Abstract:
:The fatal/anesthetic ratio (FAR) in 44 swine weighing 32.6 +/- 0.7 kg (SEM) was determined. Fatal anesthetic concentration (the numerator for FAR) was defined as the end-tidal concentration at which the pig lived at least 10 min, during experiments that involved step increments in anesthetic concentrations. Previously reported MAC was used as the "anesthetic" concentration (denominator) to determine FAR. Halothane was compared to isoflurane and the question of whether major surgery might reduce FAR was investigated. The major surgery groups included one open chest group with each volatile anesthetic studied during coronary reserve measurements, and two groups that had LAD critical coronary stenoses. Thus volatile agents were compared with vs without major surgery, and with vs without a critical coronary stenosis. The FAR for isoflurane was approximately double that of halothane. Further, addition of major surgery did not produce significant deterioration in FAR with isoflurane. In contrast, with halothane there was a significant (approximately 20%) decrease in FAR, despite values already only half that seen with isoflurane, when major surgery was added. Presence of a critical coronary stenosis was not associated with a worsened FAR for isoflurane or halothane. It was concluded that the fatal/anesthetic ratio for isoflurane in pigs is 1.9 times greater than that for halothane. Addition of major surgery did not affect FAR when isoflurane was the anesthetic but did when halothane was used. Critical coronary stenosis did not worsen FAR. Because these results are nearly identical with those reported previously in small mammals, the doubled safety margin seen with isoflurane may have clinical relevance.
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Roberts SL,Gilbert M,Tinker JHsubject
Has Abstractpub_date
1987-06-01 00:00:00pages
485-91issue
6eissn
0003-2999issn
1526-7598journal_volume
66pub_type
杂志文章abstract:IMPLICATIONS:Tizanidine was given systemically to rats with experimental postoperative pain. Partial pain relief was obtained, but the effect was not clinically significant. Although systemic tizanidine is effective in relieving experimental neuropathic pain, it is not as effective for postoperative pain. ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200111000-00056
更新日期:2001-11-01 00:00:00
abstract::Epistaxis and airway trauma are often associated with nasotracheal intubation. We describe a patient with Factor IX deficiency who required nasotracheal intubation. An inexpensive, nonproprietary, rapid technique was used to reduce the trauma of intubation. ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000133914.26066.99
更新日期:2004-10-01 00:00:00
abstract::This study used the activated clotting time (ACT) to determine the clinical onset of four different doses of heparin after bolus injection into the central circulation. Ten consenting adults (Group A) undergoing coronary artery bypass grafting were given 350 U/kg of bovine lung heparin and had simultaneous duplicate a...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1097/00000539-200106000-00006
更新日期:2001-06-01 00:00:00
abstract::Heart transplant recipients are susceptible to a number of complications in the immediate postoperative period. Despite advances in surgical techniques, mechanical circulatory support (MCS), and immunosuppression, evidence supporting optimal management strategies of the critically ill transplant patient is lacking on ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0000000000004220
更新日期:2019-10-01 00:00:00
abstract::In Japan, an ever-present problem in the preoperative evaluation of patients with ischemic heart disease is that although such evaluations are based on Western data, these data serve as the basis for determining perioperative risk in Japanese patients. To remedy this problem, the Cardiac Ischemia and Anesthesia Resear...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000152009.49024.F1
更新日期:2005-05-01 00:00:00
abstract::Dr. Paul Janssen was the founder of Janssen Pharmaceutica and the developer of over 80 pharmaceutical compounds that proved useful in human, botanical, and veterinary medicine. He and his coworkers synthesized the fentanyl family of drugs, many other potent analgesics, droperidol, etomidate, and numerous other importa...
