Abstract:
:The correlation between the potency of inhaled anesthetics and their solubility in a hydrophobic phase provides an opportunity to define better the characteristics of the anesthetic site of action. The correlation implies that inhaled anesthetics act in a hydrophobic site and that the solvent used has properties representative of the true site of anesthetic action. We sought to characterize this site more accurately by testing for the solvent that provided the best correlation for a diverse group of anesthetics. We determined the solubility of halothane, enflurane, cyclopropane, fluroxene, isoflurane, sevoflurane, and desflurane in benzene, olive oil, Intralipid, n-octanol, and lecithin. We used established MAC values for rats, dogs, and humans for all but sevoflurane and desflurane, for which we determined MAC in rats to be 2.80% +/- 0.24% (mean +/- standard deviation) and 7.71% +/- 0.65%, respectively. Lecithin gave the lowest coefficient of variation for the product of potency (MAC) x solubility, but the difference was statistically significant only for a comparison of the products for lecithin and olive oil. The values for lecithin were within the range of values produced by biological variation. More important, the correlation of log MAC and log solubility had an average slope of unity (-1.04 +/- 0.07) for lecithin, but a slope differing from unity for benzene (-0.82 +/- 0.05) and olive oil (-0.87 +/- 0.05). We conclude that lecithin is probably more representative of the site of action of these anesthetics than the other solvents.
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Taheri S,Halsey MJ,Liu J,Eger EI 2nd,Koblin DD,Laster MJdoi
10.1213/00000539-199105000-00010subject
Has Abstractpub_date
1991-05-01 00:00:00pages
627-34issue
5eissn
0003-2999issn
1526-7598journal_volume
72pub_type
杂志文章abstract::Morphine plasma concentrations were determined in six patients receiving kidney transplants from living-related donors, and nine patients receiving kidney transplants from cadavers. The total cold ischemic time was about 2 hr for kidneys from living-related donors and 14 hr for those from cadavers. After an intravenou...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1985-11-01 00:00:00
abstract:UNLABELLED:We conducted this retrospective study to document the efficacy and safety, and demonstrate the spectrum of indications for subcutaneously tunneled epidural catheters in the management of prolonged pain in pediatric patients. The charts of 25 patients with prolonged pain that was unresponsive to conventional ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200106000-00016
更新日期:2001-06-01 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:UNLABELLED:With the development of new computer-assisted target-controlled infusion (TCI) systems and the availability of short-acting anesthetics, total IV anesthesia (TIVA) has become increasingly popular. The aim of this study was to compare costs of TCI-based anesthesia with two standard anesthesia regimens. Sixty ...
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:10.1097/00000539-199901000-00015
更新日期:1999-01-01 00:00:00
abstract::One of the most important physical properties affecting the level of analgesia achieved after intrathecal administration of a local anesthetic is its density relative to the density of the cerebrospinal fluid (CSF) at 37 degrees C. In this study, density, specific gravity, and baricity of local anesthetic solutions at...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199305000-00018
更新日期:1993-05-01 00:00:00
abstract:UNLABELLED:We studied the effect of fluvoxamine and erythromycin on the pharmacokinetics of ropivacaine in a double-blinded, randomized, four-way cross-over study. Eight healthy volunteers ingested daily 1500 mg erythromycin for 6 days, 100 mg fluvoxamine for 5 days (Days 2-6), both erythromycin and fluvoxamine, or pla...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-200011000-00030
更新日期:2000-11-01 00:00:00
abstract:UNLABELLED:One thousand questionnaires concerning the techniques and complications of intravenous regional anesthesia (IVRA) were sent to 900 American and 100 Canadian anesthesiologists. Of the 321 respondents, 86% perform IVRA regularly. A wide variation in device-related and clinical aspects was found, ranging from a...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199710000-00027
更新日期:1997-10-01 00:00:00
