Abstract:
:The effect on central haemodynamics of a stepwise increase in airways pressure from spontaneous breathing (SB) to intermittent positive pressure ventilation with a positive end-expiratory pressure (PEEP) of 0, 8, 16 and 24 cmH2O was studied in eight pigs under ketamine anaesthesia. Compared with SB, cardiac output (CO) was reduced by 12, 36, 50 and 64% at the respective ventilator settings. The transmural pressures of the right and left atrium, measured as the difference between atrial and pleural pressure, both decreased with increments in airway pressure. At a PEEP level of 24, there was a threefold increase in pulmonary vascular resistance. This increase was secondary to the decrease in CO and no signs of CO deterioration due to the increased right ventricular afterload were found. When 250 ml of dextran 70 was administered at a PEEP level of 24 and the airway pressure was then released stepwise, the left ventricular function curve improved, disclosing a relative myocardial failure at the highest PEEP levels. It is concluded that the principal causative mechanisms in CO reduction due to increased intrathoracic pressure is a decrease in preload to the right ventricle. At high PEEP levels there are also signs of myocardial depression.
journal_name
Acta Anaesthesiol Scandjournal_title
Acta anaesthesiologica Scandinavicaauthors
Haldén E,Jakobson S,Janerås Ldoi
10.1111/j.1399-6576.1981.tb01701.xsubject
Has Abstractpub_date
1981-12-01 00:00:00pages
538-42issue
6eissn
0001-5172issn
1399-6576journal_volume
25pub_type
杂志文章abstract::We report on a 65-year-old female with an aneurysmal subarachnoid hemorrhage (SAH) that was followed clinically, radiologically and electrophysiologically before and after converting from intracranial pressure (ICP)-guided to ICP wave-guided intensive care management. Intracranial pressure-guided management is aimed a...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2007.01269.x
更新日期:2007-04-01 00:00:00
abstract::A case of bilateral eye hemorrhage after laparoscopic cholecystectomy, probably caused by an increase in venous blood pressure due to carbon dioxide insufflation, is reported. ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.2001.450821.x
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Inguinal hernia repair is a common surgical procedure, and different types of anesthetic techniques are in use. We wanted to test if preoperative inguinal field block (IFB) with ropivacaine would provide benefits in the postoperative period compared with general anesthesia and wound infiltration. METHODS:Si...
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.1399-6576.2002.460607.x
更新日期:2002-07-01 00:00:00
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::Application of self-administered postoperative prophylactic positive expiratory pressure (S-PEP) treatment in addition to conventional physiotherapy was investigated in 75 patients undergoing thoracotomy. Twenty-nine patients used a face-mask set supplied with an expiratory resistance (S-PEP group) and 27 patients use...
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.1399-6576.1986.tb02435.x
更新日期:1986-07-01 00:00:00
abstract:BACKGROUND:This retrospective study investigated the effect of nicotine dependence on required postoperative opioid administration in patients undergoing thoracic surgery. METHODS:The subjects consisted of 215 male patients (112 nonsmokers, 103 smokers) who underwent thoracic surgery and received postoperative patient...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.12430
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Erythropoietin (EPO) is a cytokine with organ-protective properties. We hypothesized that EPO could attenuate acute renal dysfunction and inflammation in a porcine model of ischemia-reperfusion (IR). Furthermore, we aimed to characterize the impact of EPO on systemic and renal hemodynamics, and renal oxygen ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2010.02369.x
更新日期:2011-02-01 00:00:00
abstract::Twenty-two children formed the basis for a controlled study of the effect and duration of the postoperatively applied caudal block on postoperative pain after genital operations. The purpose of the study was to compare the effect and duration of bupivacaine and morphine. Ten children (Group I, outpatients) underwent c...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1981.tb01668.x
更新日期:1981-10-01 00:00:00
abstract::One hundred and fourteen transcutaneous oxygen traces were obtained from 46 adults using a mass spectrometer. Such traces usually rise to a plateau about which they fluctuate. To estimate the plateau level, here called the asymptote, two models are described--a time-series model and a growth model. If yt is the trace ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1986.tb02453.x
更新日期:1986-08-01 00:00:00
abstract:BACKGROUND:We have previously proposed an equation derived from Fick's law and Lin's concept of effective blood concentration (EBC) to calculate the mixed venous blood concentration (MVBC) of isoflurane. Desflurane has a lower blood/air partition coefficient than isoflurane and, as such, promotes a faster induction and...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2006.00887.x
更新日期:2006-05-01 00:00:00
abstract::This study evaluated recovery after a fixed dose of midazolam as induction agent and the influence of flumazenil on recovery parameters in patients undergoing day-case surgery (arthroscopy of the knee). In 40 unpremedicated patients, anaesthesia was induced with midazolam 0.2 mg/kg, vecuronium bromide 0.1 mg/kg intrav...