journal_title:Anesthesia and analgesia
pub_type: 传,历史文章,杂志文章
doi:10.1213/ane.0b013e3181605add
更新日期:2008-02-01 00:00:00
abstract:UNLABELLED:Previous reports indicate that cyclosporine increases sleeping time from barbiturate administration, and analgesia from fentanyl administration, suggesting a possible contribution of cyclosporine to anesthesia. Accordingly, we determined whether cyclosporine pretreatment decreases isoflurane MAC (the minimum...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200210000-00025
更新日期:2002-10-01 00:00:00
abstract:UNLABELLED:In a randomized trial, we compared topical anesthesia by a lidocaine-prilocaine cream (EMLA; Laboratorie ASTRA, Manterre, France) with subcutaneous local lidocaine infiltration for radial artery cannulation. Patients included 538 adults scheduled for coronary angiography using a radial approach. EMLA was app...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-199808000-00032
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:We have previously reported that hemorrhagic shock decreases the minimum alveolar anesthetic concentration (MAC) of isoflurane but minimally alters the electroencephalographic (EEG) effect. In this study, we investigated the influence of endotoxemia on the EEG effect and the MAC of isoflurane. METHODS:Eight...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181c22146
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Sigma (sigma)-receptor agonists attenuate brain injury after experimental focal cerebral ischemia in several species. We tested the hypothesis that the potent, prototypical sigma(1)-receptor agonist, 4-phenyl-1-(4-phenylbutyl) piperidine (PPBP), protects neurons by a mechanism involving the antiapoptotic pro...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000260267.71185.73
更新日期:2007-05-01 00:00:00
abstract:BACKGROUND:Modifications in physician billing patterns have been shown to occur in response to payer incentives, but the phenomenon remains largely unexplored in billing for anesthesia services. Within the field of anesthesiology, Medicare's policy not to provide additional reimbursement for higher ASA physical status ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000917
更新日期:2016-01-01 00:00:00
abstract:UNLABELLED:Bleeding after cardiopulmonary bypass (CPB) is related to multiple factors. Excess protamine weakens clot structure and decreases platelet function; therefore, an increased activated clotting time (ACT) after protamine reversal of heparin may be misinterpreted as residual heparin anticoagulation. We evaluate...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199810000-00008
更新日期:1998-10-01 00:00:00
abstract::The purpose of this article is to provide a summary of the Enhanced Recovery After Cesarean delivery (ERAC) protocol written by a Society for Obstetric Anesthesia and Perinatology (SOAP) committee and approved by the SOAP Board of Directors in May 2019. The goal of the consensus statement is to provide both practical ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000005257
更新日期:2020-11-03 00:00:00
abstract::Alfentanil causes cardiac stimulation or depression in intact animals and in clinical practice; there is no information concerning its direct effects on the heart. Therefore, we studied the effects of alfentanil on isolated cardiac tissues from young adult rabbits. The right atrium with sinoatrial node (SA node) was b...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199009000-00009
更新日期:1990-09-01 00:00:00
abstract:BACKGROUND:District-level hospitals (DLHs) are the main providers of surgical services for rural populations in Sub-Saharan Africa (SSA). Skilled teams are essential for surgical care, and gaps in anesthesia impact negatively on surgical capacity and outcomes. This study, from a baseline of a project scaling-up access ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000004363
更新日期:2020-04-01 00:00:00
abstract:UNLABELLED:The isolated effects of hypothermia on hemostasis have not been investigated in healthy humans. We cooled 16 anesthetized patients scheduled for elective intracranial surgery to 32 degrees C body core temperature and assessed prothrombin time (PT), activated partial thromboplastin time, thrombelastogram (TEG...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/01.ane.0000062520.65192.c9
更新日期:2003-06-01 00:00:00
abstract:UNLABELLED:Because succinylcholine has obvious advantages for facilitating endotracheal intubation in the ambulatory setting (e.g., low cost, fast onset, and no need for reversal of neuromuscular block), it is important to determine whether this muscle relaxant is indeed associated with an increased incidence of postop...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-200008000-00015
更新日期:2000-08-01 00:00:00
abstract:UNLABELLED:The adenosine triphosphate (ATP)-sensitive potassium channels (K(+)-ATP channels) are activated by decreases in intracellular ATP and help to match blood flow to tissue needs. Such metabolism-flow coupling occurs predominantly in the smallest arterioles measuring 50 microm or less in diameter. Previous studi...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200007000-00015
