Volatile anesthetics depress Ca2+ transients and glutamate release in isolated cerebral synaptosomes.

abstract：BACKGROUND:The abundance of a specific sodium channel subunit (SkM2) appeared to be altered in vitro in cell cultures from persons susceptible to malignant hyperthermia. This study sought to determine whether these findings are artifacts of cell culture or whether they may be relevant to malignant hyperthermia. METHOD...

journal_title：Anesthesiology

authors： Fletcher JE,Wieland SJ,Karan SM,Beech J,Rosenberg H

更新日期：1997-05-01 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:The anticonvulsant gabapentin, proven effective for neuropathic pain in two large, placebo-controlled clinical trials, is widely used for treatment of chronic pain. Preclinical studies have demonstrated analgesic and antiallodynic effects in models involving neuronal sensitization and nerve injury, without a...

journal_title：Anesthesiology

authors： Dirks J,Petersen KL,Rowbotham MC,Dahl JB

更新日期：2002-07-01 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:Propofol and alfentanil frequently are administered together for intravenous sedation. This study investigated pharmacokinetic and pharmacodynamic interactions between propofol and alfentanil, at sedative concentrations, with specific regard to effects on ventilation, analgesia, sedation, and nausea. METHOD...

journal_title：Anesthesiology

authors： Pavlin DJ,Coda B,Shen DD,Tschanz J,Nguyen Q,Schaffer R,Donaldson G,Jacobson RC,Chapman CR

更新日期：1996-01-01 00:00:00

abstract：:Dexmedetomidine (DMED) is a novel alpha 2 adrenergic agonist that has been shown to have potent analgesic and anesthetic sparing effects. This study was designed to investigate the effects of DMED, both alone and combined with isoflurane, on resting ventilation, the hypercapnic response, and the hypoxic response in do...

journal_title：Anesthesiology

authors： Nguyen D,Abdul-Rasool I,Ward D,Hsieh J,Kobayashi D,Hadlock S,Singer F,Bloor B

更新日期：1992-04-01 00:00:00

abstract：BACKGROUND:Frailty is associated with adverse postoperative outcomes, but it remains unclear which measure of frailty is best. This study compared two approaches: the Modified Frailty Index, which is a deficit accumulation model (number of accumulated deficits), and the Hopkins Frailty Score, which is a phenotype model...

journal_title：Anesthesiology

authors： Sonny A,Kurz A,Skolaris LA,Boehm L,Reynolds A,Cummings KC 3rd,Makarova N,Yang D,Sessler DI

更新日期：2020-01-01 00:00:00

abstract：:Perioperative myocardial ischemia is associated with an increased risk of perioperative myocardial infarction (PMI). Several attempts have been made to define intraoperative hemodynamic predictors of myocardial ischemia. In a canine preparation with coronary stenosis, a pressure rate quotient (PRQ = mean arterial pres...

journal_title：Anesthesiology

authors： Gordon MA,Urban MK,O'Connor T,Barash PG

更新日期：1991-05-01 00:00:00

abstract：BACKGROUND:Because tactile evaluation is the most common form of clinical neuromuscular monitoring, this study examines the relative efficacy of antagonizing residual block at different levels of recovery of the tactile train-of-four (TOF) response. METHODS:Anesthesia was induced in 64 adults with 2-5 microg/kg fentan...

journal_title：Anesthesiology

authors： Kirkegaard H,Heier T,Caldwell JE

更新日期：2002-01-01 00:00:00

abstract：:This study was designed to test the hypothesis that the volatile anesthetics directly affect cardiac contractile proteins. For this purpose, the effects of various anesthetic doses of halothane, enflurane, and isoflurane on myocardial calcium sensitivity and maximal calcium-activated force were examined in rat cardiac...

journal_title：Anesthesiology

authors： Murat I,Ventura-Clapier R,Vassort G

更新日期：1988-12-01 00:00:00

abstract：BACKGROUND:In spinal anesthesia, often a large interindividual variability in analgesic response is observed after administration of a certain fixed dose of anesthetic to a patient population. To improve therapeutic outcome it is important to characterize the variability in response by means of a population model (e.g....

journal_title：Anesthesiology

authors： Schnider TW,Minto CF,Bruckert H,Mandema JW

更新日期：1996-09-01 00:00:00

abstract：BACKGROUND:Intrathecal clonidine reduces tactile allodynia in animal models of neuropathic pain, and this effect is blocked by atropine. However, the role of tonic spinal cholinergic activity and its interaction with alpha2-adrenergic systems in normal and neuropathic conditions and to different sensory methods has not...

