Psychedelic effects of ketamine in healthy volunteers: relationship to steady-state plasma concentrations.

abstract：:The goal of this randomized study of high-risk surgical patients was to determine whether intraoperative thoracic epidural anesthesia in combination with light general anesthesia alters postoperative morbidity when compared to a standard technique of "balanced" general anesthesia. A total of 173 patients scheduled for...

journal_title：Anesthesiology

authors： Baron JF,Bertrand M,Barré E,Godet G,Mundler O,Coriat P,Viars P

更新日期：1991-10-01 00:00:00

abstract：BACKGROUND:The authors determined the segmental effects of intracarotid verapamil in human subjects by using a novel method of measuring proximal and distal cerebrovascular resistance. Their hypothesis was that intracarotid verapamil, a calcium channel-blocking drug that augments cerebral blood flow and reverses arteri...

journal_title：Anesthesiology

authors： Joshi S,Meyers PM,Pile-Spellman J,Wang M,Sahlein DH

更新日期：2004-04-01 00:00:00

abstract：:To determine the percentage of anesthetic metabolized and to assess the role of metabolism in the total elimination of inhaled anesthetics, the authors administered isoflurane, enflurane, halothane, and methoxyflurane simultaneously, for 2 h, to nine healthy patients. Total anesthetic uptake during the 2 h of washin a...

journal_title：Anesthesiology

authors： Carpenter RL,Eger EI 2nd,Johnson BH,Unadkat JD,Sheiner LB

更新日期：1986-08-01 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:Epidural morphine yields postoperative pain relief and hemodynamic stability. However, the effects of epidural morphine on sympathetic tone are unclear. This study was designed to elucidate the effects of epidural morphine on cardiac (CSNA) and renal (RSNA) sympathetic nerve activity by direct measurement in...

journal_title：Anesthesiology

authors： Mori T,Nishikawa K,Terai T,Yukioka H,Asada A

更新日期：1998-06-01 00:00:00

abstract：BACKGROUND:The diagnosis of acute life-threatening allergic reactions during anesthesia relies on clinical signs, histamine and/or tryptase measurements, and allergic testing. In patients who die after the reaction, skin tests cannot be performed, and the effect of resuscitation manoeuvres on mediator concentrations is...

journal_title：Anesthesiology

authors： Laroche D,Gomis P,Gallimidi E,Malinovsky JM,Mertes PM

更新日期：2014-08-01 00:00:00

abstract：:The cardiovascular effects of halothane-nitrous oxide anesthesia, and beta-receptor blockade with either propranolol or practolol, were studied in 15 dogs in which severe myocardial infarction had been induced ten days earlier. The hemodynamic responses to blood loss amounting to 25 per cent of estimated blood volume,...

journal_title：Anesthesiology

authors： Prys-Roberts C,Roberts JG,Foëx P,Clarke TN,Bennett MJ,Ryder WA

更新日期：1976-09-01 00:00:00

abstract：:Using the technique of ventriculocisternal perfusion, resistance to reabsorption of cerebrospinal fluid (Ra) was calculated from determinations of the rate of reabsorption of cerebrospinal fluid (Va) at differing cerebrospinal fluid pressures in dogs. Ra was examined during prolonged anesthesia (5.0-6.0 h) with enflur...

journal_title：Anesthesiology

authors： Artru AA

更新日期：1984-11-01 00:00:00

abstract：:The effect of halothane, at clinically relevant concentrations on the ability of human polymorphonuclear leukocytes (PMNL) to kill the most frequently isolated gram-negative organisms responsible for human bacteremias, Escherichia coli and Klebsiella pneumoniae, was studied. Exposure of PMNL to 0.75 per cent halothane...

journal_title：Anesthesiology

authors： Welch WD

更新日期：1981-12-01 00:00:00

abstract：:The hemodynamic effects of prolonged mechanical ventilation with positive end-expiratory pressure (PEEP), with and without blood volume augmentation, were studied in 18 beagles anesthetized with halothane (0.7 per cent end-tidal). Addition of 12 cm H2O PEEP during mechanical ventilation in normavolemic dogs was associ...

journal_title：Anesthesiology

authors： Qvist J,Pontoppidan H,Wilson RS,Lowenstein E,Laver MB

更新日期：1975-01-01 00:00:00

abstract：:Substance abuse is a major socioeconomic problem. However, the ready availability of potent narcotic and sedative drugs probably constitutes a unique risk for anesthesiologists. Until recently, few anesthesia departments were prepared to recognize or safely manage afflicted colleagues. Because we felt it important to ...

