Isoflurane causes "flickering" of the acetylcholine receptor channel: observations using the patch clamp.

abstract：BACKGROUND:Intrathecal sufentanil (ITS) is frequently used to provide analgesia during labor. Decreases in blood pressure and sensory changes in this circumstance suggest that ITS may have a local anesthetic effect and thus cause a sympathectomy. To determine whether ITS given to laboring women causes a sympathectomy, ...

journal_title：Anesthesiology

authors： Riley ET,Walker D,Hamilton CL,Cohen SE

更新日期：1997-10-01 00:00:00

abstract：:Previous investigators have identified an aortic-to-radial artery pressure gradient thought to develop during rewarming and discontinuation of cardiopulmonary bypass. The authors measured mean aortic and radial artery pressures before, during, and after cardiopulmonary bypass in 30 patients, to determine when the pres...

journal_title：Anesthesiology

authors： Rich GF,Lubanski RE Jr,McLoughlin TM

更新日期：1992-07-01 00:00:00

abstract：:Ketamine is used clinically as a racemic mixture of optical isomers that differ in their analgesic properties and psychomimetic effects. Administered individually, or together as the racemate, ketamine enantiomers differ in their hepatic clearance and duration of anesthetic effect. S(+) ketamine exhibits a greater cle...

journal_title：Anesthesiology

authors： Kharasch ED,Labroo R

更新日期：1992-12-01 00:00:00

abstract：BACKGROUND:Spontaneous tremor is relatively common in normothermic patients after operation and has been attributed to many causes. The hypothesis that nonthermoregulatory shivering-like tremor is facilitated by postoperative pain was tested. In addition, the effects of intravenous lidocaine on nonthermoregulatory trem...

journal_title：Anesthesiology

authors： Horn EP,Schroeder F,Wilhelm S,Sessler DI,Standl T,von dem Busche K,Schulte am Esch J

更新日期：1999-10-01 00:00:00

abstract：BACKGROUND:Blood pressure (BP) monitoring with arterial waveform display requires an arterial cannula. We evaluated a new noninvasive device, Vasotrac (Medwave, Arden Hills, MN) that provides BP measurements approximately every 12-15 beats and displays pulse rate and a calibrated arterial waveform for each BP measureme...

journal_title：Anesthesiology

authors： Belani K,Ozaki M,Hynson J,Hartmann T,Reyford H,Martino JM,Poliac M,Miller R

更新日期：1999-09-01 00:00:00

abstract：:The authors undertook a prospective study of 30 patients undergoing halothane anesthesia for coronary-artery revascularization to ascertain which clinically monitored hemodynamic variables--or combination of variables--associated with myocardial oxygen supply and demand best predict myocardial ischemia. Simultaneous r...

journal_title：Anesthesiology

authors： Lieberman RW,Orkin FK,Jobes DR,Schwartz AJ

更新日期：1983-07-01 00:00:00

abstract：BACKGROUND:Ketamine is a potent bronchodilator that, in clinically used concentrations, relaxes airway smooth muscle in part by a direct effect. This study explored the role of calcium concentration (Ca2+) in this relaxation. METHODS:Canine trachea smooth muscle strips were loaded with the fluorescent probe fura-2 and...

journal_title：Anesthesiology

authors： Pabelick CM,Jones KA,Street K,Lorenz RR,Warner DO

更新日期：1997-05-01 00:00:00

abstract：:Volatile anesthetics inhibit phagocytic cell function, yet little is known about their effects on target tissues or on the target tissue response to stimulated phagocytes. Experiments were performed to determine how exposure to halothane and isoflurane changes rat pulmonary artery endothelial cell (RPAEC) viability in...

journal_title：Anesthesiology

authors： Shayevitz JR,Varani J,Ward PA,Knight PR

更新日期：1991-06-01 00:00:00

abstract：BACKGROUND:Impaired cardiac repolarization, indicated by prolonged QT interval, may cause critical ventricular arrhythmias. Many anesthetics increase the QT interval by blockade of rapidly acting potassium rectifier channels. Although xenon does not affect these channels in isolated cardiomyocytes, the authors hypothes...

journal_title：Anesthesiology

authors： Neukirchen M,Schaefer MS,Kern C,Brett S,Werdehausen R,Rellecke P,Reyle-Hahn M,Kienbaum P

更新日期：2015-09-01 00:00:00

abstract：BACKGROUND:During deep brain stimulation implant surgery, microelectrode recordings are used to map the location of targeted neurons. The effects produced by propofol or remifentanil on discharge activity of subthalamic neurons were studied intraoperatively to determine whether they alter neuronal activity. METHODS:Mi...

