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 taste. In the present study we have investigated whether it is possible to reduce the concentration of acetylene to 0.3% in the rebreathing bag without degrading the repeatability of the estimated cardiac output. The problem was elucidated theoretically and experimentally. A theoretical investigation was carried out by producing an acetylene rebreathing curve from a single alveolus lung model. The theoretical study showed that the random noise arising from the gas analyzer gives rise to less than 10% of the total variation of the estimated cardiac output. The results of the experimental study showed that it is possible to reduce the acetylene concentration to 0.3% without decreasing the reproducibility of the acetylene rebreathing method.
journal_name
Acta Anaesthesiol Scandjournal_title
Acta anaesthesiologica Scandinavicaauthors
Wendelboe Nielsen O,Hansen S,Christensen P,Grønlund Jdoi
10.1111/j.1399-6576.1990.tb03102.xsubject
Has Abstractpub_date
1990-07-01 00:00:00pages
354-7issue
5eissn
0001-5172issn
1399-6576journal_volume
34pub_type
杂志文章abstract:BACKGROUND:The paucity of studies regarding cognitive function in patients with chronic pain, and growing evidence regarding the cognitive effects of pain and opioids on cognitive function prompted us to assess cognition via neuropsychological measurement in patients with chronic non-cancer pain treated with opioids. ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2012.02760.x
更新日期:2012-11-01 00:00:00
abstract:BACKGROUND:We hypothesized that, compared with propofol, desflurane prolongs the antegrade accessory pathway effective refractory period (APERP) in children undergoing radiofrequency catheter ablation for Wolff-Parkinson-White (WPW) syndrome. METHODS:In this randomized crossover study, children aged 4.1-16.1 years und...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1111/aas.13023
更新日期:2018-02-01 00:00:00
abstract::A young trauma patient developed severe adult respiratory distress syndrome (ARDS), right heart failure, hepatic congestion and an extreme hepatomegaly but no hepatic failure. The patient needed 100% oxygen during ventilatory support for 80 days and was weaned from the ventilator after more than 100 days. The hepatome...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2002.460724.x
更新日期:2002-08-01 00:00:00
abstract::A 42-year-old patient had undergone total hip replacement for aseptic femoral head necrosis 9 years previously. He now presented with loosening of the prosthesis and pseudoarthrosis sustained following a femoral shaft fracture 7 months earlier. A total hip replacement was carried out in general anaesthesia combined wi...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1990.tb03064.x
更新日期:1990-02-01 00:00:00
abstract:BACKGROUND:As evidence exist that severe neurological damage or prolonged death after inappropriate CPR could occur, restraints and indications for CPR were perceived as necessary. The objective of this review is to examine policies and attitudes towards end-of-life decisions in Europe and North America and to outline ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,评审
doi:10.1111/j.1399-6576.2006.01150.x
更新日期:2006-11-01 00:00:00
abstract::Twenty patients, 36-78 years old, with a history of chronic obstructive lung disease, and immediately after operation mostly for cardiac disease, were treated with ipratropium bromide (IB, 15 cases) or placebo (5 cases). A metered dose inhaler with a new adapter was used during postoperative ventilator treatment. In t...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章
doi:10.1111/j.1399-6576.1987.tb02638.x
更新日期:1987-10-01 00:00:00
abstract:BACKGROUND:Baricity is one of the most important factors to influence the characteristics of distribution of the local anaesthetic and hence success and spread of the blockade. Bupivacaine is rendered hyperbaric by adding glucose. The effect of differing degrees of hyperbaricity remains to be evaluated. METHODS:Two hy...
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.1399-6576.2000.00510.x
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:The INFECT project aims to advance our understanding of the pathophysiological mechanisms in necrotizing soft tissue infections (NSTIs). The INFECT observational study is part of the INFECT project with the aim of studying the clinical profile of patients with NSTIs and correlating these to patient-important...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,多中心研究
doi:10.1111/aas.13024
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:A low dose solution of adrenaline 2 microg x ml(-1), fentanyl 2 microg x ml(-1) and bupivacaine 1 mg x ml(-1) has been reported to give superior pain control when used for epidural analgesia after major surgery. The present paper describes the compounding and chemical stability of this triple-component solut...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2000.440713.x
更新日期:2000-08-01 00:00:00
abstract::Female geriatric patients (mean age 80.9 years; n = 169) undergoing surgery for hip fracture were given epidural, neurolept analgesia, ketamine, enflurane or halothane anesthesia. The rate of survival in the different groups was studied up to 4 years after the operation and compared with the expected survival of norma...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1982.tb01825.x
更新日期:1982-12-01 00:00:00
abstract::The aim of this study was to evaluate the effects of propofol administration (2 mg.kg-1 i.v.) on the airways resistances and respiratory mechanics of patients affected by COPD exacerbation, requiring mechanical ventilation. Twenty patients required anaesthesia for diagnostic or therapeutic procedures. Fourteen consecu...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1993-01-01 00:00:00
abstract::35S-thiopental 15 mg/kg and 14C-diazepam 5 mg/kg were injected intravenously in separate groups of rats (n = 6) at 1 ATA air and at 71 ATA air-He. Total radioactivity was measured in the brain, liver, kidney, muscle and fat after 1, 3, 5 and 15 min. The thiopental content was significantly reduced at pressure in the b...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1983.tb01982.x
更新日期:1983-12-01 00:00:00
abstract:BACKGROUND:Cardiopulmonary resuscitation (CPR) has the potential to save many lives. Used indiscriminately though, it may be harmful and not in the best interest of the patient. An advance directive to refrain from resuscitation in selected patients is probably not uncommon in Sweden, but guidelines ruling this are sti...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1997.tb04642.x