abstract::To assess the evolution of satisfactory neohepatic graft function or failure, hemodynamic variables, along with data for oxygen delivery and utilization, were analyzed retrospectively in 99 patients undergoing orthotopic liver transplantation. Caval cross-clamping without venovenous bypass initiated a series of hemody...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199303000-00022
更新日期:1993-03-01 00:00:00
abstract::Epidural anesthesia may be performed as a single injection or by staged doses. Thirty patients undergoing primary total hip replacement were randomly assigned to have epidural anesthesia using a single injection or a staged technique with 25 mL of 0.75% bupivacaine. Arterial plasma bupivacaine concentrations were sign...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1213/00000539-199408000-00019
更新日期:1994-08-01 00:00:00
abstract::Elevated serum ammonia may play a role in central nervous system derangement after transurethral resection of the prostate. Glycine used as a surgical irrigant for prostate resection produces ammonia as a by-product after liver and renal metabolism. The presence of liver dysfunction often leads to an inability to remo...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1989-12-01 00:00:00
abstract::Despite the exhaustive search for an acceptable substitute to erythrocyte transfusion, neither chemical-based products such as perfluorocarbons nor hemoglobin-based oxygen carriers have succeeded in providing a reasonable alternative to allogeneic blood transfusion. However, there remain scenarios in which blood trans...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0000000000003957
更新日期:2021-01-01 00:00:00
abstract:BACKGROUND:In this pilot study, we hypothesized that velocity parameters obtained from changes in clot amplitude (A) and clot elasticity (E) measured with thromboelastometry (ROTEM, Tem International GmbH, Munich, Germany) could improve detection of fibrinolysis in whole blood obtained from children undergoing surgery ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000795
更新日期:2015-08-01 00:00:00
abstract:BACKGROUND:Previous studies show that the potent, prototypical sigma(1)-receptor agonist 4-phenyl-1-(4-phenylbutyl) piperidine (PPBP) prevents cell death after oxygen-glucose deprivation (OGD) in primary cortical neuronal cultures. We tested the hypothesis that PPBP protects neurons by a mechanism involving activation ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e318192442c
更新日期:2009-03-01 00:00:00
abstract:UNLABELLED:Epidural catheters (EC) are often used in pediatric patients for intraoperative and postoperative pain relief. The small anatomical structures and catheter insertion under general anesthesia make it more difficult to perform EC and to prevent damage. In this study we investigated the use of ultrasound (US) i...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000156579.11254.D1
更新日期:2005-08-01 00:00:00
abstract:BACKGROUND:In this study, we sought to determine whether a simplified ultrasound measurement of the largest transverse diameter, using a standard ultrasound machine, could be used to diagnose postoperative urinary retention (POUR). This method may replace expensive bladder volume measuring devices or a more complex ult...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/ANE.0000000000000595
更新日期:2015-05-01 00:00:00
abstract:UNLABELLED:The aim of this study was to examine the antiallodynic and antinociceptive effects of subcutaneously administered physostigmine (50, 100, 200 micrograms/kg), compared with morphine (2.5, 5, 10 mg/kg) and NaCl after spinal nerve ligation in rats. The following stimuli were used: acetone (cold allodynia), von ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199908000-00033
更新日期:1999-08-01 00:00:00
abstract:INTRODUCTION:The mechanisms by which mechanical ventilation (MV) can injure remote organs, such as the kidney, remain poorly understood. We hypothesized that upregulation of systemic inflammation, as reflected by plasma interleukin-6 (IL-6) levels, in response to a lung-injurious ventilatory strategy, ultimately result...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e31818067a2
更新日期:2008-10-01 00:00:00
abstract::Fifteen critically ill patients with acute respiratory failure were ventilated with high-frequency jet ventilation (HFJV; frequency 100 breaths/min; I/E ratio 0.43; 1.8-mm internal diameter injector cannula). The patients were divided into two groups according to their initial PaO2 during intermittent positive pressur...
