Drug-induced amnesia is a separate phenomenon from sedation: electrophysiologic evidence.

Abstract:

BACKGROUND:Sedative-hypnotic drugs not only increase sedation, but also impair memory as serum concentration increases. These drugs also produce profound changes in the auditory event-related potential (ERP). The ability of various ERP components to predict changes in sedation and memory produced by various drugs was tested. METHODS:Sixty-five healthy volunteers randomly received intravenous placebo, midazolam, propofol, thiopental, fentanyl with ondansetron, or ondansetron alone at five different stable target concentrations (three increasing, two decreasing) using a computer-controlled infusion pump to produce varying degrees of sedation without loss of consciousness. ERPs were recorded while volunteer participants detected a deviant auditory stimulus and made a button-press response to a target tone (standard oddball paradigm, 80:20 ratio, to elicit a P3 response). At each target concentration, volunteers learned a list of 16 words. The predictive probabilities (Pk) of various ERP components were determined for word recognition at the end of the day (memory) and log reaction time to the deviant stimulus (sedation). RESULTS:The N2 latency of the ERP consistently predicted log reaction time in all groups (Pk +/- SE from 0.58 +/- 0.04 to 0.71 +/- 0.04). The N2P3 amplitude of the ERP was the best predictor of memory performance for midazolam (Pk, 0.63 +/- 0.04), propofol (Pk, 0.62 +/- 0.05), and thiopental (Pk, 0.66 +/- 0.04). There was a differential ability to predict memory performance from sedation for midazolam and propofol. CONCLUSIONS:Midazolam and propofol affect memory differentially from their sedative effects, and these are indexed by specific components of the auditory ERP. These components of the ERP are associated with specific, but not necessarily unique, neuroanatomic structures. Thus, these drugs act by additional mechanisms beyond general central nervous system depression to produce the effects of sedation and memory impairment.

journal_name

Anesthesiology

journal_title

Anesthesiology

authors

Veselis RA,Reinsel RA,Feshchenko VA

doi

10.1097/00000542-200110000-00018

subject

Has Abstract

pub_date

2001-10-01 00:00:00

pages

896-907

issue

4

eissn

0003-3022

issn

1528-1175

journal_volume

95

pub_type

临床试验,杂志文章,随机对照试验
  • Consumption of vitamin B12 during sodium nitroprusside administration in humans.

    abstract::In view of evidence suggesting possible participation of cobalamin in cyanide metabolism, the effects of sodium nitroprusside (SNP) infusion on blood cyanide and plasma thiocyanate levels and serum vitamin B12 levels were examined in ten patients undergoing major orthopedic procedures. Whole blood cyanide concentratio...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198104000-00009

    authors: Fahmy NR

    更新日期:1981-04-01 00:00:00

  • The invention and development of enflurane, isoflurane, sevoflurane, and desflurane.

    abstract::Thirty-six halogenated Me Et ethers have been synthesized for evaluation as volatile anesthetics. Eleven of the ethers were too unstable to test, and, of the remaining 25, 13 had promising anesthetic properties in mice and are suitable for study in larger animals. Those ethers having one H with at least 2 halogens oth...

    journal_title:Anesthesiology

    pub_type: 杂志文章,评审

    doi:10.1097/ALN.0b013e31816499cc

    authors: Terrell RC

    更新日期:2008-03-01 00:00:00

  • Peripheral antinociceptive action of morphine and the synergistic interaction with lamotrigine.

    abstract:BACKGROUND:Lamotrigine inhibits glutamate release through the preferential blockade of voltage-dependent Na+ channels. In contrast, morphine reduces release of excitatory amino acids through the activation of opioid receptors and also inhibits tetrodotoxin-resistant Na+ channels on peripheral afferent neurons. The curr...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200204000-00020

    authors: Argüelles CF,Torres-López JE,Granados-Soto V

    更新日期:2002-04-01 00:00:00

  • Differential effects of lidocaine and mexiletine on relaxations to ATP-sensitive K+ channel openers in rat aortas.

