Abstract:
BACKGROUND:Electroencephalogram (EEG)-based depth of anaesthesia monitoring is susceptible to contaminating electromyographic (EMG) activity. Many authorities have suggested that anaesthesiologists using these monitors should interpret the raw EEG waveform seen on the anaesthesia monitor. METHODS:In 34 patients anaesthetized with propofol using two doses of rocuronium (0.6 and 1.2 mg/kg), we studied whether the EMG arousal can be detected visually on the anaesthesia monitor. The Bispectral Index (BIS) and Entropy biosignals on the monitor were recorded with a video camera, and the one-channel EEG recorded by the Entropy strip was collected on a laptop computer. The recordings and the one-channel EEG were analyzed offline by two experts (anaesthesiologist and neurophysiologist), both with a long experience on anaesthesia-related EEG. RESULTS:EMG arousal existed in 14/34 and 13/33 patients in the BIS and Entropy biosignals, respectively. The anaesthesiologist detected EMG on the monitor in 7/14 patients with BIS (sensitivity 50%) and in 4/13 patients with Entropy (31%). The clinical neurophysiologist detected EMG in 6/14 (43%) patients with BIS and in 5/13 (38%) with Entropy. The specificity of the EMG analyses was 55 and 65% with BIS, and 85 and 90% with Entropy. EMG arousal was detected in BIS biosignal in 10/17 and 4/17 patients with 0.6 and 1.2 mg/kg doses of rocuronium (P = 0.04). CONCLUSIONS:In contrast to many EEG phenomena, EMG activity cannot be accurately detected visually from the raw EEG on the anaesthesia monitor. Further development in the quality of the anaesthesia monitors is warranted.
journal_name
Acta Anaesthesiol Scandjournal_title
Acta anaesthesiologica Scandinavicaauthors
Aho AJ,Yli-Hankala A,Lyytikäinen LP,Kamata K,Jäntti Vdoi
10.1111/j.1399-6576.2012.02761.xsubject
Has Abstractpub_date
2013-03-01 00:00:00pages
364-72issue
3eissn
0001-5172issn
1399-6576journal_volume
57pub_type
杂志文章,随机对照试验abstract:BACKGROUND:Pain is a sensory and emotional experience that is influenced by physiologic, sensory, affective, cognitive, socio-cultural, and behavioral factors. Consistent with the perspective to improve the postoperative pain control, the present study has the purpose of assessing the effect of presurgical clinical fac...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2002.461015.x
更新日期:2002-11-01 00:00:00
abstract::Sixty children, aged 1-12 years, were investigated with regard to gastric pH and volume before general anaesthesia. Thirty children (group D) received diazepam 0.75 mg/kg b.w. rectally 1 h before anaesthesia. Thirty children (group L) received a "lytic cocktail" (pethidine 28 mg, promethazine 7 mg, chlorpromazine 7 mg...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1984.tb02139.x
更新日期:1984-12-01 00:00:00
abstract:BACKGROUND:It has been proposed that the analysis of positive end-expiratory pressure (PEEP)-induced volume changes can quantify alveolar recruitment. The potential of a lung to be recruited is expected to be high in acute respiratory distress syndrome (ARDS), where collapsed lung tissue is very common. The volume chan...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12432
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Critically ill patients at southern latitudes have been shown to have low vitamin D levels that were associated with prolonged hospital stay. To our knowledge no studies have been conducted on vitamin D status amongst critically ill patients at high northern latitudes. Despite the Icelandic population tradit...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12748
更新日期:2016-10-01 00:00:00
abstract::Premedication for cardiac surgical patients attempts to achieve relief of anxiety with minimal or no cardiorespiratory changes. Nalbuphine (NUBAIN) and morphine produced similar decreases in respiratory rate (1-3 breaths per min) and PaO2 (averaging 1.34 kPa), and increases in arterial PaCO2 (averaging 0.56 kPa). Card...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1984.tb02066.x
更新日期:1984-06-01 00:00:00
abstract::The potency and speed of onset of fazadinium and d-tubocurarine have been compared at three cumulative doses. Wtih thiopentone as the induction agent, the dose ratio fazadinium/d-tubocurarine ranged from 1.2 to 1.3 for single twitch reduction and from 1.1 to 1.2 for reduction of tetanus. The times taken for the develo...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1979.tb01459.x
更新日期:1979-08-01 00:00:00
abstract::Propofol (2,6-di-isopropylphenol) 1.5-2.0 mg/kg i.v. was compared with thiopentone 3.0-4.0 mg/kg i.v. as an induction agent in anaesthesia for computerised tomography (CT) of the brain in children. Both induction agents were combined with diazepam 0.2 mg/kg i.v. Thirty children (ASA physical status I-II) aged 3 to 10 ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1399-6576.1989.tb02884.x
更新日期:1989-02-01 00:00:00
