Multiport epidural catheters: does the air test work?

abstract：:Systolic pressure variation (SPV) is defined as the difference between the maximum and minimum values of systolic blood pressure following a single positive pressure breath. An increase in the SPV is known to occur clinically during hypovolemia. This study aims to quantify SPV during graded hemorrhage in ventilated do...

journal_title：Anesthesiology

authors： Perel A,Pizov R,Cotev S

更新日期：1987-10-01 00:00:00

abstract：BACKGROUND:Propofol and isoflurane anesthesia were studied previously with functional brain imaging in humans to begin identifying key brain areas involved with mediating anesthetic-induced unconsciousness. The authors describe an additional positron emission tomography study of halothane's in vivo cerebral metabolic e...

journal_title：Anesthesiology

authors： Alkire MT,Pomfrett CJ,Haier RJ,Gianzero MV,Chan CM,Jacobsen BP,Fallon JH

更新日期：1999-03-01 00:00:00

abstract：BACKGROUND:Systemic magnesium has been used to minimize postoperative pain with conflicting results by clinical studies. It remains unknown whether the administration of perioperative systemic magnesium can minimize postoperative pain. The objective of the current investigation was to evaluate the effect of systemic ma...

journal_title：Anesthesiology

authors： De Oliveira GS Jr,Castro-Alves LJ,Khan JH,McCarthy RJ

更新日期：2013-07-01 00:00:00

abstract：BACKGROUND:During emergence from anesthesia, breathing 100% oxygen is frequently used to provide a safety margin toward hypoxemia in case an airway problem occurs. Oxygen breathing has been shown to cause pulmonary gas exchange disorders in healthy individuals. This study investigates how oxygen breathing during emerge...

journal_title：Anesthesiology

authors： Kleinsasser AT,Pircher I,Truebsbach S,Knotzer H,Loeckinger A,Treml B

更新日期：2014-05-01 00:00:00

abstract：BACKGROUND:Preanesthesia medical examination is a common procedure performed before ophthalmic surgery. The frequency and characteristics of new medical issues and unstable medical conditions revealed by ophthalmic preanesthesia medical examination are unknown. We conducted a prospective observational study to estimate...

journal_title：Anesthesiology

authors： Phillips MB,Bendel RE,Crook JE,Diehl NN

更新日期：2013-05-01 00:00:00

abstract：BACKGROUND:Previous studies demonstrated that both edrophonium and neostigmine affect mivacurium's pharmacokinetics, thereby potentially affecting its recovery profile. However, those studies were not clinically relevant because mivacurium was still infused after the antagonists were given. In the present study, the au...

journal_title：Anesthesiology

authors： Szenohradszky J,Fogarty D,Kirkegaard-Nielsen H,Brown R,Sharma ML,Fisher DM

更新日期：2000-03-01 00:00:00

abstract：BACKGROUND:Recent studies suggest that volatile anesthetics cause not only vasodilation but also vasoconstriction, depending on the experimental conditions. However, the mechanism of the constrictive effect of volatile anesthetics has not been clarified. The aim of this study was to evaluate the vasoconstrictor effects...

journal_title：Anesthesiology

authors： Kakuyama M,Hatano Y,Nakamura K,Toda H,Terasako K,Nishiwada M,Mori K

更新日期：1994-05-01 00:00:00

abstract：BACKGROUND:Propofol (2,6-diisopropylphenol) is one of the most frequently used anesthetic agents. One of the main side effects of propofol is to reduce blood pressure, which is thought to occur by inhibiting the release of catecholamines from sympathetic neurons. Here, the authors hypothesized that propofol-induced hyp...

journal_title：Anesthesiology

authors： Han L,Fuqua S,Li Q,Zhu L,Hao X,Li A,Gupta S,Sandhu R,Lonart G,Sugita S

更新日期：2016-04-01 00:00:00

abstract：:Clonidine, an alpha 2-adrenergic agonist, can potentiate opioid-induced analgesia. In a double-blind placebo-controlled study in human volunteers, we sought to determine whether clonidine also potentiates opioid-induced respiratory depression. Hypercapnic ventilatory responses (minute ventilation, mean inspiratory flo...

journal_title：Anesthesiology

authors： Jarvis DA,Duncan SR,Segal IS,Maze M

更新日期：1992-06-01 00:00:00

abstract：BACKGROUND:Work suggests the amnesia from dexmedetomidine (an α2-adrenergic agonist) is caused by a failure of information to be encoded into long-term memory and that dexmedetomidine might differentially affect memory for emotionally arousing material. We investigated these issues in humans using event-related neuroim...