    abstract:BACKGROUND:In cardiac myocytes, lidocaine reduces but mexiletine increases adenosine triphosphate (ATP)-sensitive K+ currents, suggesting that these class Ib antiarrhythmic drugs may differentially modify the activity of ATP-sensitive K+ channels. The effects of lidocaine and mexiletine on arterial relaxations induced ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199904000-00032

    authors: Kinoshita H,Ishikawa T,Hatano Y

    更新日期:1999-04-01 00:00:00

  • Cardiopulmonary resuscitation: effect of CPAP on gas exchange during chest compressions.

    abstract:BACKGROUND:Conventional cardiopulmonary resuscitation (CPR) includes 80-100/min precordial compressions with intermittent positive pressure ventilation (IPPV) after every fifth compression. To prevent gastric insufflation, chest compressions are held during IPPV if the patient is not intubated. Elimination of IPPV woul...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199904000-00022

    authors: Hevesi ZG,Thrush DN,Downs JB,Smith RA

    更新日期:1999-04-01 00:00:00

  • Impaired systolic thickening associated with halothane in the presence of a coronary stenosis is mediated by changes in hemodynamics.

    abstract::Myocardial ischemia results when halothane is administered to animals with severe coronary stenosis. This study was done to separate the effect of halothane, per se, on myocardial ischemia from indirect cardiovascular effects, primarily hypotension, that might cause ischemia by altering the oxygen supply-demand balanc...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198605000-00014

    authors: Buffington CW

    更新日期:1986-05-01 00:00:00

  • Ketamine and Etomidate Down-regulate the Hypothalamic-Pituitary-Adrenal Axis in an Endotoxemic Mouse Model.

    abstract:BACKGROUND:We compared the effects of etomidate and ketamine on the hypothalamic-pituitary-adrenal axis during sepsis. METHODS:Mice (n = 5/group) were injected intraperitoneally with lipopolysaccharide (10 mg/kg) and 6 h later randomized to receive ketamine (100 mg/kg), etomidate (30 mg/kg), or saline. At two time poi...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0000000000001704

    authors: Besnier E,Clavier T,Tonon MC,Selim J,Lefevre-Scelles A,Morin F,Tamion F,Dureuil B,Castel H,Compere V

    更新日期:2017-08-01 00:00:00

  • A comparison of the posterior versus lateral approaches to the block of the sciatic nerve in the popliteal fossa.

    abstract:BACKGROUND:The main disadvantage of the posterior approach to the block of the sciatic nerve in the popliteal fossa (popliteal block [PB]) is the need to place the patient in the prone position. In this study, the authors examined the clinical utility of a recently described lateral approach to PB that is performed wit...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-199806000-00010

    authors: Hadzić A,Vloka JD

    更新日期:1998-06-01 00:00:00

  • Mechanisms of differential axial blockade in epidural and subarachnoid anesthesia.

    abstract::The mechanisms of persistent differential blocks that accompany subarachnoid and epidural anesthesia are clarified here with the aid of two principles derived from in vitro study of individual myelinated axons: 1) conduction can leap two consecutive blocked nodes but not three, and 2) a fiber length with more than thr...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198905000-00023

    authors: Fink BR

    更新日期:1989-05-01 00:00:00

  • Pharyngeal mucosal pressures, airway sealing pressures, and fiberoptic position with the intubating versus the standard laryngeal mask airway.

    abstract:BACKGROUND:The tube of the intubating laryngeal mask (ILM) is more rigid than the standard laryngeal mask airway (LMA), and the authors have tested the hypothesis that pharyngeal mucosal pressures, airway sealing pressures, and fiberoptic position are different when the two devices are compared. METHODS:Twenty anesthe...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-199904000-00012

    authors: Keller C,Brimacombe J

    更新日期:1999-04-01 00:00:00

  • Sympathetic ganglionic blockade masks beneficial effect of isoflurane on histologic outcome from near-complete forebrain ischemia in the rat.