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Intraoperative awareness with explicit recall may be followed by long-lasting mental symptoms. However, the average risk for developing mental sequelae after awareness, and the average severity and the duration of symptoms has not previously been illustrated in a consecutive series of awareness cases. METHO...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2002.t01-1-460301.x
更新日期:2002-03-01 00:00:00
abstract::Preoperative pulmonary parameters were evaluated in 37 extremely obese but otherwise healthy patients. They were on average 100.9% overweight. X-ray of the chest, electrocardiograms, and residual volume, vital capacity, total lung capacity, maximum breathing capacity, forced expired volume in 1 second, and related rat...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1977.tb01230.x
更新日期:1977-01-01 00:00:00
abstract::Patients undergoing surgery under regional anaesthesia often receive narcotic analgesics for premedication which may modify the sedative and amnesic effects of intravenously administered diazepam. Sixty-two patients scheduled for upper extremity surgery under intravenous regional anaesthesia received 0.15 mg/kg of dia...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1981.tb01660.x
更新日期:1981-08-01 00:00:00
abstract:BACKGROUND:The objective of this retrospective study was to determine the risk factors for acute kidney injury (AKI), including albumin, in children who underwent cardiac surgery. In addition, we evaluated the association between preoperative serum albumin level and postoperative AKI in these patients. METHODS:This re...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13210
更新日期:2018-11-01 00:00:00
abstract::A patient with a history of coronary artery diseases developed new ST segment depressions in the ECG registration during a low dose (0.7%) isoflurane anaesthesia that was combined with a continuous thoracic epidural analgesia. Simultaneously a small decrease in mean arterial blood pressure (MAP) was noted. During the ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1994.tb03941.x
更新日期:1994-07-01 00:00:00
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journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章
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更新日期:1982-10-01 00:00:00
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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.1399-6576.1977.tb01258.x
更新日期:1977-01-01 00:00:00
abstract:BACKGROUND:An increasing amount of both experimental and epidemiological data indicates that neonatal anaesthesia causes disruption of normal brain development in rodents and primates, as manifested by acute increased apoptosis and long-lasting altered behaviour and learning. It is necessary to seek strategies that avo...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2012.02722.x
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND AND METHODS:The infusion of dextran solutions is associated with haemodilution and, under some conditions, with a slight increase in plasma viscosity. To clarify the compound effects of simultaneous haemodilution and plasma viscosity increases on macro- and microhaemodynamics, we investigated the changes in ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1995.tb04050.x
更新日期:1995-02-01 00:00:00
abstract::Pneumoperitoneum following cardiopulmonary resuscitation (CPR) results from a thoracic air leak (pneumothorax, pneumomediastinum) with escape of the air through diaphragmatic apertures (mostly foramen of Winslow) or primary perforation of the gastrointestinal tract (stomach or esophagus). We report three cases of pneu...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1991.tb03279.x
更新日期:1991-04-01 00:00:00
abstract:BACKGROUND:It has been reported that less postoperative morphine is required following liver transplantation than is required following open cholecystectomy. This may be attributable to endogenous factors rather than to altered morphine pharmacokinetics. We measured the plasma concentrations of two endogenous neuropept...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1996.tb05581.x
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:As intraoperative fluid accumulation may negatively impact post-operative organ function, strategies minimizing edema generation should be sought for. During general anesthesia, isoflurane in contrast to sevoflurane has been associated with increased fluid extravasation and edema generation. In this study, w...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12725
更新日期:2016-08-01 00:00:00
abstract::Fluctuating PEEP (F-PEEP) is a newly developed PEEP in which end-expiratory pressure (EEP) is periodically changed within a certain range. In a dog model with unilateral lung injury induced by the introduction of hydrochloric acid, F-PEEP in which the EEP was periodically changed from 0.5 to 1.5 kPa at periods of 6 mi...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1988.tb02748.x
更新日期:1988-07-01 00:00:00
abstract:BACKGROUND:Inhalational anesthetics must be removed from anesthetic machines to prevent malignant hyperthermia (MH) in susceptible patients or to treat MH occurring during inhalational general anesthesia. This study examines the sevoflurane washout from the GE Avance and Amingo Carestations™. METHODS:The care stations...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2011.02506.x
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND:The noble gas helium induces cardio- and neuroprotection by pre- and post-conditioning. We investigated the effects of helium pre- and post-conditioning on the brain and heart in a rat resuscitation model. METHODS:After approval by the Animal Care Committee, 96 Wistar rats underwent cardiac arrest for 6 min...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13041
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Management of acute respiratory distress syndrome (ARDS) patients implies the selection of the adequate ventilatory parameters, essentially PEEP and tidal volume (Vt), to prevent ventilator-induced lung injury. These parameters should be reset as the lung injury evolves. Among the different methods proposed ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章
doi:10.1034/j.1399-6576.2003.00011.x
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:Epidural opioid analgesia has become more popular for postoperative pain treatment in children. Epidural opioids are associated with adverse effects such as respiratory depression, excessive sedation, protracted vomiting, urinary retention and pruritus. Following minor surgery, ketoprofen has a synergistic e...
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.1399-6576.1999.430715.x
更新日期:1999-08-01 00:00:00