Postoperative pain control with methadone: influence of supplementary methadone doses and blood concentration--response relationships.

abstract：BACKGROUND:Dyspnea, like pain, can cause major suffering in intensive care unit (ICU) patients. Its evaluation relies on self-report; hence, the risk of being overlooked when verbal communication is impaired. Observation scales incorporating respiratory and behavioral signs (respiratory distress observation scales [RDO...

journal_title：Anesthesiology

authors： Persichini R,Gay F,Schmidt M,Mayaux J,Demoule A,Morélot-Panzini C,Similowski T

更新日期：2015-10-01 00:00:00

abstract：BACKGROUND:The long-term use of opioids for analgesia carries significant risk for tolerance, addiction, and diversion. These adverse effects are largely mediated by μ-opioid receptors in the central nervous system. Based on the authors' previous observation that morphine and δ-opioid receptor agonists synergize in spi...

journal_title：Anesthesiology

authors： Bruce DJ,Peterson CD,Kitto KF,Akgün E,Lazzaroni S,Portoghese PS,Fairbanks CA,Wilcox GL

更新日期：2019-09-01 00:00:00

abstract：BACKGROUND:Volatile anesthetics depress left ventricular contractile function by altering voltage-dependent slow calcium (Ca2+) channel activity in the sarcolemmal membrane. This investigation examined the left ventricular systolic and diastolic mechanical effects of the dihydropyridine Ca2+ channel antagonist nifedipi...

journal_title：Anesthesiology

authors： Pagel PS,Hettrick DA,Warltier DC

更新日期：1994-07-01 00:00:00

abstract：BACKGROUND:Evidence concerning the concentrations of volatile anesthetics that prevent learning and recall is limited. Epinephrine is believed to enable learning during anesthesia. We investigated the effects of isoflurane and its interaction with epinephrine on learning and subsequent retention of the rabbit's classic...

journal_title：Anesthesiology

authors： el-Zahaby HM,Ghoneim MM,Johnson GM,Gormezano I

更新日期：1994-07-01 00:00:00

abstract：BACKGROUND:Recent studies have questioned the importance of the gravitational model of pulmonary perfusion. Because low levels of positive end-expiratory pressure (PEEP) are commonly used during anesthesia, the authors studied the distribution of pulmonary blood flow with low levels of PEEP using a high spatial resolut...

journal_title：Anesthesiology

authors： Kallas HJ,Domino KB,Glenny RW,Anderson EA,Hlastala MP

更新日期：1998-05-01 00:00:00

abstract：:We performed a prospective randomized controlled trial to assess the efficacy of a chlorhexidine dressing in reducing the microbial flora at the insertion site of epidural catheters. These catheters were used for acute pain management and were dressed either by a standardized method or with a CHX/urethane sponge compo...

journal_title：Anesthesiology

authors： Shapiro JM,Bond EL,Garman JK

更新日期：1990-10-01 00:00:00

abstract：BACKGROUND:Few data support an association between blood pressure variability and clinical outcomes during cardiac surgery. We tested the hypothesis that intraoperative systolic blood pressure variability outside a targeted blood pressure range predicts 30-day mortality in patients undergoing cardiac surgery. METHODS:...

journal_title：Anesthesiology

authors： Aronson S,Stafford-Smith M,Phillips-Bute B,Shaw A,Gaca J,Newman M,Cardiothoracic Anesthesiology Research Endeavors.

更新日期：2010-08-01 00:00:00

abstract：:The authors studied the influence of locally administered isoflurane anesthesia on the pulmonary vascular response to regional alveolar hypoxia (hypoxic pulmonary vasoconstriction [HPV]) over a range of cardiac outputs (COs) in seven mechanically ventilated, closed-chest dogs. The right lung was ventilated with 100% O...

journal_title：Anesthesiology

authors： Domino KB,Borowec L,Alexander CM,Williams JJ,Chen L,Marshall C,Marshall BE

更新日期：1986-04-01 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：:The authors determined the thiopental dose needed for satisfactory induction in ten neonates, 0-14 days of age, and 20 infants, 1-6 months of age. A single iv bolus of thiopental was given. Thirty seconds after injection the anesthesia mask was applied and the response was observed during the following 30 s while the ...