abstract:BACKGROUND:Lung tissue is metabolically active and consumes oxygen. The oxygen content difference between arterial and mixed venous blood does not include the effect of pulmonary tissue oxygen uptake. Thus, oxygen consumption (VO2) of the lung should be reflected as a difference between VO2 measured by gas exchange and...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1997.tb04792.x
更新日期:1997-08-01 00:00:00
abstract::The acetylene rebreathing method is a reliable noninvasive method for estimation of cardiac output. However, the method is not commonly used for clinical purposes. This is due mainly to the fact that acetylene is explosive at concentrations above 2% and that acetylene at concentrations above 0.5% has an unpleasant tas...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1990.tb03102.x
更新日期:1990-07-01 00:00:00
abstract::The ability of graduated compression elastic stockings to prevent hypotension during elective epidural caesarean section was evaluated. Twenty women were randomly assigned to two groups of ten, one group being fitted with the stockings. The incidence and degree of hypotension were the same in both groups. Graduated co...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1399-6576.1987.tb02548.x
更新日期:1987-04-01 00:00:00
abstract:BACKGROUND:Myocardial dysfunction occurs commonly in septic shock. It is not known whether this is due to local ischaemia and metabolic disturbances. Our hypothesis was that endotoxaemic myocardial dysfunction may be associated with interstitial ischaemic and metabolic changes, measured using interstitial microdialysis...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2008.01603.x
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND:Further characterization of the post-cardiac arrest syndrome (PCAS) is essential to better understand the mechanisms resulting in injury and death. We investigated serial serum concentrations of the stress hormone c-terminal provasopressin (CT-proAVP or copeptin), the cardiac biomarker MR-proANP and a biomar...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12282
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:Thoracic epidural analgesia (TEA) is reported to provide effective analgesia following cardiac surgery. We compared the effect of buprenorphine (BN) through the lumbar and thoracic epidural routes for postoperative analgesia following coronary artery bypass graft surgery (CABG). METHODS:Forty patients with ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1034/j.1399-6576.1999.430404.x
更新日期:1999-04-01 00:00:00
abstract::The influence of nitrous oxide on the recovery of bowel function was studied in 36 patients anaesthetised for elective abdominal hysterectomy with or without salpingo-oophorectomy. Patients were randomly assigned to receive either isoflurane in nitrous oxide and 30% oxygen (N2O group) or isoflurane in air and 30% oxyg...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1399-6576.1993.tb03791.x
更新日期:1993-10-01 00:00:00
abstract:BACKGROUND:In mature animals with surfactant deficiency induced by lung lavage, the therapeutic effect of exogenous surfactant is enhanced by a lung recruitment maneuver. We then tested whether a lung recruitment maneuver at birth immediately before surfactant treatment would improve lung function also in preterm lambs...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2001.450811.x
更新日期:2001-09-01 00:00:00
abstract::The effects of droperidol on the systemic vascular resistance (SVR) and the venous capacitance were studied during cardiopulmonary bypass (CPB) in 24 patients. CPB was performed with either pulsatile or non-pulsatile flow. During non-pulsatile flow, droperidol (0.15 mg X kg-1 and 0.30 mg X kg-1) decreased SVR and incr...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1987.tb02586.x
更新日期:1987-07-01 00:00:00
abstract::A questionnaire was sent to the first 371 patients investigated for MH susceptibility at the Danish MH Register, in order to assess sequelae from the muscle biopsy and possible subsequent anaesthetic complications. The purpose was to evaluate both the safety of anaesthetizing MH-susceptible (MHS) patients without the ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1991.tb03377.x
更新日期:1991-11-01 00:00:00
abstract:BACKGROUND:Cyclosporine A has generated intense interest in the field of cardioprotection due to its ability to protect the mitochondria at reperfusion by blocking the opening of the mitochondrial permeability transition pore. The aim of our study was to examine the cardioprotective effect of Sandimmun, a clinically av...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2010.02241.x
更新日期:2010-08-01 00:00:00
abstract::Changes in central and coronary haemodynamics and myocardial oxygenation during anaesthesia induction, intubation, skin incision and sternotomy were studied in 24 patients undergoing a coronary artery bypass grafting operation under either high-dose fentanyl or enflurane anaesthesia. The anaesthesia induction caused n...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1985.tb02234.x