    abstract:BACKGROUND:Isoflurane-anesthetized rats have better outcome from global cerebral ischemia than rats anesthetized with fentanyl and nitrous oxide. The authors wanted to determine whether circulating catecholamine concentrations depend on the anesthetic agent and whether sympathetic ganglionic blockade affects anesthetic...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199903000-00031

    authors: Mackensen GB,Nellgård B,Miura Y,Chu CT,Dexter F,Pearlstein RD,Warner DS

    更新日期:1999-03-01 00:00:00

  • Ineffectiveness of burst suppression therapy in mitigating perioperative cerebrovascular dysfunction. Multicenter Study of Perioperative Ischemia (McSPI) Research Group.

    abstract:BACKGROUND:Cerebral injury is among the most common and disabling complications of open heart surgery. Attempts to provide neuroprotection have yielded conflicting results. We assessed the potential of propofol-induced burst suppression during open heart surgery to provide cerebral protection as determined by postopera...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,多中心研究,随机对照试验

    doi:10.1097/00000542-199905000-00006

    authors: Roach GW,Newman MF,Murkin JM,Martzke J,Ruskin A,Li J,Guo A,Wisniewski A,Mangano DT

    更新日期:1999-05-01 00:00:00

  • Effects of intravenous or subarachnoid morphine on cerebral and spinal cord hemodynamics and antagonism with naloxone in dogs.

    abstract::In order to elucidate the possible mechanism(s) by which opiates may affect cerebral and spinal circulation, and cerebral metabolism, cerebral blood flow (CBF) and spinal cord blood flow (SCBF) were measured simultaneously following intravenous or subarachnoid administration of morphine in dogs lightly anesthetized wi...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:

    authors: Matsumiya N,Dohi S

    更新日期:1983-09-01 00:00:00

  • Effects of nitrous oxide on human regional cerebral blood flow and isolated pial arteries.

    abstract:BACKGROUND:Results from previous studies on the effect of nitrous oxide (N2O) on the cerebral circulation are conflicting. Early reports claim N2O to have no effect whereas recent findings demonstrate a cerebral cortical vasodilatation during N2O inhalation, but the regional cerebral blood flow (CBF) in the subcortical...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199408000-00018

    authors: Reinstrup P,Ryding E,Algotsson L,Berntman L,Uski T

    更新日期:1994-08-01 00:00:00

  • Neuromuscular and cardiovascular effects of mivacurium in children.

    abstract::The neuromuscular and cardiovascular effects of mivacurium chloride (BW B1090U) were evaluated in 90 children (2-12 yr) during N2O:O2 halothane or N2O:O2 narcotic anesthesia. Neuromuscular response was evaluated by recording the force of contraction of the adductor of the thumb during train-of-four stimulation at 0.1 ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198902000-00010

    authors: Goudsouzian NG,Alifimoff JK,Eberly C,Smeets R,Griswold J,Miler V,McNulty BF,Savarese JJ

    更新日期:1989-02-01 00:00:00

  • Opioid facilitation of rewarding electrical brain stimulation is suppressed in rats with neuropathic pain.

    abstract:INTRODUCTION:Opioids are powerful analgesics, but are also common drugs of abuse. Few studies have examined how neuropathic pain alters the pharmacology of opioids in modulating limbic pathways that underlie abuse liability. METHODS:Rats with or without spinal nerve ligation (SNL) were implanted with electrodes into t...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e31820a4edb

    authors: Ewan EE,Martin TJ

    更新日期:2011-03-01 00:00:00

  • The actions of halothane, ibuprofen and BW755C on hypoxic pulmonary vasoconstriction.

    abstract::The effect of halothane on the pressor responses to hypoxia (3% O2, 5% CO2, balance N2) and to Angiotensin II (Ang II) (0.2 microgram) has been compared in an in vitro perfused and ventilated rat lung preparation in the presence and absence of agents known to block the lipoxygenase (BW755C) and/or the cyclooxygenase (...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198704000-00015

    authors: Marshall C,Kim SD,Marshall BE

    更新日期:1987-04-01 00:00:00

  • Interaction of neuromuscular blocking effects of neomycin and polymyxin B.