journal_title：Anesthesiology

authors： Hayama HR,Drumheller KM,Mastromonaco M,Reist C,Cahill LF,Alkire MT

更新日期：2012-11-01 00:00:00

abstract：BACKGROUND:Nitrous oxide limits intraoperative hypothermia because the vasoconstriction threshold with nitrous oxide is higher than with equi-minimum alveolar concentrations of sevoflurane or isoflurane, presumably because of its stimulating actions on the sympathetic nervous system. Xenon, in contrast, does not cause ...

journal_title：Anesthesiology

authors： Goto T,Matsukawa T,Sessler DI,Uezono S,Ishiguro Y,Ozaki M,Morita S

更新日期：1999-09-01 00:00:00

abstract：:This study examined the interaction between thiopental and epinephrine in inducing ventricular arrhythmias in dogs. The arrhythmogenic threshold of epinephrine was determined during anesthesia with either halothane alone, thiopental alone, etomidate plus different doses of thiopental, or halothane plus different doses...

journal_title：Anesthesiology

authors： Hayashi Y,Sumikawa K,Yamatodani A,Tashiro C,Wada H,Yoshiya I

更新日期：1989-12-01 00:00:00

abstract：BACKGROUND:The lightwand may be useful as an alternative for tracheal intubation during a rapid-sequence induction of anesthesia in the presence of a full stomach. This study was undertaken to assess the effect of application of cricoid pressure on the success of lightwand intubation. METHODS:Sixty adult female patien...

journal_title：Anesthesiology

authors： Hodgson RE,Gopalan PD,Burrows RC,Zuma K

更新日期：2001-02-01 00:00:00

abstract：:A potentially serious complication of long-term epidural catheterization in cancer patients is infection. The early signs of infection were studied in 350 patients in whom long-term epidural catheters were inserted. Three areas of the catheter track were found to be involved; exit site and superficial catheter track i...

journal_title：Anesthesiology

authors： Du Pen SL,Peterson DG,Williams A,Bogosian AJ

更新日期：1990-11-01 00:00:00

abstract：BACKGROUND:Cardiac preconditioning, including that induced by halogenated anesthetics, is an innate protective mechanism against ischemia-reperfusion injury. The adenosine triphosphate-sensitive potassium (K(ATP)) channels are considered essential in preconditioning mechanism. However, it is unclear whether K(ATP) chan...

journal_title：Anesthesiology

authors： Marinovic J,Bosnjak ZJ,Stadnicka A

更新日期：2006-07-01 00:00:00

abstract：BACKGROUND:We evaluated whether spectral entropy (SpE) can measure the depth of hypnosis and the hypnotic drug effect in children during total intravenous anesthesia. METHODS:Sixty healthy children, aged 3-16 yr, were studied. Anesthesia was induced with an increasing target controlled infusion of propofol, and mainta...

journal_title：Anesthesiology

authors： Klockars JG,Hiller A,Münte S,van Gils MJ,Taivainen T

更新日期：2012-02-01 00:00:00

abstract：BACKGROUND:Vascular spasm is a well-known complication during vascular surgery. Topical lidocaine is frequently used to prevent this spasm. However, the effects of lidocaine on the endothelium-dependent antiaggregation are not clear. METHODS:The aggregation of platelet-rich plasma (PRP) obtained from healthy volunteer...

journal_title：Anesthesiology

authors： Az-ma T,Hardian,Yuge O

更新日期：1995-08-01 00:00:00

abstract：BACKGROUND:Victims of organophosphate intoxication with cholinergic crisis may have need for sedation and anesthesia, but little is known about how anesthetics work in these patients. Recent studies suggest that cholinergic stimulation impairs gamma-aminobutyric acid type A (GABAA) receptor function. Because GABAA rece...

journal_title：Anesthesiology

authors： Grasshoff C,Drexler B,Hentschke H,Thiermann H,Antkowiak B

更新日期：2007-06-01 00:00:00

abstract：BACKGROUND:Sweating, vasoconstriction, and shivering have been observed during general anesthesia. Among these, vasoconstriction is especially important because-once triggered-it minimizes further hypothermia. Surprisingly, the core-temperature plateau associated with vasoconstriction appears to preserve core temperatu...

journal_title：Anesthesiology

authors： Plattner O,Semsroth M,Sessler DI,Papousek A,Klasen C,Wagner O

更新日期：1997-04-01 00:00:00

abstract：BACKGROUND:: Recent population studies have suggested that children with multiple exposures to anesthesia and surgery at an early age are at an increased risk of cognitive impairment. The authors therefore have established an animal model with single versus multiple exposures of anesthetic(s) in young versus adult mice...

journal_title：Anesthesiology

authors： Shen X,Dong Y,Xu Z,Wang H,Miao C,Soriano SG,Sun D,Baxter MG,Zhang Y,Xie Z