journal_title：Anesthesiology

authors： Paqueron X,Conklin D,Eisenach JC

更新日期：2003-07-01 00:00:00

abstract：:Intrathecally administered alpha 2-adrenergic agonists produce analgesia in humans but may also produce hypotension and bradycardia. To further characterize hemodynamic depression produced by intrathecally administered alpha 2-adrenergic agonists, clonidine (100-1,500 micrograms) was injected into the cervical, thorac...

journal_title：Anesthesiology

authors： Eisenach JC,Tong CY

更新日期：1991-04-01 00:00:00

abstract：BACKGROUND:Preservation of gut integrity has become a therapeutic goal to obviate bacterial translocation in the critically ill. The authors examined whether olprinone, a phosphodiesterase III inhibitor, protected functional and structural integrity of gut mucosa against acute progressive hypoxia. METHODS:Thirty-two a...

journal_title：Anesthesiology

authors： Satoh T,Morisaki H,Ai K,Kosugi S,Yamamoto M,Serita R,Kotake Y,Takeda J

更新日期：2003-06-01 00:00:00

abstract：BACKGROUND:Postherpetic neuralgia is one of the major complications of herpes zoster caused by the reactivation of varicella-zoster virus and is characterized by severe pain. The authors previously showed the association of a human major histocompatibility complex (MHC) haplotype with postherpetic neuralgia. This study...

journal_title：Anesthesiology

authors： Sato-Takeda M,Takasaki I,Takeda K,Sasaki A,Andoh T,Nojima H,Shiraki K,Kuraishi Y,Hanaoka K,Tokunaga K,Yabe T

更新日期：2006-05-01 00:00:00

abstract：BACKGROUND:Procedure times are important variables that often are included in studies of quality and efficiency. However, due to the need for costly chart review, most studies are limited to single-institution analyses. In this article, the authors describe how well the anesthesia claim from Medicare can estimate chart...

journal_title：Anesthesiology

authors： Silber JH,Rosenbaum PR,Zhang X,Even-Shoshan O

更新日期：2007-02-01 00:00:00

abstract：BACKGROUND:Our objective was to elucidate the direct effects of fentanyl and morphine on cardiac excitation-contraction coupling using individual, field-stimulated rat ventricular myocytes. METHODS:Freshly isolated myocytes were loaded with fura-2 and field stimulated (0.3 Hz) at 28 degrees C. Amplitude and timing of ...

journal_title：Anesthesiology

authors： Kanaya N,Zakhary DR,Murray PA,Damron DS

更新日期：1998-12-01 00:00:00

abstract：BACKGROUND:Postoperative nausea and vomiting (PONV) is a distressing problem after strabismus surgery. An inspired oxygen fraction has been reported to decrease PONV in patients after colon resection and to be more effective than ondansetron after gynecologic laparoscopy. Therefore, in a randomized, prospective, placeb...

journal_title：Anesthesiology

authors： Treschan TA,Zimmer C,Nass C,Stegen B,Esser J,Peters J

更新日期：2005-07-01 00:00:00

abstract：:Effects of lidocaine on arterial pressure, heart rate and electrocortical activity were studied in nine fetal lambs at 0.77 to 0.92 gestation (116 to 138 days of gestation; term in sheep is 150 days). Lidocaine was administered into a fetal femoral vein either as a continuous infusion or as a bolus injection. Epilepti...

journal_title：Anesthesiology

authors： Teramo K,Benowitz N,Heymann MA,Rudolph AM

更新日期：1976-02-01 00:00:00

abstract：BACKGROUND:Lamotrigine is a sodium channel blocker that inhibits the neuronal release of glutamate. Systemic administration of lamotrigine induces analgesia in short- and long-term models of hyperalgesia in rats. Considering the key role of N-methyl-D-aspartate receptors in the sensitization of dorsal horn neurons that...

journal_title：Anesthesiology

authors： Klamt JG

更新日期：1998-02-01 00:00:00

abstract：BACKGROUND:The authors' objective was to assess the role of protein kinase C (PKC) and nitric oxide synthase (NOS) in mediating the effects of propofol on diabetic cardiomyocyte contractility, intracellular free Ca2+ concentration ([Ca2+]i), and myofilament Ca2+ sensitivity. METHODS:Freshly isolated ventricular myocyt...

