Response to tubular airway resistance in normal subjects and postoperative patients.

Abstract:

:Critically ill patients must often breathe spontaneously through an endotracheal tube that acts as a fixed inspiratory and expiratory tubular airway resistor. Although this practice is common, its effect on the pattern of breathing is not known. The mean breathing patterns of seven normal, healthy male subjects and eight male patients who had undergone upper abdominal surgery 2-4 days previously were studied breathing through a mouthpiece fitted in random order with a 5, 6, 7, 8, or 15 mm diameter (17 mm long) resistor. These diameters were selected because they simulate the pressure-flow relationships of adult endotracheal tubes. With the 15 mm aperture, the patients had a greater breathing frequency (f) than did the normal subjects (21 +/- 5 [SD] vs. 14 +/- 4 breaths/min, P less than 0.01) as well as a smaller mean tidal volume (VT). In both groups, minute ventilation (VE) and f progressively decreased as resistance was increased by decreasing the aperture size from 15 to 16 mm. In the normal subjects but not the patients, VT also progressively decreased. When the diameter was decreased from 6 mm to 5 mm, there were increases in VT and decreases in f that were more marked in the normal subjects. In both groups, the changes in VE were accompanied by decreases in mean and peak inspiratory and expiratory flow rates. Throughout the study, oxygen consumption (VO2) and carbon dioxide production (VCO2) did not change. This, coupled with the decreases in VE resulted in decreases in the ventilatory equivalents to CO2 and O2 (VE/VCO2, VE/VO2).(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Anesthesiology

journal_title

Anesthesiology

authors

Weissman C,Askanazi J,Rosenbaum SH,Damask MC,Hyman AI,Kinney JM

doi

10.1097/00000542-198603000-00009

subject

Has Abstract

pub_date

1986-03-01 00:00:00

pages

353-8

issue

3

eissn

0003-3022

issn

1528-1175

journal_volume

64

pub_type

临床试验,杂志文章,随机对照试验
  • Isoflurane differentially modulates inhibitory and excitatory synaptic transmission to the solitary tract nucleus.

    abstract:BACKGROUND:Isoflurane anesthesia produces cardiovascular and respiratory depression, although the specific mechanisms are not fully understood. Cranial visceral afferents, which innervate the heart and lungs, synapse centrally onto neurons within the medial portion of the nucleus tractus solitarius (NTS). Isoflurane mo...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e318167af9a

    authors: Peters JH,McDougall SJ,Mendelowitz D,Koop DR,Andresen MC

    更新日期:2008-04-01 00:00:00

  • Importance of myocardial loading conditions in determining the effects of enflurane on left ventricular function in the intact and isolated canine heart.

    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

    pub_type: 杂志文章

    doi:10.1097/00000542-198302000-00010

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

    更新日期:1983-02-01 00:00:00

  • Derivation and diagnostic accuracy of the surgical lung injury prediction model.

    abstract:BACKGROUND:Acute lung injury (ALI) is a serious postoperative complication with limited treatment options. A preoperative risk-prediction model would assist clinicians and scientists interested in ALI. The objective of this investigation was to develop a surgical lung injury prediction (SLIP) model to predict risk of p...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e31821b5839

    authors: Kor DJ,Warner DO,Alsara A,Fernández-Pérez ER,Malinchoc M,Kashyap R,Li G,Gajic O

    更新日期:2011-07-01 00:00:00

  • The pharmacodynamics and pharmacokinetics of vecuronium in patients anesthetized with isoflurane with normal renal function or with renal failure.

    abstract::The duration of action and the pharmacokinetics of vecuronium were compared in patients with and without renal function. Twenty patients were studied: 12 with renal failure who were to receive kidney transplants from cadaveric donors, and eight with normal renal function. After oral premedication with diazepam, 10 mg,...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198808000-00012

    authors: Lynam DP,Cronnelly R,Castagnoli KP,Canfell PC,Caldwell J,Arden J,Miller RD

    更新日期:1988-08-01 00:00:00

  • Presynaptic and postsynaptic effects of the anesthetics sevoflurane and nitrous oxide in the human spinal cord.

    abstract:BACKGROUND:Reduced spinal excitability contributes to the suppression of movement responses to noxious stimuli during the anesthetic state. This study examines and compares presynaptic and postsynaptic effects of two anesthetics in the human spinal cord. METHODS:The authors tested two parameters during the administrat...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/01.anes.0000282099.30437.46

    authors: Baars JH,Benzke M,von Dincklage F,Reiche J,Schlattmann P,Rehberg B

    更新日期:2007-10-01 00:00:00

  • Development of a module for point-of-care charge capture and submission using an anesthesia information management system.

    abstract:BACKGROUND:The use of electronic charge vouchers in anesthesia practice is limited, and the effects on practice management are unreported. The authors hypothesized that the new billing technology would improve the effectiveness of the billing interface and enhance financial practice management measures. METHODS:A cust...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200607000-00028

    authors: Reich DL,Kahn RA,Wax D,Palvia T,Galati M,Krol M

    更新日期:2006-07-01 00:00:00

  • Isoflurane activates sarcolemmal adenosine triphosphate-sensitive potassium channels in vascular smooth muscle cells: a role for protein kinase A.

