Pulmonary shunt and cardiovascular responses to CPAP during nitroprusside-induced hypotension.

abstract：BACKGROUND:Oxidation of propofol to 4-hydroxypropofol represents a significant pathway in the metabolism of this anesthetic agent in humans. The aim of this study was to identify the principal cytochrome P-450 (CYP) isoforms mediating this biotransformation. METHODS:Propofol hydroxylation activities and enzyme kinetic...

journal_title：Anesthesiology

authors： Court MH,Duan SX,Hesse LM,Venkatakrishnan K,Greenblatt DJ

更新日期：2001-01-01 00:00:00

abstract：:The time course of changes in brain electrical activity during halothane anesthesia was examined in 12 malignant hyperthermia-susceptible (MHS) and 14 normal (nMHS) swine. Power densities in selected frequency bands were calculated from the electroen-cephalogram (EEG). EEG and systemic variables were determined over a...

journal_title：Anesthesiology

authors： Kochs E,Hoffman WE,Roewer N,Schulte am Esch J

更新日期：1990-12-01 00:00:00

abstract：BACKGROUND:In children with a history of significant obstructive sleep apnea who undergo adenotonsillectomy, postsurgical administration of opiates has been alleged to be associated with an increased risk for respiratory complications, including respiratory depression. The authors hypothesize that this association is d...

journal_title：Anesthesiology

authors： Moss IR,Brown KA,Laferrière A

更新日期：2006-10-01 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：:The safety and efficacy of epidural morphine injected into the caudal space for control of postoperative pain following open cardiac surgery in children was studied. Thirty-two children between the ages of 2-12 yr for whom early postoperative tracheal extubation was anticipated were randomly assigned to control and st...

journal_title：Anesthesiology

authors： Rosen KR,Rosen DA

更新日期：1989-03-01 00:00:00

abstract：BACKGROUND:Airway pressure-release ventilation provides ventilation comparable to controlled mechanical ventilation (CMV), but with lower peak airway pressures and less dead-space ventilation. To obtain these advantages for patients administered general anesthesia, the authors (1) designed a mode similar to airway pres...

journal_title：Anesthesiology

authors： Bratzke E,Downs JB,Smith RA

更新日期：1998-08-01 00:00:00

abstract：BACKGROUND:In an effort to measure and improve the quality of perioperative care, the Surgical Care Improvement Project (SCIP) was introduced in 2003. The SCIP guidelines are evidence-based process measures designed to reduce preventable morbidity, but it remains to be determined whether SCIP-measure compliance is asso...

journal_title：Anesthesiology

authors： Scott AV,Stonemetz JL,Wasey JO,Johnson DJ,Rivers RJ,Koch CG,Frank SM

更新日期：2015-07-01 00:00:00

abstract：BACKGROUND:Halothane and isoflurane have been shown to differentially effect mechanisms of contraction in working myocardial fibers. The aim of this study was to compare effects of halothane and isoflurane on contractile force (CF) and Ca2+ transients in canine cardiac Purkinje fiber preparations. METHODS:Fiber prepar...

journal_title：Anesthesiology

authors： Stowe DF,Sprung J,Turner LA,Kampine JP,Bosnjak ZJ

更新日期：1994-06-01 00:00:00

abstract：:Four volunteers judged eight levels of thermal stimuli induced by a Hardy dolorimeter, varying in intensity from extremely painful to a low level seldom even perceived. Half of the 406 stimuli were applied during acupuncture and half either before insertion or after removal of the needles. The experimental design mini...

journal_title：Anesthesiology

authors： Day RL,Kitahata LM,Kao FF,Motoyama EK,Hardy JD

更新日期：1975-11-01 00:00:00

abstract：:The effect of enflurane (2% and 4% inspired) on left ventricular (LV) function were examined in chronically instrumented dogs, both intact and after isolation of their hearts and lungs from the systemic circulation. Enflurane in the intact dogs increased heart rate (32 +/- 5% with 2% and 41 +/- 4% with 4%) and elicite...

journal_title：Anesthesiology

authors： Zimpfer M,Gilly H,Krösl P,Schlag G,Steinbereithner K

更新日期：1983-02-01 00:00:00

abstract：BACKGROUND:Dynorphin A in the spinal cord is considered to contribute to nociceptive stimuli. However, it has not yet been determined whether activation of the spinal dynorphinergic system under nociceptive stimuli plays a role in direct acceleration of the ascending nociceptive pathway. In this study, the authors inve...

journal_title：Anesthesiology

authors： Taketa Y,Niikura K,Kobayashi Y,Furuya M,Shimizu T,Narita M,Imai S,Kuzumaki N,Maitani Y,Yamazaki M,Inada E,Iseki M,Suzuki T,Narita M

更新日期：2010-02-01 00:00:00

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: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：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:In vitro, halothane appears to affect the role played by nitric oxide in the regulation of vascular tone and cardiac function. In vivo, the results of the interactions between halothane and the nitric oxide pathway remain controversial. The authors investigated the effects of halothane on the cardiac and reg...

journal_title：Anesthesiology

authors： Chelly JE,Doursout MF,Lechevalier T,Liang YY,Chelly F,Hartley C,Kilbourn RG

更新日期：1996-07-01 00:00:00

abstract：BACKGROUND:Hydroxyethyl starch (HES) 130/0.4 may impair blood coagulation less than other HES solutions and, thus, may be used at larger doses without increasing the risk of postoperative bleeding. This study tested the hypothesis that volume replacement with 6% HES 130/0.4 at a dose of up to 50 ml/kg does not increase...

