Ketanserin pretreatment reverses alfentanil-induced muscle rigidity.

abstract：BACKGROUND:Kinins (e.g., bradykinin) acting through the constitutively expressed B2 and the injury-induced B1 receptors are involved in pain and hyperalgesia, as previously shown by use of receptor-selective antagonists and single-receptor knockout models. Because the overall contribution of kinins to painful processes...

journal_title：Anesthesiology

authors： Cayla C,Labuz D,Machelska H,Bader M,Schäfer M,Stein C

更新日期：2012-02-01 00:00:00

abstract：BACKGROUND:Human newborns, particularly those born before full term, are more susceptible to bacterial infections as a result of impaired host defense mechanisms. Compared with adults, circulating leukocytes from human newborns (preterm and full-term gestations) and newborn rabbits (full-term gestation) have low restin...

journal_title：Anesthesiology

authors： Ramamoorthy C,Kovarik WD,Winn RK,Harlan JM,Sharar SR

更新日期：1997-02-01 00:00:00

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

authors： Fink BR

更新日期：1989-05-01 00:00:00

abstract：BACKGROUND:Perioperative myocardial ischemia occurs in 20-40% of patients at risk for cardiac complications and is associated with a ninefold increase in risk for perioperative cardiac death, myocardial infarction, or unstable angina, and a twofold long-term risk. Perioperative atenolol administration reduces the risk ...

journal_title：Anesthesiology

authors： Wallace A,Layug B,Tateo I,Li J,Hollenberg M,Browner W,Miller D,Mangano DT

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND:Excessive bleeding often occurs during pediatric scoliosis surgery and is attributed to numerous factors, including accelerated fibrinolysis. The authors hypothesized that administration of tranexamic acid would reduce bleeding and transfusion requirements during scoliosis surgery. METHODS:Forty-four patien...

journal_title：Anesthesiology

authors： Sethna NF,Zurakowski D,Brustowicz RM,Bacsik J,Sullivan LJ,Shapiro F

更新日期：2005-04-01 00:00:00

abstract：BACKGROUND:The authors sought to determine whether subjects with pathophysiological conditions that are characterized by increased concentrations of aldosterone have increased susceptibility to the side effects of neonatal anesthesia with sevoflurane. METHODS:Postnatal day 4-20 (P4-P20) rats were exposed to sevofluran...

journal_title：Anesthesiology

authors： Cao W,Pavlinec C,Gravenstein N,Seubert CN,Martynyuk AE

更新日期：2012-10-01 00:00:00

abstract：:This study examined the efficacy of patient-controlled epidural analgesia (PCEA) during labor and compared the suitability of three different PCEA solutions. After establishing effective epidural analgesia with 12 ml of 0.25% bupivacaine, 72 parturients in active labor were randomly assigned to one of four groups: phy...

journal_title：Anesthesiology

authors： Lysak SZ,Eisenach JC,Dobson CE 2nd

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:Alveolar macrophages are a critical part of the defense against pulmonary infection. Thus the authors determined time-dependent changes in alveolar macrophage functions in patients having surgery who were anesthetized with isoflurane or propofol. METHODS:Patients anesthetized with propofol (n = 30) or isofl...

journal_title：Anesthesiology

authors： Kotani N,Hashimoto H,Sessler DI,Kikuchi A,Suzuki A,Takahashi S,Muraoka M,Matsuki A

更新日期：1998-11-01 00:00:00

abstract：:Interposition of activated carbon between a nitrogen analyzer needle valve and gas mixtures containing halothane, methoxyflurane, enflurane, or isoflurane eliminated the interfering effects of these agents, but added sampling delays. Placement of a carbon-filled Swinney adaptor in the sampling line between the needle ...

journal_title：Anesthesiology

authors： Gilmour IJ,Holland R,Craig DB

更新日期：1975-12-01 00:00:00

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 t...

journal_title：Anesthesiology

authors： Veselis RA,Reinsel RA,Feshchenko VA

更新日期：2001-10-01 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：:Reversal of the usual relationship between aortic and radial artery pressure can occur in patients following cardiopulmonary bypass. Radial systolic (and often radial mean) pressures were lower, relative to aortic pressure, after cardiopulmonary bypass than before bypass in all 18 patients studied. The systolic pressu...

journal_title：Anesthesiology

authors： Stern DH,Gerson JI,Allen FB,Parker FB

更新日期：1985-05-01 00:00:00

abstract：:Fentanyl is used as an analgesic in small doses (1-2 micrograms X kg-1) and as an anesthetic in very large doses (greater than 150 micrograms X kg-1). It has been demonstrated that the effects of fentanyl correlate with its concentrations in plasma. It is important, therefore, to know whether or not the pharmacokineti...

journal_title：Anesthesiology

authors： Murphy MR,Hug CC Jr,McClain DA

更新日期：1983-12-01 00:00:00

abstract：:The hemodynamic interactions of verapamil and isoflurane were studied in eight dogs. Left ventricular function was analyzed using a right heart bypass preparation to permit rigid hemodynamic control. Hemodynamic studies were performed at 0.7, 1.05, and 1.40% isoflurane before and during the maintenance of two stable l...

journal_title：Anesthesiology

authors： Kates RA,Kaplan JA,Guyton RA,Dorsey L,Hug CC Jr,Hatcher CR

更新日期：1983-08-01 00:00:00

abstract：BACKGROUND:Recent evidence indicates that vascular adenosine triphosphate-sensitive potassium (K(ATP)) channels in vascular smooth muscle cells are critical in the regulation of vascular tonus under both physiologic and pathophysiologic conditions. Studies of the interaction of volatile anesthetics with vascular K(ATP)...