    abstract::Neomycin and polymyxin B produce neuromuscular blocks with distinct features by different mechanisms of action. In eight anesthetized cats the authors studied their interaction by examining the neuromuscular block produced by an equipotent mixture. Values of onset, potency, dose-response relations, duration and revers...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-197903000-00010

    authors: Lee C,de Silva AJ

    更新日期:1979-03-01 00:00:00

  • Patient selection for day case-eligible surgery: identifying those at high risk for major complications.

    abstract:BACKGROUND:Due to economic pressures and improvements in perioperative care, outpatient surgical procedures have become commonplace. However, risk factors for outpatient surgical morbidity and mortality remain unclear. There are no multicenter clinical data guiding patient selection for outpatient surgery. The authors ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0000000000000005

    authors: Mathis MR,Naughton NN,Shanks AM,Freundlich RE,Pannucci CJ,Chu Y,Haus J,Morris M,Kheterpal S

    更新日期:2013-12-01 00:00:00

  • The minimum alveolar concentration (MAC) and hemodynamic effects of halothane, isoflurane, and sevoflurane in newborn swine.

    abstract::To determine the minimum alveolar concentration (MAC) and hemodynamic responses to halothane, isoflurane, and sevoflurane in newborn swine, 36 fasting swine 4-10 days of age were anesthetized with one of the three volatile anesthetics in 100% oxygen. MAC was determined for each swine. Carotid artery and internal jugul...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199010000-00018

    authors: Lerman J,Oyston JP,Gallagher TM,Miyasaka K,Volgyesi GA,Burrows FA

    更新日期:1990-10-01 00:00:00

  • Sonographic visualization and ultrasound-guided block of the third occipital nerve: prospective for a new method to diagnose C2-C3 zygapophysial joint pain.

    abstract:BACKGROUND:Chronic neck pain after whiplash injury is caused by cervical zygapophysial joints in 50% of patients. Diagnostic blocks of nerves supplying the joints are performed using fluoroscopy. The authors' hypothesis was that the third occipital nerve can be visualized and blocked with use of an ultrasound-guided te...

    journal_title:Anesthesiology

    pub_type: 杂志文章,随机对照试验

    doi:10.1097/00000542-200602000-00016

    authors: Eichenberger U,Greher M,Kapral S,Marhofer P,Wiest R,Remonda L,Bogduk N,Curatolo M

    更新日期:2006-02-01 00:00:00

  • Adrenergic vasoconstriction in peripheral nerves of the rabbit.

    abstract::The blood flow in the sciatic nerve of the rabbit was estimated from the wash out of intraneurally injected 133Xe. To avoid diffusion of the tracer into the surrounding muscular tissue, the nerve was covered by a gas-tight plastic film. Using this technique, the basal blood flow in the sciatic nerve was estimated to 3...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198501000-00002

    authors: Selander D,Månsson LG,Karlsson L,Svanvik J

    更新日期:1985-01-01 00:00:00

  • Cardiorespiratory effects of positive end-expiratory pressure during progressive tidal volume reduction (permissive hypercapnia) in patients with acute respiratory distress syndrome.

    abstract:BACKGROUND:In patients with acute respiratory distress syndrome (ARDS), the ventilatory approach is based on tidal volume (VT) of 10-15 ml/kg and positive end-expiratory pressure (PEEP). To avoid further pulmonary injury, decreasing VT and allowing PaCO2 to increase (permissive hypercapnia) has been suggested. Effects ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199510000-00010

    authors: Ranieri VM,Mascia L,Fiore T,Bruno F,Brienza A,Giuliani R

    更新日期:1995-10-01 00:00:00

  • Continuous cardiac output in septic shock by simulating a model of the aortic input impedance: a comparison with bolus injection thermodilution.

    abstract:BACKGROUND:To compare continuous cardiac output obtained by simulation of an aortic input impedance model to bolus injection thermodilution (TDCO) in critically ill patients with septic shock. METHODS:In an open study, mechanically ventilated patients with septic shock were monitored for 1 (32 patients), 2 (15 patient...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199905000-00016

    authors: Jellema WT,Wesseling KH,Groeneveld AB,Stoutenbeek CP,Thijs LG,van Lieshout JJ