    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

    pub_type: 杂志文章

    doi:10.1097/01.anes.0000265158.47556.73

    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

  • Potassium channel-mediated hyperpolarization of mesenteric vascular smooth muscle by isoflurane.

    abstract:BACKGROUND:A primary source of calcium (Ca2+) necessary for excitation contraction in vascular smooth muscle (VSM) is influx via voltage-dependent Ca2+ channels. Thus, force generation in VSM is coupled closely to resting transmembrane potential, which itself is primarily a function of potassium conductance. Previously...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199903000-00021

    authors: Kokita N,Stekiel TA,Yamazaki M,Bosnjak ZJ,Kampine JP,Stekiel WJ

    更新日期:1999-03-01 00:00:00

  • Prolonged d-tubocurarine infusion and/or immobilization cause upregulation of acetylcholine receptors and hyperkalemia to succinylcholine in rats.

    abstract:BACKGROUND:Hyperkalemic cardiac arrest after the administration of succinylcholine (SCh) to critically ill intensive care patients has been attributed to changes in the acetylcholine receptors (AChRs) at the muscle membrane. The current study attempts to characterize the contributory roles of chronic administration of ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199602000-00017

    authors: Yanez P,Martyn JA

    更新日期:1996-02-01 00:00:00

  • Mechanism of myocardial protection by isoflurane. Role of adenosine triphosphate-regulated potassium (KATP) channels.

    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

    pub_type: 杂志文章

    doi:10.1097/00000542-199610000-00015

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

    更新日期:1996-10-01 00:00:00

  • Cognitive Decline after Delirium in Patients Undergoing Cardiac Surgery.

    abstract:WHAT WE ALREADY KNOW ABOUT THIS TOPIC:Cardiac surgery is associated with cognitive decline and postoperative delirium. The relationship between postoperative delirium and cognitive decline after cardiac surgery is unclear WHAT THIS ARTICLE TELLS US THAT IS NEW:The development of postoperative delirium is associated wi...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0000000000002253

    authors: Brown CH 4th,Probert J,Healy R,Parish M,Nomura Y,Yamaguchi A,Tian J,Zehr K,Mandal K,Kamath V,Neufeld KJ,Hogue CW

    更新日期:2018-09-01 00:00:00

  • Moxonidine, a selective imidazoline-alpha2 -adrenergic receptor agonist, produces spinal synergistic antihyperalgesia with morphine in nerve-injured mice.

    abstract:BACKGROUND:Moxonidine, a novel imidazoline-alpha2-adrenergic receptor-selective analgesic, was recently identified as antinociceptive but has yet to be evaluated in neuropathic pain models. alpha2-adrenergic receptor-selective analgesics, and high-efficacy opioids, effectively inhibit neuropathic pain behaviors in rode...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200009000-00026

    authors: Fairbanks CA,Nguyen HO,Grocholski BM,Wilcox GL

    更新日期:2000-09-01 00:00:00

  • Poor intraoperative blood glucose control is associated with a worsened hospital outcome after cardiac surgery in diabetic patients.

    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

    pub_type: 杂志文章

    doi:10.1097/00000542-200510000-00006

    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

  • Redistribution of microcirculatory blood flow within the intestinal wall during sepsis and general anesthesia.

    abstract:BACKGROUND:Hypoperfusion of the intestinal mucosa remains an important clinical problem during sepsis. Impairment of the autoregulation of microcirculatory blood flow in the intestinal tract has been suggested to play an important role in the development of multiple organ failure during sepsis and surgery. The authors ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200303000-00014

    authors: Hiltebrand LB,Krejci V,tenHoevel ME,Banic A,Sigurdsson GH

    更新日期:2003-03-01 00:00:00

  • Goal-directed colloid administration improves the microcirculation of healthy and perianastomotic colon.

    abstract:BACKGROUND:The aim of this study was to compare the effects of goal-directed colloid fluid therapy with goal-directed crystalloid and restricted crystalloid fluid therapy on healthy and perianastomotic colon tissue in a pig model of colon anastomosis surgery. METHODS:Pigs (n = 27, 9 per group) were anesthetized and me...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e31819841f6

    authors: Kimberger O,Arnberger M,Brandt S,Plock J,Sigurdsson GH,Kurz A,Hiltebrand L

    更新日期:2009-03-01 00:00:00

  • Mucociliary clearance in the canine lung during and after general anesthesia.

    abstract::Central and peripheral pulmonary mucociliary clearance was assessed by tantalum bronchography and serial chest roentgenograms in dogs. Thiopental, 25 mg/kg, did not change clearance from awake values. Halothane 1.2 MAC, for six hours, delayed both central and peripheral clearance by at least three hours. After halotha...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-197901000-00006

    authors: Forbes AR,Gamsu G

    更新日期:1979-01-01 00:00:00

  • Predictors of pulse oximetry data failure.