更新日期:1985-07-01 00:00:00
abstract::Inhalation anaesthetic agents are known to depress phagocytic functions such as mobilization, attachment, chemotactic motility, engulfment and intracellular killing. Mannose-specific sugar receptors on the surface of leukocytes are involved in a series of phagocytosis-related activities. To investigate the effect of a...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1990.tb03087.x
更新日期:1990-05-01 00:00:00
abstract::We encountered two cases of acute pancreatitis in patients with Cushing's disease following transnasal transsphenoidal hypophysectomy. In both cases propofol was used in bolus doses, and is thought to be the probable factor for its development. Since elevated cortisol levels in Cushing's disease poses a threat for pan...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2005.00751.x
更新日期:2005-10-01 00:00:00
abstract::Sister chromatid exchanges (SCE) and sister chromatid exchange points (SCE-points) were counted in lymphocytes in peripheral blood drawn from hospital personnel exposed to anesthetics as well as from persons not exposed. A total of 38 healthy persons were investigated, representing female nurse anaesthetists, male phy...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1980.tb01498.x
更新日期:1980-01-01 00:00:00
abstract:BACKGROUND:Sedation strategies and practice for patients on controlled ventilation is variable from place to place as well as over time. Less sedation results in shorter ventilation time and new ventilatory modes permit more awake patients. Previous works estimated sedative and analgesic use in Nordic ICUs some years a...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2004.00445.x
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:Postoperative cognitive dysfunction (POCD) is a common complication after cardiac and major non-cardiac surgery with general anaesthesia in the elderly. We hypothesized that the incidence of POCD would be less with regional anaesthesia rather than general. METHODS:We included patients aged over 60 years und...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1034/j.1399-6576.2003.00057.x
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:Use of ultrasound by anaesthesiologists performing regional blocks is rapidly gaining popularity. The aims of this review were to summarize and update accumulating evidence on ultrasound-guided nerve blocks, with an emphasis on the clinical relevance of the results and to critically appraise changing standar...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/j.1399-6576.2008.01666.x
更新日期:2008-07-01 00:00:00
abstract:BACKGROUND:To study whether plasma concentrations of procalcitonin (PCT), interleukin-6 (IL-6), complement 3a (C3a), C-reactive protein and white blood cell count (WBC) correlate with the presence of systemic inflammatory response syndrome (SIRS) during the early post-operative period after major colorectal surgery. M...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2004.00565.x
更新日期:2005-02-01 00:00:00
abstract::The effects of surfactant replacement by aerosol inhalation and by bolus instillation were compared in rats with respiratory failure induced by repeated lung lavage. The rats were anesthetized with pentobarbital sodium and mechanically ventilated with 100% oxygen. The PaO2 of control rats not given surfactant (n = 9) ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1994.tb03842.x
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Assessment of preload independent left ventricular function with conductance volumetry is traditionally accomplished by inflating a balloon in the inferior caval vein. Our aim was to investigate if a similar change in preload could be achieved by positive pressure ventilation with large tidal volume. METHOD...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2003.00084.x
更新日期:2003-05-01 00:00:00
abstract:BACKGROUND:An intact basement membrane at the dermal-epidermal junction is essential to the viability of the skin. The effect of sepsis on the basement membrane is unknown. METHODS:Skin biopsies were used to study basement membrane structure in severe sepsis (Day 1). Subsequent biopsies were taken on Day 8 and at 3 mo...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12539
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:Bone cementation may cause pulmonary vasoconstriction and ventilation/perfusion abnormalities in patients undergoing cemented hip hemiarthroplasty. In this randomised trial, we tested the hypothesis that intra-operative inhalation of prostacyclin could attenuate the increase in pulmonary vascular resistance ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1111/aas.13423
更新日期:2019-10-01 00:00:00