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.tb02881.x
更新日期:1989-02-01 00:00:00
abstract::A new system for continuous measurement of oxygen uptake was tested. The tidal volumes delivered by the system, the accuracy of the oxygen sensor cell, measurement of the oxygen uptake at different inspired oxygen concentrations, and comparative tests of oxygen uptake using the Fick principle were studied. Judging fro...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1987.tb02511.x
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND:A decrease in lactate concentration over time during septic shock is associated with favourable outcomes. However, if this applies to hourly intervals during the initial time period in the ICU is unknown. The aim of this study was to investigate whether there is an early hourly reduction rate of lactate that...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13366
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Capnoperitoneum provides a ventilatory challenge due to reduction in end-expiratory lung volume and peritoneal carbon dioxide absorption in both children and adults. The primary aim of this controlled interventional trial was to determine the positive end-expiratory pressure (PEEP) level needed to ensure for...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13617
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:We have used hypothermia successfully in patients with acute respiratory failure after lung transplantation. However, we have observed that dopamine may cause a substantial decrease in mean arterial pressure (MAP) in hypothermic subjects. Furthermore, a dopamine-induced increase in pulmonary vascular resista...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1034/j.1399-6576.1999.430705.x
更新日期:1999-08-01 00:00:00
abstract:BACKGROUND:Post-operative sepsis considerably increases mortality, but the extent of pre-operative sepsis in hip fracture patients and its consequences are sparsely elucidated. The aim of this study was to assess the association between pre-operative sepsis and 30-day mortality after hip fracture surgery. METHODS:We c...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13160
更新日期:2018-10-01 00:00:00
abstract::Anesthesia and recovery during the first hour after propofol and methohexital anesthesia for termination of pregnancy, lasting about 12 min, were compared, the latter in a double-blind manner by means of psychomotor tests (coin counting and continuous auditory reaction time). Muscle movements and hiccups were seen sig...
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.1399-6576.1990.tb03072.x
更新日期:1990-04-01 00:00:00
abstract:BACKGROUND:The heart secretes natriuretic peptides (NPs) in response to myocardial stretch. Measuring NP concentrations is a helpful tool in guiding treatment. It has been suggested that sodium ion and hyperosmolality could affect NP excretion. If this is true, peri-operative NP measurements could be inconsistent when ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1399-6576.2009.01951.x
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Awareness is a rare complication in general anesthesia, but its consequences are stressful. Efforts must be undertaken to prevent, diagnose, and, if occurring, treat it. The incidence of awareness is higher following anesthesia involving the use of muscle relaxants. As a part of a quality assurance program a...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 临床试验,杂志文章
doi:10.1034/j.1399-6576.2002.460402.x
更新日期:2002-04-01 00:00:00
abstract::This randomized, double-blind and double-dummy study was carried out in order to compare the perioperative sedation after premedication with either brotizolam 0.25-0.50 mg sublingually or diazepam 5-10 mg orally. Sixty-two patients aged 18-60 years scheduled for minor gynaecological surgery in general anaesthesia were...