journal_title：Anesthesiology

authors： Tanaka K,Kawano T,Nakamura A,Nazari H,Kawahito S,Oshita S,Takahashi A,Nakaya Y

更新日期：2007-05-01 00:00:00

abstract：:Binding of thiopental to proteins in plasma from healthy, cirrhotic, and uremic subjects was studied using equilibrium dialysis. In plasma from healthy volunteers 28.0 plus or minus 0.9 per cent of thiopental was unbound. In plasma from patients with hepatic disease 53.0 plus or minus 2.1 per cent was unbound, while i...

journal_title：Anesthesiology

authors： Ghoneim MM,Pandya H

更新日期：1975-05-01 00:00:00

abstract：BACKGROUND:It is well established that neuronal nicotinic acetylcholine receptors (nAChRs) are sensitive to inhalational anesthetics. The authors previously reported that halothane potently blocked alpha4beta2-type nAChRs of rat cortical neurons. However, the effect of isoflurane, which is widely used clinically, on nA...

journal_title：Anesthesiology

authors： Yamashita M,Mori T,Nagata K,Yeh JZ,Narahashi T

更新日期：2005-01-01 00:00:00

abstract：BACKGROUND:The cardiovascular side effects of volatile anesthetics are one of the chief causes of postoperative complications in children, and infants seem to be at the greatest risk for this. This study compared cardiovascular changes at equipotent concentrations of sevoflurane and halothane in infants. METHODS:Thirt...

journal_title：Anesthesiology

authors： Wodey E,Pladys P,Copin C,Lucas MM,Chaumont A,Carre P,Lelong B,Azzis O,Ecoffey C

更新日期：1997-10-01 00:00:00

abstract：BACKGROUND:Adaptive support ventilation can speed weaning after coronary artery surgery compared with protocolized weaning using other modes. There are no data to support this mode of weaning after cardiac valvular surgery. Furthermore, control group weaning times have been long, suggesting that the results may reflect...

journal_title：Anesthesiology

authors： Zhu F,Gomersall CD,Ng SK,Underwood MJ,Lee A

更新日期：2015-04-01 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：:Cognitive performance in postsurgical patients may be impaired by disturbances of normal circadian rhythm analogous to those produced by rapid transmeridian travel ("jet lag"). We therefore tested the hypothesis that isoflurane anesthesia alone produces a phase-delay in the human circadian temperature rhythm. We monit...

journal_title：Anesthesiology

authors： Sessler DI,Lee KA,McGuire J

更新日期：1991-12-01 00:00:00

abstract：BACKGROUND:It has been suggested that blood transfusion has an adverse effect on long-term health, mainly through immune modulation and tumor promotion. To further assess this concern, the authors have performed a prospective observational study with the hypothesis that after taking perioperative risk factors relevant ...

journal_title：Anesthesiology

authors： Weightman WM,Gibbs NM,Sheminant MR,Newman MA,Grey DE

更新日期：2009-08-01 00:00:00

abstract：BACKGROUND:In this open, randomized study, the pharmacokinetics, clinical efficacy, and safety of a 48-h continuous interscalene infusion of 2 mg/ml ropivacaine for postoperative pain relief were investigated in patients undergoing open major shoulder surgery. METHODS:An initial interscalene block with 30 ml ropivacai...

journal_title：Anesthesiology

authors： Ekatodramis G,Borgeat A,Huledal G,Jeppsson L,Westman L,Sjövall J

更新日期：2003-01-01 00:00:00

abstract：BACKGROUND:Awareness during anesthesia is foremost assessed with postoperative interviews, which may underestimate its incidence. On-line monitors such as the Bispectral Index and patient response to verbal command are not necessarily commonly used. This study investigated response to command during deep sedation (Bisp...

journal_title：Anesthesiology

authors： Kerssens C,Klein J,Bonke B

更新日期：2003-09-01 00:00:00

abstract：BACKGROUND:The minimum alveolar concentration (MAC) of volatile anesthetics is decreased during pregnancy, but MAC in the early postpartum period has not been reported. The aim of this study was to determine the MAC of isoflurane and to evaluate the relation between MAC and serum progesterone and beta-endorphin in pati...

journal_title：Anesthesiology

authors： Zhou HH,Norman P,DeLima LG,Mehta M,Bass D

更新日期：1995-06-01 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：:In a recent editorial, Kapur described perioperative nausea and vomiting as "the big 'little problem' following ambulatory surgery."257 Although the actual morbidity associated with nausea is relatively low in health outpatients, it should not be considered an unavoidable part of the perioperative experience. The avai...

journal_title：Anesthesiology

authors： Watcha MF,White PF

更新日期：1992-07-01 00:00:00

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

authors： Ewan EE,Martin TJ

更新日期：2011-03-01 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:Morphine-6-glucuronide (M-6-G), a major metabolite of morphine, is reported to be more potent than morphine when administered intrathecally; however, its efficiency remains under debate when administered intravenously. This study was designed to assess the analgesic efficiency of intravenous M-6-G for the tr...

journal_title：Anesthesiology

authors： Motamed C,Mazoit X,Ghanouchi K,Guirimand F,Abhay K,Lieutaud T,Bensaid S,Fernandez C,Duvaldestin P

更新日期：2000-02-01 00:00:00