journal_title：Anesthesiology

authors： Wickley PJ,Shiga T,Murray PA,Damron DS

更新日期：2006-05-01 00:00:00

abstract：BACKGROUND:The purpose of this study was to determine whether either regional anesthesia (RA) or general anesthesia (GA) provided the best analgesia with the fewest adverse effects up to 2 weeks after ambulatory hand surgery. METHODS:Patients undergoing ambulatory hand surgery were randomly assigned to RA (axillary br...

journal_title：Anesthesiology

authors： McCartney CJ,Brull R,Chan VW,Katz J,Abbas S,Graham B,Nova H,Rawson R,Anastakis DJ,von Schroeder H

更新日期：2004-08-01 00:00:00

abstract：BACKGROUND:Mutations in the ryanodine type 1 receptor (RyR1) are causative for malignant hyperthermia. Studies in human B lymphocytes have shown that measurement of RyR1-mediated intracellular Ca(2+) (Ca(2+)(i)) release can differentiate between normal and malignant hyperthermia-susceptible individuals. The authors hav...

journal_title：Anesthesiology

authors： McKinney LC,Butler T,Mullen SP,Klein MG

更新日期：2006-06-01 00:00:00

abstract：BACKGROUND:Controversy exists regarding the effectiveness of propofol to prevent postoperative nausea and vomiting. This prospective, randomized, single-blinded study was designed to evaluate the antiemetic effectiveness of 0.5 mg/kg propofol when administered intravenously after sevoflurane- compared with desflurane-b...

journal_title：Anesthesiology

authors： Song D,Whitten CW,White PF,Yu SY,Zarate E

更新日期：1998-10-01 00:00:00

abstract：BACKGROUND:The extent to which isoflurane anesthesia alters systemic vascular regulation has received considerable attention. In contrast, the pulmonary vascular effects of isoflurane have not been elucidated. Our initial objective was to investigate the net effect of isoflurane on the baseline left pulmonary vascular ...

journal_title：Anesthesiology

authors： Lennon PF,Murray PA

更新日期：1995-03-01 00:00:00

abstract：:Evidence of developmental toxicity of clinically used nondepolarizing muscle relaxants was sought in rat embryos grown in culture. Embryos were explanted at 8 AM on day 9 of gestation (presomite stage, plug day = day 0), and were cultured in rotating bottles with medium containing various concentrations of d-tubocurar...

journal_title：Anesthesiology

authors： Fujinaga M,Baden JM,Mazze RI

更新日期：1992-06-01 00:00:00

abstract：BACKGROUND:Volatile anesthetics inhibit presynaptic voltage-gated sodium channels to reduce neurotransmitter release, but their effects on excitatory neuron excitability by sodium current inhibition are unclear. The authors hypothesized that inhibition of transient and persistent neuronal sodium currents by the volatil...

journal_title：Anesthesiology

authors： Zhao W,Zhang M,Liu J,Liang P,Wang R,Hemmings HC,Zhou C

更新日期：2019-07-01 00:00:00

abstract：BACKGROUND:High-frequency oscillatory ventilation (HFOV) at higher frequencies minimizes the tidal volume. However, whether increased frequencies during HFOV can reduce ventilator-induced lung injury remains unknown. METHODS:After the induction of acute respiratory distress syndrome in the model by repeated lavages, 2...

journal_title：Anesthesiology

authors： Liu S,Yi Y,Wang M,Chen Q,Huang Y,Liu L,Xie J,Zhou D,Qiu H

更新日期：2013-08-01 00:00:00

abstract：BACKGROUND:Basal cytotoxic activity of NK cells, a subtype of lymphocytes involved in the nonspecific immune response to viruses, tumors, and some bacteria, is altered in the postoperative period. The current study examines the effects of halothane and isoflurane on interferon-induced stimulation of NK cell cytotoxicit...

journal_title：Anesthesiology

authors： Markovic SN,Knight PR,Murasko DM

更新日期：1993-04-01 00:00:00

abstract：BACKGROUND:The effects of anesthetics on ischemia-induced ventricular arrhythmias remain poorly studied. This study investigated the effects of propofol and sevoflurane on the survival rate and morbidity as a result of ventricular arrhythmias, and defined a possible mechanism for the arrhythmogenic properties of anesth...

journal_title：Anesthesiology

authors： Hirata N,Kanaya N,Kamada N,Kimura S,Namiki A

更新日期：2009-01-01 00:00:00