journal_title：Anesthesiology

authors： Lecky JH,Aukburg SJ,Conahan TJ 3rd,Geer RT,Ominsky AJ,Gross J,Muravchick S,Wollman H

更新日期：1986-10-01 00:00:00

abstract：:Despite evidence from animal experiments to the contrary, nitrous oxide (N2O) reportedly does not induce myocardial ischemia when used as an adjunct to fentanyl anesthesia in patients with coronary artery disease who have well-preserved left ventricular (LV) function. However, the incidence of ischemia with N2O admini...

journal_title：Anesthesiology

authors： Mitchell MM,Prakash O,Rulf EN,van Daele ME,Cahalan MK,Roelandt JR

更新日期：1989-10-01 00:00:00

abstract：BACKGROUND:mu-Opioids administered spinally produce a potent, dose-dependent analgesic response in preclinical and clinical investigations. Side-effect profile of these compounds may be altered as a function of pharmacokinetics. The effects of intrathecal and intraperitoneal remifentanil, an esterase-metabolized mu opi...

journal_title：Anesthesiology

authors： Buerkle H,Yaksh TL

更新日期：1996-01-01 00:00:00

abstract：BACKGROUND:Sympathetic nerve activity was recorded in the leg during high thoracic epidural anesthesia with a segmental sensory blockade of the upper thoracic dermatomes to test the hypothesis that the sympathetic blockade accompanying thoracic epidural anesthesia includes caudal parts of the sympathetic nervous system...

journal_title：Anesthesiology

authors： Magnúsdóttir H,Kirnö K,Ricksten SE,Elam M

更新日期：1999-11-01 00:00:00

abstract：:Deliberate hypotension was induced with isoflurane (mean inspired concentration 2.3 +/- 1.0%) in 12 patients undergoing craniotomy for clipping of cerebral aneurysms. Global cerebral blood flow (CBF) was measured before, during, and after hypotension. Arterio-venous O2 content difference was measured concomitantly, an...

journal_title：Anesthesiology

authors： Newman B,Gelb AW,Lam AM

更新日期：1986-03-01 00:00:00

abstract：BACKGROUND:Pain behavior in response to skin incision is developmentally regulated, but little is known about the underlying neuronal mechanisms. The authors hypothesize that the spatial activation and intensity of dorsal horn neuron responses to skin incision differ in immature and adult spinal cord. METHODS:Single w...

journal_title：Anesthesiology

authors： Ririe DG,Bremner LR,Fitzgerald M

更新日期：2008-10-01 00:00:00

abstract：:The effect of enflurane (2% and 4% inspired) on left ventricular (LV) function were examined in chronically instrumented dogs, both intact and after isolation of their hearts and lungs from the systemic circulation. Enflurane in the intact dogs increased heart rate (32 +/- 5% with 2% and 41 +/- 4% with 4%) and elicite...

journal_title：Anesthesiology

authors： Zimpfer M,Gilly H,Krösl P,Schlag G,Steinbereithner K

更新日期：1983-02-01 00:00:00

abstract：BACKGROUND:Propofol may produce amnesia by affecting encoding. The hypothesis that propofol weakens encoding was tested by measuring regional cerebral blood flow during verbal encoding. METHODS:Seventeen volunteer participants (12 men; aged 30.4 +/- 6.5 yr) had regional cerebral blood flow measured using H2O positron ...

journal_title：Anesthesiology

authors： Veselis RA,Pryor KO,Reinsel RA,Mehta M,Pan H,Johnson R Jr

更新日期：2008-08-01 00:00:00

abstract：:This study was designed to assess the relationship between MAC and hypertension. To this purpose, MAC of halothane was determined in fully inbred spontaneously hypertensive rats (SHR) and Wistar Kyoto rats (WKY). Because MAC determination was performed in animals whose lungs were mechanically ventilated, the adequacy ...

journal_title：Anesthesiology

authors： Wouters P,Doursout MF,Merin RG,Chelly JE

更新日期：1990-05-01 00:00:00

abstract：:The anesthetic effects and interactions of midazolam and fentanyl were determined in terms of their reduction of enflurane MAC in dogs, and the effects of their specific antagonists were also investigated. Control enflurane MAC was determined by the tail clamp method in 18 mongrel dogs. Each animal then received an iv...

journal_title：Anesthesiology

authors： Schwieger IM,Hall RI,Szlam F,Hug CC Jr

更新日期：1989-04-01 00:00:00

abstract：BACKGROUND:The spinal delivery of the cholinesterase inhibitor neostigmine yields analgesia in rats and augments the analgesic effects of alpha 2 agonists in sheep. To assess its activity in humans, preclinical toxicology studies to define its safety were required in two species. METHODS:Rats with chronic intrathecal ...