journal_title：Anesthesiology

authors： Westrin P,Jonmarker C,Werner O

更新日期：1989-09-01 00:00:00

abstract：:The present study examines the postulate that isoflurane, in contrast to halothane, causes redistribution of blood flow away from an ischemic myocardial region through vasodilation of adjacent normally perfused myocardium. The study was performed in open-chest dogs anesthetized with fentanyl; ischemia was induced by o...

journal_title：Anesthesiology

authors： Moore PG,Kien ND,Reitan JA,White DA,Safwat AM

更新日期：1991-11-01 00:00:00

abstract：BACKGROUND:The mechanisms that underlie the supraspinal central nervous system effects of systemic lidocaine are poorly understood and not solely explained by Na(+) channel blockade. Among other potential targets is the hyperpolarization-activated cation current, I(h), which is blocked by lidocaine in peripheral neuron...

journal_title：Anesthesiology

authors： Putrenko I,Schwarz SK

更新日期：2011-10-01 00:00:00

abstract：:The effect of neuromuscular blockade with vecuronium on the hemodynamic responses to a noxious stimulus was investigated in male Sprague-Dawley rats. The rats were anesthetized with either halothane (group 1, n = 10), or isoflurane (group 2, n = 10). The maximum values for heart rate and mean arterial pressure during ...

journal_title：Anesthesiology

authors： Gibbs NM,Larach DR,Schuler HG

更新日期：1989-08-01 00:00:00

abstract：BACKGROUND:The potential benefit of propofol dose regimens that use physiologic pharmacokinetic modeling to target the brain has been demonstrated in animals, but no data are available on the rate of propofol distribution to the brain in humans. This study measured the brain uptake of propofol in humans and the simulta...

journal_title：Anesthesiology

authors： Ludbrook GL,Visco E,Lam AM

更新日期：2002-12-01 00:00:00

abstract：:The relationship between the extent of preoperative beta-adrenoceptor blockade and the hemodynamic properties of dobutamine was investigated in patients scheduled for elective myocardial revascularization during isoflurane-nitrous oxide anesthesia. Twenty patients had been treated with beta-adrenoceptor blocking drugs...

journal_title：Anesthesiology

authors： Tarnow J,Komar K

更新日期：1988-06-01 00:00:00

abstract：BACKGROUND:Neurally adjusted ventilatory assist (NAVA) is a new mode of mechanical ventilation that delivers ventilatory assist in proportion to the electrical activity of the diaphragm. This study aimed to compare the ventilatory and gas exchange effects between NAVA and pressure support ventilation (PSV) during the w...

journal_title：Anesthesiology

authors： Coisel Y,Chanques G,Jung B,Constantin JM,Capdevila X,Matecki S,Grasso S,Jaber S

更新日期：2010-10-01 00:00:00

abstract：:Exposure of resting rat diaphragm for one hour in vitro to halothane (1-1.5, 2-2.5 and 4-4.5 per cent in oxygen) produced significant alterations of intracellular glucose disposition. Glycolysis (as measured by lactate production) increased, while glycogen formation was inhibited in a dose-related fashion. Net glucose...

journal_title：Anesthesiology

authors： Rosenberg H,Haugaard N,Haugaard ES

更新日期：1977-05-01 00:00:00

abstract：BACKGROUND:Tight perioperative control of blood glucose improves the outcome of diabetic patients undergoing cardiac surgery. Because stress response and cardiopulmonary bypass can induce profound hyperglycemia, intraoperative glycemic control may become difficult. The authors undertook a prospective cohort study to de...

journal_title：Anesthesiology

authors： Ouattara A,Lecomte P,Le Manach Y,Landi M,Jacqueminet S,Platonov I,Bonnet N,Riou B,Coriat P

更新日期：2005-10-01 00:00:00

abstract：BACKGROUND:In cardiac patients, pulmonary capillary wedge pressure (PCWP) is estimated using color M-mode Doppler study of left ventricular filling and Doppler tissue imaging. The goal of this study was to assess whether echocardiography accurately estimates PCWP in critically ill patients. METHODS:Sixty ventilated pa...