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:1984-01-01 00:00:00
abstract::The effects of continuous epidural anesthesia and of general anesthesia on the incidence of thromboembolism following total hip replacement were studied. Sixty patients were randomly allotted to one of two groups receiving either epidural or general anesthesia. Epidural anesthesia (N = 30) consisted of 0.5% bupivacain...
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:1983-02-01 00:00:00
abstract:BACKGROUND:We determined the sensitivity of motor responses evoked by stimulating catheters in determining catheter-nerve contact using ultrasonography as reference. METHODS:Femoral nerves were contacted using stimulating catheters under ultrasonography scanning in 25 patients. The output current was increased from it...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e31822c9887
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:The inflated costs and documented deleterious effects of excess perioperative transfusion have led to the investigation of targeted coagulation factor replacement strategies. One particular coagulation factor of interest is factor I (fibrinogen). Hypofibrinogenemia is typically tested for using time-consumin...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/ANE.0000000000001465
更新日期:2016-09-01 00:00:00
abstract::Cimetidine blunts the increase in cerebral blood flow (CBF) normally observed during hypoxia. It is important, therefore, to know whether other H2-blockers also affect the cerebral circulation adaptation to hypoxia. Cerebral blood flow was measured in 24 awake dogs after an intravenous injection of either saline (cont...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199104000-00020
更新日期:1991-04-01 00:00:00
abstract::We present a case of extreme hemodilution in which appropriately crossmatched blood was not available. A 53-year-old man was admitted to our hospital because of hemorrhagic shock due to multiple stab wounds. His blood type was B, Rh negative, and his intravascular fluid volume was maintained with balanced salt solutio...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181e668b8
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Isoflurane activates vascular adenosine triphosphate sensitive potassium (K(ATP)) channels, and may induce vasodilation. In the present study, we investigated whether hyperglycemia modifies isoflurane activation of vascular K(ATP) channel. METHODS:We used a cell-attached patch-clamp configuration to test th...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e318163fd5b
更新日期:2008-03-01 00:00:00
abstract::The effects of nitrous oxide-oxygen plus small doses of fentanyl with (N = 7) and without (N = 15) naloxone and the effects of nitrous oxide-oxygen plus halothane (N = 13) on plasma concentration of arginine vasopressin (AVP) and cortisol were studied in normal patients before and during gynecologic laparotomies. Pati...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND:Implementation of initiatives to increase anesthesia group productivity depends not just on anesthesia groups, but on operating room (OR) nursing administration. OR nursing directors may encourage organizational change based on the needs of their hospitals and nurses. These changes may differ from those that...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e31818874a8
更新日期:2008-12-01 00:00:00
abstract::We studied 60 nonophthalmologic patients, allocated to six treatment groups, to assess the effects of atracurium and vecuronium on intraocular pressure (IOP). All patients had IOP measured while awake, using pneumotonometry. In group 1, anesthesia was induced with thiopental, 5 mg/kg, and maintained with N2O, 70% in O...
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:1986-08-01 00:00:00
abstract:BACKGROUND:In this study, we compared the effect of light sedation with remifentanil versus propofol on intracranial (ICP) and cerebral perfusion pressure (CPP) of patients undergoing stereotactic brain tumor biopsy under regional anesthesia. METHODS:This was a prospective, open-label, randomized, and controlled study...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ane.0b013e3181a3ea3a
更新日期:2009-07-01 00:00:00
abstract::We built and tested a combined proportional/derivative and minimum variance adaptive control algorithm for the regulation of blood pressure using sodium nitroprusside (SNP). In ten dogs the pressure was reduced by 30 mm Hg for 1 hr. The blood pressure came to within 5 mm Hg of the desired pressure in 1.7 +/- 4 min and...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract::A combination of pancuronium and d-tubocurarine is associated with potentiation of the neuromuscular blocking effects of each drug used singly. The time to onset of maximum block and the time to 25% recovery after administration of equipotent (ED95) doses of pancuronium (0.07 mg/kg) alone, d-tubocurarine (0.51 mg/kg) ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1984-04-01 00:00:00