoperative PFA-100 EPICT was correlated with drain output (r=0.30, P=0.03). The correlation becomes stronger when a 20% in vitro haemodiluted sample was used for measurement (r=0.42, P=0.01). Receiver-operating characteristic curve analysis using the diluted measurements [area under curve (AUC) 0.74 (95% CI 0.54-0.94)] suggested using a cut-off value of 188 s for EPICT, which will predict excessive drain output with 89% sensitivity, 54% specificity, and a likelihood ratio of 1.93. Diluted EPICT was also correlated with surgeon rating of haemostasis (r=0.36, P=0.04) although none of the measurements correlated with intraoperative blood loss. CONCLUSIONS:Preoperative PFA-100 prolongation is correlated with increased postoperative drain output. It can be a potentially useful preoperative measurement in patients taking COX inhibitors.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
Ng KF,Lawmin JC,Tsang SF,Tang WM,Chiu KYdoi
10.1093/bja/aep091subject
Has Abstractpub_date
2009-06-01 00:00:00pages
779-84issue
6eissn
0007-0912issn
1471-6771pii
S0007-0912(17)34402-1journal_volume
102pub_type
杂志文章abstract::We tested the hypothesis that premedication with i.m. midazolam decreases core temperature dose-dependently. We studied six male volunteers, in random order, on 3 days: (1) no midazolam administration (control day), (2) midazolam 0.025 mg kg-1 i.m., (3) midazolam 0.075 mg kg-1 i.m. On the first day, subjects were main...
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/78.4.396
更新日期:1997-04-01 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::Placental blood flow was measured during the first stage of normal labour using a xenon-133 clearance technique before and after segmental extradural analgesia. Analgesia was produced with 0.5% plain bupivacaine in eight patients and with 0.5% bupivacaine--adrenaline in 10 patients. Segmental extradural analgesia with...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/50.6.563
更新日期:1978-06-01 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::The effects of some anaesthetics and other agents used in anaesthetic practice on the neuromuscular blocking activity of cumulative doses of Org NC 45 have been studied in cats anaesthetized with chloralose. As expected from studies with other neuromuscular blocking drugs, both inhalation and i.v. anaesthetics reduced...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/53.8.785
更新日期:1981-08-01 00:00:00
abstract:BACKGROUND:Postoperative delirium and cognitive decline are common in elderly surgical patients after non-cardiac surgery. Despite this prevalence and clinical importance, no specific aetiological factor has been identified for postoperative delirium and cognitive decline. In experimental setting in a rat model, nitrou...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/ael106
更新日期:2006-06-01 00:00:00
abstract::As the route of breathing and use of airway apparatus such as mask, mouthpiece and noseclip can alter breathing pattern, this study has used the helium dilution method to estimate the effects of mouthpiece and mask breathing on functional residual capacity (FRC) in the supine position, and the change in FRC that occur...
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/76.4.560
更新日期:1996-04-01 00:00:00
abstract::We have studied the efficacy of preoxygenation using the Triservice Anaesthetic Apparatus (TSA) in healthy patients and found it to be unsatisfactory. An alternative technique suitable for field use was explored. The Mapleson D system (Bain) was found to be suitable for preoxygenation with a fresh gas flow of only 4 l...
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/66.2.196
更新日期:1991-02-01 00:00:00
abstract::One explanation for diminished opioid analgesic efficacy is opioid-induced hyperalgesia (OIH). We report a case of OIH in an infant with gastroschisis, requiring multiple surgical interventions and prolonged sedation for ventilation. This is the first report of OIH in an infant. On day 41 of life after nine separate s...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aer332
更新日期:2012-01-01 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::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::Plain bupivacaine 0.5% or 0.75% was injected intrathecally in four groups of 10 patients. Group A received 0.75% bupivacaine 2.7 ml at L3/4, group B 0.5% bupivacaine 4 ml at L3/4, group C 0.75% bupivacaine 2.7 ml at L2/3 and group D 0.75% bupivacaine 2 ml at L3/4. A very wide range of height of block was found in each...
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/58.3.292
更新日期:1986-03-01 00:00:00
abstract:BACKGROUND:Patients undergoing non-cardiac, non-vascular surgery are at risk of major cardiovascular complications. In non-cardiac surgery, troponin elevation has previously been shown to be an independent predictor of major adverse cardiac events and postoperative mortality; however, a majority of studies have focused...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,meta分析,评审
doi:10.1093/bja/aew321
更新日期:2016-11-01 00:00:00
abstract::Fifteen patients (10 men and five women; mean age 67.3 yr) with a history of a recent (less than 1 yr) myocardial infarction underwent ambulatory ECG monitoring for 5 days after non-cardiac surgery. The duration, number and severity of ischaemic episodes were maximal within the first 12 h after surgery and again on th...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/67.3.317
更新日期:1991-09-01 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:BACKGROUND:Capnography may provide useful non-invasive bedside information concerning heterogeneity in lung ventilation, ventilation-perfusion mismatching and metabolic status. Although the capnogram may be recorded by mainstream and sidestream techniques, the capnogram indices furnished by these approaches have not pr...