journal_title：Anesthesiology

authors： Bouhemad B,Nicolas-Robin A,Benois A,Lemaire S,Goarin JP,Rouby JJ

更新日期：2003-05-01 00:00:00

abstract：BACKGROUND:Systemic magnesium has been used to minimize postoperative pain with conflicting results by clinical studies. It remains unknown whether the administration of perioperative systemic magnesium can minimize postoperative pain. The objective of the current investigation was to evaluate the effect of systemic ma...

journal_title：Anesthesiology

authors： De Oliveira GS Jr,Castro-Alves LJ,Khan JH,McCarthy RJ

更新日期：2013-07-01 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：BACKGROUND:Resiniferatoxin is a potent capsaicin analog. Intrathecal administration leads to selective, prolonged opening of the transient receptor potential V1 ion channel, which is localized mainly to C-fiber primary afferent nociceptive sensory neurons. Following work in laboratory animals, the authors explored the ...

journal_title：Anesthesiology

authors： Brown DC,Iadarola MJ,Perkowski SZ,Erin H,Shofer F,Laszlo KJ,Olah Z,Mannes AJ

更新日期：2005-11-01 00:00:00

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

authors： Buffington CW

更新日期：1986-05-01 00:00:00

abstract：BACKGROUND:Pain following thoracotomy can persist for years with an undetermined impact on quality of life. Factors hypothesized to modulate this painful experience include analgesic regimen, gender, and type of incision. METHODS:A total of 157 generally healthy patients of both genders scheduled for segmentectomy, lo...

journal_title：Anesthesiology

authors： Ochroch EA,Gottschalk A,Augostides J,Carson KA,Kent L,Malayaman N,Kaiser LR,Aukburg SJ

更新日期：2002-11-01 00:00:00

abstract：:The treatment of venous air embolism by aspiration from central venous catheters is well established. However, some anesthesiologists prefer to use a pulmonary artery catheter to monitor patients undergoing a neurosurgical procedure in the sitting position. While offering certain advantages, pulmonary artery catheters...

journal_title：Anesthesiology

authors： Bowdle TA,Artru AA

更新日期：1988-01-01 00:00:00

abstract：:The metabolism of alfentanil was studied in three healthy subjects after a 1-h infusion of 2.5 mg alfentanil-3H. One of the subjects was a poor hydroxylator of debrisoquine. Pharmacokinetic parameters were similar in the three subjects and were in the same range as those reported for volunteers. The majority of the ad...

journal_title：Anesthesiology

authors： Meuldermans W,Van Peer A,Hendrickx J,Woestenborghs R,Lauwers W,Heykants J,Vanden Bussche G,Van Craeyvelt H,Van der Aa P

更新日期：1988-10-01 00:00:00

abstract：BACKGROUND:The observation that peripheral trauma causes enhanced spinal neuronal excitability has provided the scientific rationale for the concept of "pre-emptive analgesia." The premise has been that only noxious stimuli cause sensitization in sensory pathways, but this premise has not been tested in the conscious s...

journal_title：Anesthesiology

authors： Herrero JF,Headley PM

更新日期：1995-01-01 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：:The authors have previously attributed the mechanism for the 50-67% decrease in the required dose of thiopental for induction of anesthesia in aged human patients to a decrease in the initial distribution volume for thiopental. Using a larger group of patients and volunteers studied in the laboratory, the authors have...

journal_title：Anesthesiology

authors： Stanski DR,Maitre PO

更新日期：1990-03-01 00:00:00

abstract：:Minute ventilation (VE), tidal volume (VT), carbon dioxide elimination (VCO2), and end-tidal (PETCO2) and arterial CO2 tensions (PaCO2) were measured in 39 anesthetized infants and children with body weights ranging from 3.1 to 31 kg. Eighteen children had normal cardiopulmonary function, seven had acyanotic congenita...

journal_title：Anesthesiology

authors： Lindahl SG,Yates AP,Hatch DJ

更新日期：1987-02-01 00:00:00