journal_title：Anesthesiology

authors： Kasper SM,Meinert P,Kampe S,Görg C,Geisen C,Mehlhorn U,Diefenbach C

更新日期：2003-07-01 00:00:00

abstract：BACKGROUND:The Atenolol study of 1996 provided evidence that perioperative β-blockade reduced postsurgical mortality. In 1998, the indications for perioperative β-blockade were codified as the Perioperative Cardiac Risk Reduction protocol and implemented at the San Francisco Veterans Affairs Medical Center. The current...

journal_title：Anesthesiology

authors： Wallace AW,Au S,Cason BA

更新日期：2011-04-01 00:00:00

abstract：BACKGROUND:Malignant hyperthermia is associated with mutations within the gene encoding the skeletal muscle ryanodine receptor, the calcium channel that releases Ca from sarcoplasmic reticulum stores triggering muscle contraction, and other metabolic activities. More than 200 variants have been identified in the ryanod...

journal_title：Anesthesiology

authors： Sato K,Pollock N,Stowell KM

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND:Perfluorocarbon liquids are being used experimentally and in clinical trials for the treatment of acute lung injury. Their resemblance to inhaled anesthetic agents suggests the possibility of application by vaporization. The authors' aim was to develop the technical means for perfluorocarbon vaporization and...

journal_title：Anesthesiology

authors： Bleyl JU,Ragaller M,Tschö U,Regner M,Kanzow M,Hübler M,Rasche S,Albrecht M

更新日期：1999-08-01 00:00:00

abstract：BACKGROUND:Cortical acetylcholine originates in the basal forebrain and is essential for maintaining normal cognition and arousal. Morphine impairs these cholinergically mediated cortical functions. The current study tested the hypothesis that morphine decreases prefrontal cortical acetylcholine release by acting at th...

journal_title：Anesthesiology

authors： Osman NI,Baghdoyan HA,Lydic R

更新日期：2005-10-01 00:00:00

abstract：BACKGROUND:The purpose of this study was to evaluate a new, physiologically inspired method for the analysis of the electroencephalogram during propofol-remifentanil anesthesia. Based on fixed-order autoregressive moving-average modeling, this method was hypothesized to be capable of dissociating the effects that hypno...

journal_title：Anesthesiology

authors： Liley DT,Sinclair NC,Lipping T,Heyse B,Vereecke HE,Struys MM

更新日期：2010-08-01 00:00:00

abstract：INTRODUCTION:The current investigation aimed to study the efficacy of hemostatic therapy guided either by conventional coagulation analyses or point-of-care (POC) testing in coagulopathic cardiac surgery patients. METHODS:Patients undergoing complex cardiac surgery were assessed for eligibility. Those patients in whom...

journal_title：Anesthesiology

authors： Weber CF,Görlinger K,Meininger D,Herrmann E,Bingold T,Moritz A,Cohn LH,Zacharowski K

更新日期：2012-09-01 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:Although considerable evidence indicates neuronal Ca channels play significant roles in pain perception, their possible importance in hypersensitization after acute inflammation has not been investigated. METHODS:Using carrageenan for inducing hypersensitization, the authors investigated the analgesic effec...

journal_title：Anesthesiology

authors： Yokoyama K,Kurihara T,Makita K,Tanabe T

更新日期：2003-12-01 00:00:00

abstract：BACKGROUND:Inhaled nitric oxide (NO) may be useful in the treatment of adult respiratory distress syndrome and other diseases characterized by pulmonary hypertension and hypoxemia. NO is rapidly converted to nitrogen dioxide (NO2) in oxygen (O2) environments. We hypothesized that in patients whose lungs are mechanicall...

journal_title：Anesthesiology

authors： Nishimura M,Hess D,Kacmarek RM,Ritz R,Hurford WE

更新日期：1995-05-01 00:00:00

abstract：:Thirty-six halogenated Me Et ethers have been synthesized for evaluation as volatile anesthetics. Eleven of the ethers were too unstable to test, and, of the remaining 25, 13 had promising anesthetic properties in mice and are suitable for study in larger animals. Those ethers having one H with at least 2 halogens oth...

journal_title：Anesthesiology

authors： Terrell RC

更新日期：2008-03-01 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：BACKGROUND:The Neurologic and Adaptive Capacity Score (NACS) is a multi-item scale that was published in 1982 to measure the effects of intrapartum drugs on the neonate. Although this scoring system has been widely used in obstetric anesthesia research, studies confirming its reliability have not been published. The pu...

journal_title：Anesthesiology

authors： Halpern SH,Littleford JA,Brockhurst NJ,Youngs PJ,Malik N,Owen HC

更新日期：2001-06-01 00:00:00

abstract：BACKGROUND:A focal cortical cryogenic brain injury has been reported to reduce the brain pentobarbital concentrations needed to prevent movement in response to pain in rats. This occurred despite any apparent behavioral changes in the awake animals. To determine whether this was true with other anesthetics, the authors...

journal_title：Anesthesiology

authors： Todd MM,Weeks JB,Warner DS

更新日期：1993-07-01 00:00:00

abstract：BACKGROUND:Mask ventilation is considered a "basic" skill for airway management. A one-handed "EC-clamp" technique is most often used after induction of anesthesia with a two-handed jaw-thrust technique reserved for difficult cases. Our aim was to directly compare both techniques with the primary outcome of air exchang...

journal_title：Anesthesiology

authors： Joffe AM,Hetzel S,Liew EC

更新日期：2010-10-01 00:00:00