Density detection in dependent left lung region using transesophageal echocardiography.

abstract：:Intravenous lidocaine has been shown to relieve acute postoperative pain and chronic neuropathic pain. It is not known whether analgesia produced by 2-10 micrograms/ml plasma concentrations of lidocaine is due to an effect on peripheral-pain-transducing nerves or to central nervous system effects. The current study ex...

journal_title：Anesthesiology

authors： Tanelian DL,MacIver MB

更新日期：1991-05-01 00:00:00

abstract：:The effects of morphine, halothane, and their various combinations on the purposeful movement (PM) response and the heart rate (HR) increase caused by noxious stimulation were studied in 250 rat experiments. Doses that block the PM and HR responses for the single agent and for combinations were determined with a probi...

journal_title：Anesthesiology

authors： Kissin I,Kerr CR,Smith LR

更新日期：1984-06-01 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:Cardiac complications are common during the postoperative period and may be associated with hypoxemia and tachycardia. Preliminary studies in high-risk patients after operation have shown a possible beneficial effect of oxygen therapy on arterial oxygen saturation and heart rate. METHODS:The authors studied...

journal_title：Anesthesiology

authors： Rosenberg-Adamsen S,Lie C,Bernhard A,Kehlet H,Rosenberg J

更新日期：1999-02-01 00:00:00

abstract：:Oxygen consumption (VO2) and minute ventilation (VE) were measured between and during uterine contractions in the first stage of labor before and after lumbar epidural analgesia (LEA) in 11 women who served as their own controls. VO2 and VE between contractions were essentially unchanged by LEA to a T10 or higher sens...

journal_title：Anesthesiology

authors： Hägerdal M,Morgan CW,Sumner AE,Gutsche BB

更新日期：1983-11-01 00:00:00

abstract：BACKGROUND:Inhaled nitric oxide (NO), an endothelium-derived relaxing factor, is a selective pulmonary vasodilator. The authors investigated whether inhaled NO decreases pulmonary vascular resistance (PVR) while preserving hypoxic pulmonary vasoconstriction and whether it maintains or improves oxygenation in patients d...

journal_title：Anesthesiology

authors： Rich GF,Lowson SM,Johns RA,Daugherty MO,Uncles DR

更新日期：1994-01-01 00:00:00

abstract：BACKGROUND:Chronic use of μ-opioid receptor agonists paradoxically causes both hyperalgesia and the loss of analgesic efficacy. Opioid treatment increases presynaptic N-methyl-D-aspartate receptor activity to potentiate nociceptive input to spinal dorsal horn neurons. However, the mechanism responsible for this opioid-...

journal_title：Anesthesiology

authors： Deng M,Chen SR,Chen H,Pan HL

更新日期：2019-05-01 00:00:00

abstract：BACKGROUND:Acid-sensing ion channel 3 (ASIC3) upregulation has been reported in dorsal root ganglion neurons after incision and contributes to postoperative nociception. This study hypothesized that upregulation of ASIC3 in incised tissues is induced by nerve growth factor through the phosphoinositide 3-kinase/protein ...

journal_title：Anesthesiology

authors： Li H,Li H,Cheng J,Liu X,Zhang Z,Wu C

更新日期：2020-12-01 00:00:00

abstract：BACKGROUND:The pharmacology of oxycodone is poorly understood despite its growing clinical use. The discrepancy between its good clinical effectiveness after systemic administration and the loss of potency after spinal administration led the authors to study the pharmacodynamic effects of oxycodone and its metabolites ...

journal_title：Anesthesiology

authors： Lemberg KK,Kontinen VK,Siiskonen AO,Viljakka KM,Yli-Kauhaluoma JT,Korpi ER,Kalso EA

更新日期：2006-10-01 00:00:00

abstract：BACKGROUND:Chronic neck pain after whiplash injury is caused by cervical zygapophysial joints in 50% of patients. Diagnostic blocks of nerves supplying the joints are performed using fluoroscopy. The authors' hypothesis was that the third occipital nerve can be visualized and blocked with use of an ultrasound-guided te...

journal_title：Anesthesiology

authors： Eichenberger U,Greher M,Kapral S,Marhofer P,Wiest R,Remonda L,Bogduk N,Curatolo M