journal_title：Anesthesiology

authors： Yaksh TL,Grafe MR,Malkmus S,Rathbun ML,Eisenach JC

更新日期：1995-02-01 00:00:00

abstract：BACKGROUND:The rate of administration of an intravenous anesthetic induction agent is an important variable determining the total dose required to reach a given endpoint, such as loss of consciousness (LOC). The influence of infusion rate on the dose-response relationship has not been described rigorously. In this stud...

journal_title：Anesthesiology

authors： Gentry WB,Krejcie TC,Henthorn TK,Shanks CA,Howard KA,Gupta DK,Avram MJ

更新日期：1994-08-01 00:00:00

abstract：BACKGROUND:Adding sodium bicarbonate to lidocaine to enhance its efficacy during peripheral nerve block is controversial. The authors studied the effect of adding sodium bicarbonate to lidocaine with and without epinephrine versus equivalent alkalinization by sodium hydroxide (NaOH) on onset, degree, and duration of pe...

journal_title：Anesthesiology

authors： Sinnott CJ,Garfield JM,Thalhammer JG,Strichartz GR

更新日期：2000-10-01 00:00:00

abstract：:Anesthetized, prone dogs were intubated with a double-lumen endobronchial tube, and the lungs were ventilated independently. Three methods of recording differential blood flow were compared during unilateral lung hypoxia: electromagnetic flow measurement, flow probes being fitted onto each main pulmonary artery after ...

journal_title：Anesthesiology

authors： Carlsson AJ,Hedenstierna G,Blomqvist H,Strandberg A

更新日期：1987-08-01 00:00:00

abstract：BACKGROUND:The health-related effects of the operating room environment are unclear. The authors compared mortality risks of anesthesiologists to those of internal medicine physicians between 1979 and 1995. METHODS:The Physician Master File database, a listing of all US physicians, was used to identify anesthesiologis...

journal_title：Anesthesiology

authors： Alexander BH,Checkoway H,Nagahama SI,Domino KB

更新日期：2000-10-01 00:00:00

abstract：:Premedication with diazepam, hydroxyzine or secobarbital significantly increased ketamine-induced sleep time (137 +/- 3.5 min, 135 +/- 9.2 min, 128 +/- 4.7 min) over that of unpremedicated controls (98.5 +/- 4.4 min) in man. The corresponding mean plasma half-lives (t1/2) of ketamine were longer in patients premedicat...

journal_title：Anesthesiology

authors： Lo JN,Cumming JF

更新日期：1975-09-01 00:00:00

abstract：:In experiments with rats, the authors compared potency ratios and slopes of dose-effect curves of isoflurane, halothane, and diethyl ether for three end points of anesthesia: loss of righting reflex (RR), abolition of purposeful movement (PM) response to painful stimuli, and abolition of heart rate (HR) response to pa...

journal_title：Anesthesiology

authors： Kissin I,Morgan PL,Smith LR

更新日期：1983-01-01 00:00:00

abstract：BACKGROUND:Cardiac surgery requiring the use of cardiopulmonary bypass is frequently complicated by coagulopathic bleeding that, largely due to the shortcomings of conventional coagulation tests, is difficult to manage. This study evaluated a novel transfusion algorithm that uses point-of-care coagulation testing. MET...

journal_title：Anesthesiology

authors： Karkouti K,McCluskey SA,Callum J,Freedman J,Selby R,Timoumi T,Roy D,Rao V

更新日期：2015-03-01 00:00:00

abstract：BACKGROUND:Intrathecal methylprednisolone acetate (MPA) has been used in patients with chronic pain syndromes. Its safety has been debated after reports of adverse events. No systematic preclinical evaluation of MPA has been reported. In the current study, the acute and long-term effects of intrathecal MPA on dog spina...

journal_title：Anesthesiology

authors： Rijsdijk M,van Wijck AJ,Kalkman CJ,Meulenhoff PC,Grafe MR,Steinauer J,Yaksh TL

更新日期：2012-01-01 00:00:00

abstract：BACKGROUND:Arginine vasopressin (AVP) is an important "stress" hormone that is known to play a key role in cardiovascular homeostasis of the systemic circulation. In contrast, the effects of AVP on the pulmonary circulation have not been extensively investigated, and the extent to which general anesthesia alters the pu...

journal_title：Anesthesiology

authors： Trempy GA,Nyhan DP,Murray PA

更新日期：1994-09-01 00:00:00