journal_title：Anesthesiology

authors： Maciver MB,Bronte-Stewart HM,Henderson JM,Jaffe RA,Brock-Utne JG

更新日期：2011-08-01 00:00:00

abstract：BACKGROUND:Crystalloid solutions are used to restore intravascular volume in septic patients, but each solution has limitations. The authors compared the effects of three crystalloid solutions on hemodynamics, organ function, microcirculation, and survival in a sepsis model. METHODS:Peritonitis was induced by injectio...

journal_title：Anesthesiology

authors： Orbegozo D,Su F,Santacruz C,He X,Hosokawa K,Creteur J,De Backer D,Vincent JL

更新日期：2016-10-01 00:00:00

abstract：BACKGROUND:The role of endothelial nitric oxide synthase (eNOS) in isoflurane postconditioning (IsoPC)-elicited cardioprotection is poorly understood. The authors addressed this issue using eNOS mice. METHODS:In vivo or Langendorff-perfused mouse hearts underwent 30 min of ischemia followed by 2 h of reperfusion in th...

journal_title：Anesthesiology

authors： Ge ZD,Pravdic D,Bienengraeber M,Pratt PF Jr,Auchampach JA,Gross GJ,Kersten JR,Warltier DC

更新日期：2010-01-01 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 aim of this study was to generate a score based on preoperative characteristics and predictive of the individual probability of allogeneic erythrocyte transfusion in patients undergoing elective thoracolumbar spine surgery. METHODS:Two hundred thirty consecutive patients were retrospectively included ov...

journal_title：Anesthesiology

authors： Lenoir B,Merckx P,Paugam-Burtz C,Dauzac C,Agostini MM,Guigui P,Mantz J

更新日期：2009-05-01 00:00:00

abstract：BACKGROUND:Propofol is short-acting intravenous general anesthetics that reduces cardiovascular hemodynamics. The effects of propofol on intrinsic myocardial contractility, however, remain debatable. The aim of the current study was to test the hypothesis that inhibitory effects of propofol on left ventricular (LV) con...

journal_title：Anesthesiology

authors： Kuzumoto N,Kitagawa Y,Uemura K,Ueyama T,Yoshida K,Furuya H,Takaki M

更新日期：2004-10-01 00:00:00

abstract：:Decreased urinary output (Vu ml/min) after institution of PEEP is attributed to a variety of mechanisms including decreased cardiac output and renal blood flow (RBF), activation of neurohormonal reflexes, increased catecholamines, plasma renin activity (PRA), and antidiuretic hormone (ADH) release. To evaluate these f...

journal_title：Anesthesiology

authors： Payen DM,Farge D,Beloucif S,Leviel F,De La Coussaye JE,Carli P,Wirquin V

更新日期：1987-01-01 00:00:00

abstract：BACKGROUND:The authors' purpose in this study was to compare prospectively four different anesthetic induction and maintenance techniques using nitrous oxide with halothane and/or propofol for vomiting and recovery after outpatient tonsillectomy and adenoidectomy procedures in children. METHODS:Eighty unpremedicated c...

journal_title：Anesthesiology

authors： Ved SA,Walden TL,Montana J,Lea DE,Tefft MC,Kataria BK,Pudimat MA,Nicodemus HF,Milmoe GJ

更新日期：1996-07-01 00:00:00

abstract：:This study reports effects of halothane on tumor cells in vitro. Cells from the human colon cancer cell line HT-29 were exposed to various concentrations of halothane for 8-72 h. The effect of this exposure on this colon cancer cell line, with and without coincubation with the biologic response modifier gamma-interfer...

journal_title：Anesthesiology

authors： Rudnick S,Stevenson GW,Hall SC,Espinoza-Delgado I,Stevenson HC,Longo DL

更新日期：1991-01-01 00:00:00

abstract：BACKGROUND:Glutamate has been implicated in the pathophysiology of neuronal injury associated with cerebral hypoxia-ischemia. A model using chronic in utero microdialysis was developed to sample the extracellular space of the fetal brain. Using this model, we tested the hypothesis that glutamate efflux from the parasag...

journal_title：Anesthesiology

authors： Penning DH,Chestnut DH,Dexter F,Hrdy J,Poduska D,Atkins B

更新日期：1995-02-01 00:00:00

abstract：BACKGROUND:Postoperative delirium is one of the most common complications in the elderly surgical population. However, its long-term outcomes remain largely to be determined. Therefore a prospective cohort study was conducted to determine the association between postoperative delirium and long-term decline in activitie...