更新日期：2006-02-01 00:00:00

abstract：BACKGROUND:Nitric oxide (NO) formed from L-arginine is exhaled by mammals and regulates pulmonary vascular tone. Little is known about how its formation is stimulated. METHODS:The concentration of NO in exhaled air was monitored by chemiluminescence in pentobarbital-anesthetized rabbits receiving mechanical ventilatio...

journal_title：Anesthesiology

authors： Persson MG,Lönnqvist PA,Gustafsson LE

更新日期：1995-04-01 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:Chronic pain is associated with depression. In rodents, pain is often assessed by sensory hypersensitivity, which does not sufficiently measure affective responses. Low-dose ketamine has been used to treat both pain and depression, but it is not clear whether ketamine can relieve depression associated with c...

journal_title：Anesthesiology

authors： Wang J,Goffer Y,Xu D,Tukey DS,Shamir DB,Eberle SE,Zou AH,Blanck TJ,Ziff EB

更新日期：2011-10-01 00:00:00

abstract：BACKGROUND:The study evaluated the efficacy of recombinant human antithrombin (rhAT) for restoring heparin responsiveness in heparin resistant patients undergoing cardiac surgery. METHODS:This was a multicenter, randomized, double-blind, placebo-controlled study in heparin-resistant patients undergoing cardiac surgery...

journal_title：Anesthesiology

authors： Avidan MS,Levy JH,Scholz J,Delphin E,Rosseel PM,Howie MB,Gratz I,Bush CR,Skubas N,Aldea GS,Licina M,Bonfiglio LJ,Kajdasz DK,Ott E,Despotis GJ

更新日期：2005-02-01 00:00:00

abstract：BACKGROUND:Hydroxyethyl starch (HES) is commonly used as plasma expander during surgery but may be nephrotoxic as seen in studies in patients with sepsis. The authors hypothesized that the possible nephrotoxicity of 6% HES 130/0.4 could be revealed by measurements of urinary excretion of neutrophil gelatinase-associate...

journal_title：Anesthesiology

authors： Kancir AS,Pleckaitiene L,Hansen TB,Ekeløf NP,Pedersen EB

更新日期：2014-11-01 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：BACKGROUND:Inhalational anesthetics inhibit the nitric oxide-guanylyl cyclase signaling pathway, but the site of this inhibition is not yet clear. This study was designed to test the hypothesis that receptor activation or downstream signaling events leading to nitric oxide synthase activation are important sites for th...

journal_title：Anesthesiology

authors： Zuo Z,Tichotsky A,Johns RA

更新日期：1996-05-01 00:00:00

abstract：BACKGROUND:Good postoperative recovery is increasingly recognized as an important outcome after surgery. The authors created a new Post-operative Quality Recovery Scale (PQRS) that tracks multiple domains of recovery from immediate to long-term time periods in patients of varying ages, languages, and cultures. METHODS...

journal_title：Anesthesiology

authors： Royse CF,Newman S,Chung F,Stygall J,McKay RE,Boldt J,Servin FS,Hurtado I,Hannallah R,Yu B,Wilkinson DJ

更新日期：2010-10-01 00:00:00

abstract：BACKGROUND:Enflurane and isoflurane are structural isomers with different anesthetic potencies and side effects. It is not clear whether these differences are produced by differing occupancy of common protein binding sites or by occupancy of different sites, but the very similar molecular properties make the latter pos...

journal_title：Anesthesiology

authors： Liu R,Eckenhoff RG

更新日期：2005-04-01 00:00:00

abstract：BACKGROUND:Cardiac surgery requiring the use of cardiopulmonary bypass is frequently complicated by coagulopathic bleeding that, largely due to the shortcomings of conventional coagulation tests, is difficult to manage. This study evaluated a novel transfusion algorithm that uses point-of-care coagulation testing. MET...

journal_title：Anesthesiology

authors： Karkouti K,McCluskey SA,Callum J,Freedman J,Selby R,Timoumi T,Roy D,Rao V

