Optimization of the radioimmunoassays for measuring fentanyl and alfentanil in human serum.

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:Perioperative beta-blockade has been shown to improve long-term cardiac outcome in noncardiac surgical patients. A possible mechanism for the reduced risk of perioperative myocardial infarction is the attenuation of the excitotoxic effects of catecholamine surges by beta-blockade. It was hypothesized that be...

journal_title：Anesthesiology

authors： Zaugg M,Tagliente T,Lucchinetti E,Jacobs E,Krol M,Bodian C,Reich DL,Silverstein JH

更新日期：1999-12-01 00:00:00

abstract：BACKGROUND:Perfluorocarbon (PFC) liquids are known to improve gas exchange and pulmonary function in various models of acute respiratory failure. Vaporization has been recently reported as a new method of delivering PFC to the lung. Our aim was to study the effect of PFC vapor on the ventilation/perfusion (VA/Q) matchi...

journal_title：Anesthesiology

authors： Hübler M,Souders JE,Shade ED,Polissar NL,Schimmel C,Hlastala MP

更新日期：2001-12-01 00:00:00

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

authors： Lee C,de Silva AJ

更新日期：1979-03-01 00:00:00

abstract：BACKGROUND:Indirect evidence supports a role of spinal cholinergic neurons in tonically reducing response to noxious mechanical stimulation and in effecting analgesia from alpha2-adrenergic agonists. This study directly assessed the role of cholinergic neurons in regulating the level of mechanical allodynia and in part...

journal_title：Anesthesiology

authors： Paqueron X,Li X,Bantel C,Tobin JR,Voytko ML,Eisenach JC

更新日期：2001-06-01 00:00:00

abstract：:This study was performed to determine if direct arterial dilating actions of propofol contribute to the drug's hypotensive actions. The effects of propofol were compared with those of thiopental on isolated vascular ring preparations from rat thoracic aorta and pulmonary artery. Thoracic aortic ring responses were eva...

journal_title：Anesthesiology

authors： Park WK,Lynch C 3rd,Johns RA

更新日期：1992-11-01 00:00:00

abstract：BACKGROUND:Only limited data exist comparing differences in sensory function and responses to neural blockade in infant and adult rats. Therefore, the authors sought (1) to compare baseline thermal, proprioceptive, and postural responses in infant, adolescent, and adult rats; and (2) to compare the effects of sciatic n...

journal_title：Anesthesiology

authors： Hu D,Hu R,Berde CB

更新日期：1997-04-01 00:00:00

abstract：BACKGROUND:The general anesthetics, isoflurane and sevoflurane, cause developmental abnormalities in neonatal animal models via incompletely understood mechanisms. Despite many common molecular targets, isoflurane and sevoflurane exhibit substantial differences in their actions. The authors sought to determine whether ...

journal_title：Anesthesiology

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

更新日期：2013-08-01 00:00:00

abstract：BACKGROUND:Acute respiratory distress syndrome (ARDS) is a devastating condition with an estimated mortality exceeding 30%. There are data suggesting risk factors for ARDS development in high-risk populations, but few data are available in lower incidence populations. Using risk-matched analysis and a combination of cl...

journal_title：Anesthesiology

authors： Blum JM,Stentz MJ,Dechert R,Jewell E,Engoren M,Rosenberg AL,Park PK

更新日期：2013-01-01 00:00:00

abstract：BACKGROUND:Transcranial motor-evoked potentials (TcMEPs) monitor spinal cord motor tract integrity. Using a swine model, the authors studied the effects of vasodilatory hypotension, hemorrhage, and various resuscitation efforts on TcMEP responses. METHODS:Twelve pigs were anesthetized with constant infusions of propof...

journal_title：Anesthesiology

authors： Lieberman JA,Feiner J,Lyon R,Rollins MD

更新日期：2013-11-01 00:00:00

abstract：:The formation of acute edema in the tracheobronchial mucosa following local instillation of hydrochloric acid or gastric juice was studied in rats. Protein extravasation using the Evans blue technique was measured and used to indicate edema formation. A pH dependent Evans blue extravasation was observed whereby pH 2 p...

journal_title：Anesthesiology

authors： Martling CR,Lundberg JM

更新日期：1988-03-01 00:00:00

abstract：BACKGROUND:Phantom and stump pains, common sequelae of limb amputations, are significant impediments to rehabilitation of amputees. The pathophysiology and optimal treatment of postamputation pain states are unclear. While stump pain may result from neuromas in the stump, phantom pain is thought to be related to cortic...

journal_title：Anesthesiology

authors： Wu CL,Tella P,Staats PS,Vaslav R,Kazim DA,Wesselmann U,Raja SN

更新日期：2002-04-01 00:00:00

abstract：BACKGROUND:Chronic pain remains a significant challenge for modern health care as its pathologic mechanisms are largely unknown and preclinical animal models suffer from limitations in assessing this complex subjective experience. However, human brain neuroimaging techniques enable the assessment of functional and neur...

journal_title：Anesthesiology

authors： Harris RE,Napadow V,Huggins JP,Pauer L,Kim J,Hampson J,Sundgren PC,Foerster B,Petrou M,Schmidt-Wilcke T,Clauw DJ

更新日期：2013-12-01 00:00:00

abstract：BACKGROUND:Acute pancreatitis has been linked to intestinal barrier dysfunction and systemic inflammatory response with high mortality. Thoracic epidural analgesia improves intestinal perfusion. The authors hypothesized that thoracic epidural analgesia influences microcirculation injury, inflammatory response, and outc...