    更新日期:1999-05-01 00:00:00

  • Fertility, reproduction, and postnatal survival in mice chronically exposed to isoflurane.

    abstract::The effects on fertility and reproductive wastage of 110 female Swiss/Webster mice and postnatal survival of their offspring were examined after exposure to either air, 0.4% isoflurane, or 0.1% isoflurane. Treatments were for 4 h daily for 2 weeks before and during pregnancy. In a second experiment, the effects on fer...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198512000-00017

    authors: Mazze RI

    更新日期:1985-12-01 00:00:00

  • Positive end-expiratory pressure ventilation elicits increases in endogenously formed nitric oxide as detected in air exhaled by rabbits.

    abstract:BACKGROUND:Nitric oxide (NO) formed from L-arginine is exhaled by mammals and regulates pulmonary vascular tone. Little is known about how its formation is stimulated. METHODS:The concentration of NO in exhaled air was monitored by chemiluminescence in pentobarbital-anesthetized rabbits receiving mechanical ventilatio...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199504000-00021

    authors: Persson MG,Lönnqvist PA,Gustafsson LE

    更新日期:1995-04-01 00:00:00

  • Parental presence during induction of anesthesia: physiological effects on parents.

    abstract:BACKGROUND:The authors conducted a randomized controlled trial to determine whether parental presence during induction of anesthesia (PPIA) is associated with parental physiologic and behavioral manifestations of stress. METHODS:Children and their parents (N = 80) were randomly assigned to one of three groups: (1) PPI...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-200301000-00013

    authors: Kain ZN,Caldwell-Andrews AA,Mayes LC,Wang SM,Krivutza DM,LoDolce ME

    更新日期:2003-01-01 00:00:00

  • A novel porcine model of ventilator-associated pneumonia caused by oropharyngeal challenge with Pseudomonas aeruginosa.

    abstract:BACKGROUND:Animal models of ventilator-associated pneumonia (VAP) in primates, sheep, and pigs differ in the underlying pulmonary injury, etiology, bacterial inoculation methods, and time to onset. The most common ovine and porcine models do not reproduce the primary pathogenic mechanism of the disease, through the asp...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0000000000000222

    authors: Li Bassi G,Rigol M,Marti JD,Saucedo L,Ranzani OT,Roca I,Cabanas M,Muñoz L,Giunta V,Luque N,Rinaudo M,Esperatti M,Fernandez-Barat L,Ferrer M,Vila J,Ramirez J,Torres A

    更新日期:2014-05-01 00:00:00

  • Diphenylhydramine increases ventilatory drive during alfentanil infusion.

    abstract:BACKGROUND:Diphenhydramine is used as an antipruritic and antiemetic in patients receiving opioids. Whether it might exacerbate opioid-induced ventilatory depression has not been determined. METHODS:The ventilatory response to carbon dioxide during hyperoxia and the ventilatory response to hypoxia during hypercapnia (...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199809000-00013

    authors: Babenco HD,Blouin RT,Conard PF,Gross JB

    更新日期:1998-09-01 00:00:00

  • Period-dependent Associations between Hypotension during and for Four Days after Noncardiac Surgery and a Composite of Myocardial Infarction and Death: A Substudy of the POISE-2 Trial.

    abstract:BACKGROUND:The relative contributions of intraoperative and postoperative hypotension to perioperative morbidity remain unclear. We determined the association between hypotension and a composite of 30-day myocardial infarction and death over three periods: (1) intraoperative, (2) remaining day of surgery, and (3) durin...

    journal_title:Anesthesiology

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1097/ALN.0000000000001985

    authors: Sessler DI,Meyhoff CS,Zimmerman NM,Mao G,Leslie K,Vásquez SM,Balaji P,Alvarez-Garcia J,Cavalcanti AB,Parlow JL,Rahate PV,Seeberger MD,Gossetti B,Walker SA,Premchand RK,Dahl RM,Duceppe E,Rodseth R,Botto F,Devereaux P

    更新日期:2018-02-01 00:00:00