更新日期：2013-03-01 00:00:00

abstract：BACKGROUND:This study investigated the ability of the modified continual reassessment method (MCRM) to determine the maximum tolerated dose of the opioid antagonist nalmefene, which does not reverse analgesia in an acceptable number of postoperative patients receiving epidural fentanyl in 0.075% bupivacaine. METHODS:I...

journal_title：Anesthesiology

authors： Dougherty TB,Porche VH,Thall PF

更新日期：2000-04-01 00:00:00

abstract：BACKGROUND:Povidone iodine (PI) solution is used commonly for skin disinfection before epidural and spinal anesthesia. Although there have been reports indicating the presence of microbial contaminants in PI solution, none have evaluated the prevalence of PI contamination. The aims of this study were to assess the freq...

journal_title：Anesthesiology

authors： Birnbach DJ,Stein DJ,Murray O,Thys DM,Sordillo EM

更新日期：1998-03-01 00:00:00

abstract：:A carcinogen bioassay of enflurane was performed in Swiss/ICR mice. Two groups of weanling mice, each of 125 males and 125 females, were exposed to eigher a maximum tolerated dose of enflurane, 3000 ppm (0.3 per cent v/v) or compressed air for 4 hs per day, 5 days per week. After 52 weeks exposure, 25 males and 25 fem...

journal_title：Anesthesiology

authors： Baden JM,Egbert B,Mazze RI

更新日期：1982-01-01 00:00:00

abstract：BACKGROUND:The discrepancy between predicted effect-site concentration and measured bispectral index is problematic during intravenous anesthesia with target-controlled infusion of propofol and remifentanil. We hypothesized that bispectral index during total intravenous anesthesia would be more accurately predicted by ...

journal_title：Anesthesiology

authors： Lee HC,Ryu HG,Chung EJ,Jung CW

更新日期：2018-03-01 00:00:00

abstract：:The ability of contrast echocardiography to assess regional myocardial perfusion during cardiopulmonary bypass in a dog model for coronary artery bypass surgery was evaluated. Sonicated Renograffin-76 microbubbles (meglumin diatrigoate and sodium diatrigoate) were injected into an aortic root proximal to an aortic occ...

journal_title：Anesthesiology

authors： Aronson S,Bender E,Feinstein SB,Heidenreich PH,Ellis J,Dick C,Roizen MF,Karp RB

更新日期：1990-02-01 00:00:00

abstract：BACKGROUND:In 2001, the Centers for Medicare and Medicaid Services issued a rule allowing U.S. states to "opt out" of the regulations requiring physician supervision of nurse anesthetists in an effort to increase access to anesthesia care. Whether "opt out" has successfully achieved this goal remains unknown. METHODS:...

journal_title：Anesthesiology

authors： Sun EC,Dexter F,Miller TR,Baker LC

更新日期：2017-03-01 00:00:00

abstract：BACKGROUND:Etomidate is a sedative hypnotic that is often used in critically ill patients because it provides superior hemodynamic stability. However, it also binds with high affinity to 11beta-hydroxylase, potently suppressing the synthesis of steroids by the adrenal gland that are necessary for survival. The authors ...

journal_title：Anesthesiology

authors： Cotten JF,Forman SA,Laha JK,Cuny GD,Husain SS,Miller KW,Nguyen HH,Kelly EW,Stewart D,Liu A,Raines DE

更新日期：2010-03-01 00:00:00

abstract：BACKGROUND:The goal of this study was to identify interventions that anesthesiologists can make to decrease total costs of a postanesthesia care unit (PACU). METHODS:Data were collected retrospectively from patients who underwent ambulatory surgery at our tertiary care center. RESULTS:Supplies and medications account...

journal_title：Anesthesiology

authors： Dexter F,Tinker JH

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND:The dose-response relation for spinal ropivacaine is undetermined, and there are few data available for obstetric patients. METHODS:In a prospective, randomized, double-blind investigation, the authors studied 72 patients undergoing elective cesarean delivery. An epidural catheter was placed at the L2-L3 ve...

journal_title：Anesthesiology

authors： Khaw KS,Ngan Kee WD,Wong EL,Liu JY,Chung R

更新日期：2001-12-01 00:00:00

abstract：BACKGROUND:There is substantial and growing literature on the actions of general anesthetics on a variety of neurotransmitter-gated ion channels, with the greatest attention being focused on inhibitory gamma-amino butyric acid type A receptors. In contrast, glutamate receptors, the most important class of fast excitato...

journal_title：Anesthesiology

authors： Plested AJ,Wildman SS,Lieb WR,Franks NP

更新日期：2004-02-01 00:00:00