journal_title：Anesthesiology

authors： Freise H,Lauer S,Anthonsen S,Hlouschek V,Minin E,Fischer LG,Lerch MM,Van Aken HK,Sielenkämper AW

更新日期：2006-08-01 00:00:00

abstract：BACKGROUND:Alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA)-type glutamate receptors mediate fast excitatory synaptic transmission in the central nervous system. Although barbiturates have been shown to suppress the AMPA receptor-mediated responses, it is unclear whether this effect contributes to the a...

journal_title：Anesthesiology

authors： Kamiya Y,Andoh T,Furuya R,Hattori S,Watanabe I,Sasaki T,Ito H,Okumura F

更新日期：1999-06-01 00:00:00

abstract：BACKGROUND:The mechanism of the protective actions of volatile anesthetics in ischemic myocardium has not been clearly elucidated. The role of myocardial adenosine triphosphate-regulated potassium (KATP) channels in isoflurane-induced enhancement of recovery of regional contractile function after multiple brief occlusi...

journal_title：Anesthesiology

authors： Kersten JR,Schmeling TJ,Hettrick DA,Pagel PS,Gross GJ,Warltier DC

更新日期：1996-10-01 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：BACKGROUND:The brain is assumed to be the site of anesthetic action, but anesthetics have effects elsewhere, such as the spinal cord. A preferentially anesthetized goat brain model was used to determine the importance of anesthetic action in the brain. METHODS:Six goats were anesthetized with isoflurane; after trachea...

journal_title：Anesthesiology

authors： Antognini JF,Schwartz K

更新日期：1993-12-01 00:00:00

abstract：:The role of the renin--angiotensin system in the maintenance of blood pressure during halothane anesthesia and sodium nitroprusside (SNP)-induced hypotension was evaluated. Control rats received halothane anesthesia (1 MAC) for one hour, followed by SNP infusion, 40 microgram/kg/min, for 30 min, followed by a 30-min r...

journal_title：Anesthesiology

authors： Delaney TJ,Miller ED Jr

更新日期：1980-02-01 00:00:00

abstract：BACKGROUND:Studies on receptor knockout mice have so far shown that of the three alpha2-adrenoceptor subtypes, the alpha(2A) adrenoceptor has a major role in mediating the powerful central analgesia induced by synthetic alpha2-adrenoceptor agonists. However, because a knockout of the gene for the alpha(2A) adrenoceptor...

journal_title：Anesthesiology

authors： Mansikka H,Lähdesmäki J,Scheinin M,Pertovaara A

更新日期：2004-07-01 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：BACKGROUND:Volatile anesthetics (VAs) have been found to induce a delayed protective response called preconditioning to subsequent hypoxic/ischemic injury. VA preconditioning has been primarily studied in canine and rodent heart. A more genetically tractable model of VA preconditioning would be extremely useful. Here, ...

journal_title：Anesthesiology

authors： Jia B,Crowder CM

更新日期：2008-03-01 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：:This study was performed to determine the potency of succinylcholine using the single-dose technique, and to test the ability of the cumulative dose technique for generating dose-response data. Thirty-eight adult patients received single doses (n = 18), cumulative doses (n = 10), or cumulative doses of succinylcholine...

journal_title：Anesthesiology

authors： Smith CE,Donati F,Bevan DR

更新日期：1988-09-01 00:00:00

abstract：BACKGROUND:Patients who receive a combination of a benzodiazepine and an opioid for conscious sedation are at risk for developing respiratory depression. While flumazenil effectively antagonizes the respiratory depression associated with a benzodiazepine alone, its efficacy in the presence of both a benzodiazepine and ...

journal_title：Anesthesiology

authors： Gross JB,Blouin RT,Zandsberg S,Conard PF,Häussler J

更新日期：1996-10-01 00:00:00

abstract：:Using magnetic resonance spectroscopy, the authors tested whether cerebral concentrations of inhaled anesthetics do not increase proportionately at inspired concentrations exceeding 3% 1) because anesthetics bind to and saturate specific sites in the brain or 2) because anesthetic-induced depression of ventilation lim...

journal_title：Anesthesiology

authors： Lockhart SH,Cohen Y,Yasuda N,Kim F,Litt L,Eger EI 2nd,Chang LH,James T

更新日期：1990-09-01 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:Angiotensin-converting enzyme inhibitors and angiotensin receptor blockers improve cognitive function. The authors therefore tested the primary hypothesis that preoperative use of angiotensin inhibitors is associated with less delirium in critical care patients. Post hoc, the association between postoperativ...

journal_title：Anesthesiology

authors： Farag E,Liang C,Mascha EJ,Argalious MY,Ezell J,Maheshwari K,Esa WAS,Troianos CA,Sessler DI

更新日期：2020-07-01 00:00:00

abstract：BACKGROUND:The authors hypothesized that low tidal volume (VT) would minimize ventilator-induced lung injury regardless of the degree of mechanical power. The authors investigated the impact of power, obtained by different combinations of VT and respiratory rate (RR), on ventilator-induced lung injury in experimental m...

journal_title：Anesthesiology

authors： Santos RS,Maia LA,Oliveira MV,Santos CL,Moraes L,Pinto EF,Samary CDS,Machado JA,Carvalho AC,Fernandes MVS,Martins V,Capelozzi VL,Morales MM,Koch T,Gama de Abreu M,Pelosi P,Silva PL,Rocco PRM

更新日期：2018-06-01 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