journal_title:British journal of anaesthesia
pub_type: 评论,杂志文章
doi:10.1093/bja/aew127
更新日期:2016-07-01 00:00:00
abstract::We have compared deep body temperature (DBT) measured at the forehead with the core temperatures of the nasopharynx, oesophagus and rectum during the warming phase of cardiopulmonary bypass (CPB) (moderate hypothermia of 26.7-29.6 degrees C) in 12 patients. DBT was measured transcutaneously by an insulated thermistor ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/71.4.583
更新日期:1993-10-01 00:00:00
abstract::A high degree of safety from fires and explosions exists in operating theatres in the U.K. and this is reflected in the extremely low number of fatal and non-fatal accidents which occur. This has been achieved by safety precautions which in some respects have been over-careful and overexpensive. Antistatic precautions...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/50.7.659
更新日期:1978-07-01 00:00:00
abstract::We compared psychomotor recovery after total intravenous anaesthesia (TIVA) with remifentanil/propofol and balanced anaesthesia (BAL) with etomidate/fentanyl/isoflurane in 40 patients, ASA I-III, aged > or =80 yr undergoing elective cataract surgery. Recovery times were recorded and psychomotor recovery was assessed a...
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/86.2.203
更新日期:2001-02-01 00:00:00
abstract::Patients receiving opioids report feeling sleepy, but opioids actually inhibit the rapid eye movement phase of sleep (REM). Inhibition of REM sleep is followed by a rebound increase in REM sleep associated with cardiopulmonary complications. The medial pontine reticular formation (mPRF) is a brain region from which mo...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/74.2.188
更新日期:1995-02-01 00:00:00
abstract::We have evaluated the effect of delivering nitric oxide using a continuous flow system (CFS) or two commercially available proportional gas injection systems (PGIS), Nodomo (Dräger, Lübeck, Germany) and Pulmonox-Mini (Messer Griesheim Austria, Gumpoldskirchen, Austria) on measured and simulated concentrations of nitri...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/81.4.544
更新日期:1998-10-01 00:00:00
abstract:BACKGROUND:This study compares cardiac output (CO) measurements obtained by lithium dilution (LiDCO), pulse power analysis (PulseCO), and continuous thermodilution (CTD) with bolus thermodilution (BTD) in ponies. METHODS:Eight isoflurane-anaesthetized Shetland ponies received xylazine, ketamine, and midazolam infusion...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aes269
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND:Ketamine-induced neuroapoptosis has been attributed to diverse stress-related mechanisms. Glycogen synthase kinase-3β (GSK-3β) is a multifunctional kinase that is active in neuronal development and linked to neurodegenerative disorders. We hypothesized that ketamine would enhance GSK-3β-induced neuroapopotos...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aet057
更新日期:2013-06-01 00:00:00
abstract:BACKGROUND:Prolonged postoperative decrease in lung function is common after major upper abdominal surgery. Evidence suggests that ventilation with low tidal volumes may limit the damage during mechanical ventilation. We compared postoperative lung function of patients undergoing upper abdominal surgery, mechanically v...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,随机对照试验
doi:10.1093/bja/aes140
更新日期:2012-08-01 00:00:00
abstract::In rats injected s.c. with formalin, behavioural correlates of the amount and pattern of Fos-like immunoreactivity (Fos-Ll) (molecular responses to pain) were studied to test if early phase treatment with 75% nitrous oxide or 2% halothane, or both, suppressed subsequent spinal sensitization. Rats were allocated to fou...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/76.1.99
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Perioperative warming is recommended for surgery under anaesthesia, however its role during Caesarean delivery remains unclear. This meta-analysis aimed to determine the efficacy of active warming on outcomes after elective Caesarean delivery. METHODS:We searched databases for randomized controlled trials u...
journal_title:British journal of anaesthesia
pub_type: 杂志文章,meta分析,评审
doi:10.1093/bja/aev325
更新日期:2015-10-01 00:00:00
abstract::We have measured in a double-blind study the changes in intraocular pressure (IOP) in 40 consecutive patients (pretreated with fentanyl or alfentanil) who received suxamethonium and tracheal intubation. Although IOP increased significantly following administration of suxamethonium, mean IOP in both groups remained sig...
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/63.6.688
更新日期:1989-12-01 00:00:00
abstract::An animal model was established to study the toxic effects of hyperoxia and the consequent changes in intracellular antioxidant status. Superoxide dismutase, catalase and glutathione peroxidase activities were measured in erythrocytes, liver and lung, in addition to cellular glutathione concentrations and its associat...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/59.6.760
更新日期:1987-06-01 00:00:00
abstract:BACKGROUND:The pathophysiology of the serotoninergic system in malignant hyperthermia (MH) is not completely understood. The serotonin-2 (5HT(2A)) receptor agonist 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane hydrochloride (DOI) induces typical MH symptoms, including skeletal muscle rigidity, an increase in body tempe...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/aeg172
更新日期:2003-08-01 00:00:00
abstract::One hundred and one patients with osteoarthritis were randomly allocated to undergo total hip arthroplasty under either spinal (subarachnoid) or general anaesthesia. Venous blood was sampled before, during and after surgery and on the 5th day after operation to study the haemostatic mechanism. There were no preoperati...
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/59.5.561
更新日期:1987-05-01 00:00:00