更新日期：2015-03-01 00:00:00

abstract：BACKGROUND:Myocardial contractility is regulated by intracellular concentration of free Ca2+ ([Ca2'],) and myofilament Ca2+ sensitivity. The objective of this study was to elucidate the direct effects of thiopental on cardiac excitation-contraction coupling using individual, field-stimulated ventricular myocytes. METH...

journal_title：Anesthesiology

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

更新日期：1998-07-01 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:Patient-controlled analgesia (PCA) with intravenous morphine and patient-controlled epidural analgesia (PCEA), using an opioid either alone or in combination with a local anesthetic, are two major advances in the management of pain after major surgery. However, these techniques have been evaluated poorly in ...

journal_title：Anesthesiology

authors： Mann C,Pouzeratte Y,Boccara G,Peccoux C,Vergne C,Brunat G,Domergue J,Millat B,Colson P

更新日期：2000-02-01 00:00:00

abstract：BACKGROUND:The authors compared the intubation success rate of straight reinforced tracheal tubes emerging from the Airtraq laryngoscope (Prodol Meditec S.A., Vizcaya, Spain) with standard preformed polyvinyl chloride tracheal tubes in anesthetized patients. METHODS:The authors randomly allocated 347 adult patients to...

journal_title：Anesthesiology

authors： Dimitriou VK,Zogogiannis ID,Douma AK,Pentilas ND,Liotiri DG,Wachtel MS,Karakitsos D

更新日期：2009-12-01 00:00:00

abstract：:Data regarding left ventricular function suggest that the extent of shortening may differ between regions. This study was undertaken to determine the effects of negative inotropic drugs used during anesthesia on different areas of the left ventricle. Forty mongrel dogs were anesthetized and instrumented for measuremen...

journal_title：Anesthesiology

authors： Diedericks J,Leone BJ,Foëx P

更新日期：1989-01-01 00:00:00

abstract：BACKGROUND:To minimize the risk of pneumonia, many anesthesiologists delay anesthesia-requiring procedures when patients exhibit signs of viral upper respiratory tract infection. Postinfluenza secondary bacterial pneumonias (SBPs) are a major cause of morbidity and mortality. An increased host susceptibility to SBP pos...

journal_title：Anesthesiology

authors： MacDonald BA,Chakravarthy KV,Davidson BA,Mullan BA,Alluri R,Hakansson AP,Knight PR

更新日期：2015-09-01 00:00:00

abstract：:Clonidine, an alpha 2-adrenergic agonist, can potentiate opioid-induced analgesia. In a double-blind placebo-controlled study in human volunteers, we sought to determine whether clonidine also potentiates opioid-induced respiratory depression. Hypercapnic ventilatory responses (minute ventilation, mean inspiratory flo...

journal_title：Anesthesiology

authors： Jarvis DA,Duncan SR,Segal IS,Maze M

更新日期：1992-06-01 00:00:00

abstract：BACKGROUND:Cardiac protection by volatile anesthetic-induced preconditioning and ischemic preconditioning have similar signaling pathways. Recently, it was reported that augmentation of protein modified with O-linked β-N-acetylglucosamine (O-GlcNAc) contributes to cardiac protection. This study investigated the role of...

journal_title：Anesthesiology

authors： Hirose K,Tsutsumi YM,Tsutsumi R,Shono M,Katayama E,Kinoshita M,Tanaka K,Oshita S

更新日期：2011-11-01 00:00:00

abstract：BACKGROUND:The aim of this study was to investigate the effects of two imidazoline-derived intravenous anesthetics, etomidate and midazolam, on vascular adenosine triphosphate-sensitive potassium (KATP) channel activity. METHODS:In isolated rat aorta, isometric tension was recorded to examine the anesthetic effects on...

journal_title：Anesthesiology

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

更新日期：2007-03-01 00:00:00

abstract：:To determine if continuous positive airway pressure (CPAP) or expiratory positive airway pressure (EPAP) is superior for achieving or maintaining effective lung volume in spontaneously breathing critically ill patients in acute respiratory failure, the authors measured functional residual capacity (FRC), airway and es...

journal_title：Anesthesiology

authors： Schlobohm RM,Falltrick RT,Quan SF,Katz JA

更新日期：1981-10-01 00:00:00