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.1399-6576.1992.tb03560.x
更新日期:1992-11-01 00:00:00
abstract::Fifty patients with chronic resistant cervicobrachialgia were randomly divided into two groups. Twenty-five patients (group A) were treated with cervical epidural steroid/lidocaine injections and 17 patients (group B) were treated with steroid/lidocaine injections into the posterior neck muscles. Another eight patient...
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.tb03765.x
更新日期:1993-08-01 00:00:00
abstract:BACKGROUND:Induction of mild hypothermia (MH) in patients resuscitated from cardiac arrest improves their outcome. However, benefits and risks of MH in patients who remain in cardiogenic shock after the return of spontaneous circulation (ROSC) are unclear. We analysed all cardiac arrest survivors who were treated with ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2007.01510.x
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:Increase in day surgery has challenged preoperative anaesthesia with need to identify a few high-risk patients requiring detailed preoperative intervention. We aimed to assess if a nurse-administered Preoperative Patient-centred Anaesthesia System (Pre-PAS) could identify high-risk patients, defined as ASA s...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/aas.13678
更新日期:2020-11-01 00:00:00
abstract:BACKGROUND:Increased sympathetic activity perioperatively and associated cardiovascular effects play a central role in cardiovascular complications. High thoracic epidural blockade attenuates the sympathetic response, but even with complete pain relief, haemodynamic and endocrine responses are still present. Beta-adren...
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.1399-6576.1997.tb04652.x
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Ropivacaine is a long-acting local anesthetic with low cardiac toxicity that induces vasoconstriction in vitro and in vivo. Vascular smooth muscle tone is regulated by changes in both intracellular Ca(2+) concentration ([Ca(2+)](i)) and myofilament Ca(2+) sensitivity. Therefore, the aim of this study was to ...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2007.01390.x
更新日期:2007-10-01 00:00:00
abstract::Focus-Assessed Transthoracic Echocardiography (FATE) is a point-of-care ultrasound protocol allowing the fast evaluation of the cardio-pulmonary status. It has been well established that patients with an exacerbation of chronic obstructive lung disease and lung oedema benefit from the sitting position. These and other...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2010.02330.x
更新日期:2011-01-01 00:00:00
abstract::Monocyte-mediated cytolysis and thymidine uptake in phytohaemagglutinin-stimulated lymphocytes during and after hip replacement performed under combined epidural- and general anaesthesia were studied using in vitro culture techniques. Monocyte-mediated cytolysis was unchanged during operation but was significantly red...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1984.tb02078.x
更新日期:1984-08-01 00:00:00
abstract:BACKGROUND:We prospectively evaluated direct analgesia-related costs of continuous sciatic nerve block using either a stimulating or conventional catheter after hallux valgus repair. METHODS:The perineural catheter was inserted through a stimulating introducer either blindly (group Conventional, n= 38) or while stimul...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2006.01101.x
更新日期:2006-11-01 00:00:00
abstract:BACKGROUND:Pressure measuring systems using fluid-filled catheters can result in the recording of distorted pressure waveforms. It results in phase delay, overestimation of systolic and, to a lesser extent, of diastolic pressure. We designed and evaluated a method to correct this pressure waveform distortion using an a...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.1998.tb05307.x
更新日期:1998-07-01 00:00:00
abstract:BACKGROUND:Research has shown that menstrual cycle phase may affect pain sensitivity. There is a lack of studies evaluating this effect on post-operative pain and analgesic needs. METHODS:In this prospective cohort study, we determined the effect of menstrual cycle phase on pain perception and analgesic requirements f...
journal_title:Acta anaesthesiologica Scandinavica
pub_type: 杂志文章
doi:10.1111/j.1399-6576.2012.02661.x
更新日期:2012-05-01 00:00:00