更新日期:2000-07-01 00:00:00
abstract::Spontaneous ventilation may offer advantages over controlled mechanical ventilation (CMV), but increase in work of breathing may diminish its usefulness. During general anesthesia, respiratory depression and increased work of breathing often preclude spontaneous ventilation, and patients then receive CMV. We compared ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199208000-00003
更新日期:1992-08-01 00:00:00
abstract:UNLABELLED:In adult patients, the creation of pneumoperitoneum (PP) by means of carbon dioxide (CO(2)) insufflation leads to an increase in cerebral blood flow velocity (CBFV), which is thought to be caused by hypercapnia. We evaluated whether PP leads to an increase of CBFV in children, and whether this increase is di...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200202000-00005
更新日期:2002-02-01 00:00:00
abstract::Nitrous oxide increases peripheral vascular tone in animals and humans and constricts epicardial coronary arteries in dogs. Current studies sought both to determine whether nitrous oxide caused epicardial coronary artery constriction in a second animal species, pigs, and to investigate mechanisms. Left anterior descen...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199308000-00005
更新日期:1993-08-01 00:00:00
abstract::Endocardial motion and surface/volume changes during the cardiac cycle are echocardiographic methods for regional (analysis of wall motion) and global (fractional area change, stroke volume, and ejection fraction) evaluation of cardiac function. These conventional methods can be subjective, and/or time consuming and, ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ane.0b013e31818a6c4c
更新日期:2009-01-01 00:00:00
abstract:UNLABELLED:The effects of intravascular volume replacement regimens on tissue oxygen tension (ptiO(2)) are not definitely known. Forty-two consecutive patients scheduled for elective major abdominal surgery were prospectively randomized to receive either 6% hydroxyethyl starch (HES) (mean molecular weight 130 kd, degre...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验,收录出版
doi:10.1097/00000539-200108000-00034
更新日期:2001-08-01 00:00:00
abstract::The effects of narcotic agents and two inhalation anesthetics on intrabiliary pressure (IBP) were measured before and after morphine (0.2 mg/kg), meperidine (2 mg/kg), fentanyl (0.002 mg/kg), or pentazocine (1 mg/kg) given intramuscularly to guinea pigs, and after halothane (0.5, 1.0, 1.5, or 2.0 MAC) or enflurane (sa...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1979-03-01 00:00:00
abstract::The purpose of this study was to determine if the addition of sufentanil would improve the quality of analgesia obtained with 0.125% epidural bupivacaine infusions given to women in active labor. Forty healthy laboring women were randomly assigned to two equal groups. Group 1 had epidural analgesia instituted with the...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1988-05-01 00:00:00
abstract::The effects of thoracic epidural anesthesia on the performance of the parasternal intercostal muscles were investigated by measuring electromyographic activity and length changes of the parasternals (EMG activities and length, respectively, of the parasternals) in seven pentobarbital anesthetized, spontaneously breath...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199309000-00013
更新日期:1993-09-01 00:00:00
abstract:BACKGROUND:Although music is frequently used to promote a relaxing environment during labor and delivery, the effect of its use during the placement of neuraxial techniques is unknown. Our study sought to determine the effects of music use on laboring parturients during epidural catheter placement, with the hypothesis ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0000000000001656
更新日期:2017-02-01 00:00:00
abstract:UNLABELLED:The aim of this study was to investigate modern and classical electroencephalographic (EEG) variables in response to remifentanil and propofol infusions. We hypothesized that modern EEG variables may indicate the effects of propofol but not of remifentanil. Twenty-five patients were included in the study aft...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1097/00000539-200211000-00042
更新日期:2002-11-01 00:00:00
abstract:BACKGROUND:High-quality shared decision-making for patients undergoing elective surgical procedures includes eliciting patient goals and treatment preferences. This is particularly important, should complications occur and life-sustaining therapies be considered. Our objective was to determine the preoperative care pre...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000004617
更新日期:2021-01-01 00:00:00
abstract::One approach to elucidating the general anesthetic target has used genetic selection procedures, wherein animals are bred for sensitivity or resistance to general anesthetics and correlations are sought with a specific neuronal structural or functional defect. For example, murine strains have been developed that are e...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199376060-00022
更新日期:1993-06-01 00:00:00