journal_title：Anesthesiology

authors： Shi Z,Mei X,Li C,Chen Y,Zheng H,Wu Y,Zheng H,Liu L,Marcantonio ER,Xie Z,Shen Y

更新日期：2019-09-01 00:00:00

abstract：BACKGROUND:Spinal adenosine receptor agonists exert antinociception in animal models of acute and chronic pain, but adenosine itself has not been examined. The authors tested the antinociceptive and antihypersensitivity interactions of intrathecal adenosine and its interactions with intrathecal clonidine and neostigmin...

journal_title：Anesthesiology

authors： Chiari AI,Eisenach JC

更新日期：1999-05-01 00:00:00

abstract：:Vastus lateralis muscle was excised from normal pigs and from pigs susceptible to malignant hyperthermia. Anesthesia consisted of diazepam, N2O:O2, and a lidocaine field block. In the susceptible (MHS) pigs, respiratory control in mitochondria of excised muscle was normal, while electron transport was accelerated. Glu...

journal_title：Anesthesiology

authors： Britt BA,Endrenyi L,Cadman DL,Fan HM,Fung HY

更新日期：1975-03-01 00:00:00

abstract：BACKGROUND:There is an increasing interest in the use of dexmedetomidine for anesthesia and sedation. Here, we used the mouse organotypic hippocampal slice culture to investigate whether dexmedetomidine exhibits postconditioning properties against oxygen and glucose deprivation (OGD). The role of the focal adhesion and...

journal_title：Anesthesiology

authors： Dahmani S,Rouelle D,Gressens P,Mantz J

更新日期：2010-02-01 00:00:00

abstract：BACKGROUND:Whether the fetus can experience pain remains controversial. During the last half of pregnancy, the neuroanatomic connections for nociception are in place, and the human fetus mounts sizable stress responses to physical insults. Analgesia has been recommended for intrauterine procedures or late termination, ...

journal_title：Anesthesiology

authors： Fisk NM,Gitau R,Teixeira JM,Giannakoulopoulos X,Cameron AD,Glover VA

更新日期：2001-10-01 00:00:00

abstract：:Controversy persists about the cardiac toxicity of bupivacaine if accidentally administered intravenously during regional anesthesia. Using awake, unanesthetized sheep, we evaluated the cardiac effects of low and high equivalent doses of lidocaine and bupivacaine given intravenously over 10 s. All animals convulsed wi...

journal_title：Anesthesiology

authors： Kotelko DM,Shnider SM,Dailey PA,Brizgys RV,Levinson G,Shapiro WA,Koike M,Rosen MA

更新日期：1984-01-01 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：BACKGROUND:Recent evidence suggests that anesthetic action within the spinal cord is important in suppressing somatic responses to painful stimuli. Whether the brain influences this response is not clear. This study was designed to test the hypothesis that the brain affects anesthetic requirements. METHODS:Six goats w...

journal_title：Anesthesiology

authors： Borges M,Antognini JF

更新日期：1994-12-01 00:00:00

abstract：:Anesthetic induction with propofol commonly results in hypotension. This study explored potential mechanisms contributing to hypotension by recording cardiovascular responses including sympathetic neural activity from patients during induction of anesthesia with propofol (2.5 mg.kg-1 plus 200 micrograms.kg-1.min-1) or...

journal_title：Anesthesiology

authors： Ebert TJ,Muzi M,Berens R,Goff D,Kampine JP

更新日期：1992-05-01 00:00:00

abstract：:To study the effect of needle bevel direction on the incidence and severity of headache following inadvertent dural puncture occurring during the identification of the epidural space, the authors randomly assigned obstetric anesthesia residents to identify epidural space with the bevel of the epidural needle oriented ...

journal_title：Anesthesiology

authors： Norris MC,Leighton BL,DeSimone CA

更新日期：1989-05-01 00:00:00

abstract：BACKGROUND:Chloroprocaine has been associated with severe back pain after epidural anesthesia. Factors proposed to contribute to this problem are: 1) the preservative disodium ethylenediaminetetraacetic acid (EDTA), 2) large volumes of chloroprocaine, 3) low pH of chloroprocaine, and 4) local infiltration with chloropr...

journal_title：Anesthesiology

authors： Stevens RA,Urmey WF,Urquhart BL,Kao TC

更新日期：1993-03-01 00:00:00