    abstract:BACKGROUND:Pulse oximeters have been reported to fail to record data in 1.12-2.50% of cases in which anesthesia records were handwritten. There is reason to believe that these may be underestimates. Computerized anesthesia records may provide insight into the true incidence of pulse oximetry data failures and factors t...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199604000-00013

    authors: Reich DL,Timcenko A,Bodian CA,Kraidin J,Hofman J,DePerio M,Konstadt SN,Kurki T,Eisenkraft JB

    更新日期:1996-04-01 00:00:00

  • Efficacy of oral clonidine premedication in children.

    abstract:BACKGROUND:Clonidine, an alpha 2-adrenoceptor agonist, has been shown to be effective as a preanesthetic medication in adults. The current study was designed to investigate the efficacy of two doses of oral clonidine as a premedicant preceding oral atropine in children. METHODS:In a prospective, randomized, double-bli...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-199311000-00009

    authors: Mikawa K,Maekawa N,Nishina K,Takao Y,Yaku H,Obara H

    更新日期:1993-11-01 00:00:00

  • Desflurane improves neurologic outcome after low-flow cardiopulmonary bypass in newborn pigs.

    abstract:BACKGROUND:Despite improvements in neonatal heart surgery, neurologic complications continue to occur from low-flow cardiopulmonary bypass (LF-CPB) and deep hypothermic circulatory arrest (DHCA). Desflurane confers neuroprotection against ischemia at normothermia and for DHCA. This study compared neurologic outcome of ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200212000-00026

    authors: Loepke AW,Priestley MA,Schultz SE,McCann J,Golden J,Kurth CD

    更新日期:2002-12-01 00:00:00

  • Malignant hyperthermia susceptibility in neuroleptic malignant syndrome.

    abstract::The relationship between neuroleptic malignant syndrome (NMS) and malignant hyperthermia (MH) was investigated using the in vitro skeletal muscle contracture test to screen for MH-susceptibility in NMS patients. The maximum contracture tension which developed following exposure to halothane (1-3%), and incremental dos...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198707000-00004

    authors: Caroff SN,Rosenberg H,Fletcher JE,Heiman-Patterson TD,Mann SC

    更新日期:1987-07-01 00:00:00

  • Enhancement by propofol of the gamma-aminobutyric acidA response in dissociated hippocampal pyramidal neurons of the rat.

    abstract:BACKGROUND:Activation of the gamma-aminobutyric acidA (GABAA) receptor-ionophore complex has been reported as a possible molecular mechanism of the anesthetic action of propofol. Augmentation of GABA-induced inhibitory transmission has also been suggested as a mechanism. Because data describing this latter mechanism in...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199410000-00026

    authors: Hara M,Kai Y,Ikemoto Y

    更新日期:1994-10-01 00:00:00

  • Global health implications of preanesthesia medical examination for ophthalmic surgery.

    abstract:BACKGROUND:Preanesthesia medical examination is a common procedure performed before ophthalmic surgery. The frequency and characteristics of new medical issues and unstable medical conditions revealed by ophthalmic preanesthesia medical examination are unknown. We conducted a prospective observational study to estimate...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/ALN.0b013e31828ea5b2

    authors: Phillips MB,Bendel RE,Crook JE,Diehl NN

    更新日期:2013-05-01 00:00:00

  • I653 and isoflurane produce similar dose-related changes in the electroencephalogram of pigs.

    abstract::I653 is a new volatile anesthetic structurally similar to enflurane and isoflurane. Since enflurane can induce convulsions, whereas isoflurane progressively depresses cortical electrical activity, the authors believed it important to assess the effect of I653 on the EEG (in both the "time" and "frequency" domain). The...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-198809000-00002

    authors: Rampil IJ,Weiskopf RB,Brown JG,Eger EI 2nd,Johnson BH,Holmes MA,Donegan JH

    更新日期:1988-09-01 00:00:00

  • Evaluation of low-dose endotoxin administration during pregnancy as a model of preeclampsia.

    abstract:BACKGROUND:Recent evidence implicates nitric oxide (*NO) in the pathogenesis of preeclampsia. The authors tested the hypothesis that administration of low-dose endotoxin to pregnant rats mimics the signs of preeclampsia in humans and that *NO and *NO-derived species play a role in that animal model. METHODS:Endotoxin ...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200012000-00017

    authors: Sakawi Y,Tarpey M,Chen YF,Calhoun DA,Connor MG,Chestnut DH,Parks DA

    更新日期:2000-12-01 00:00:00

  • Both local anesthetics and salbutamol pretreatment affect reflex bronchoconstriction in volunteers with asthma undergoing awake fiberoptic intubation.

    abstract:BACKGROUND:Awake tracheal intubation may evoke reflex bronchoconstriction in asthmatics. Whether this effect is altered by the choice of the local anesthetic used or by pretreatment with a beta2-adrenoceptor agonist is unknown. Therefore, we assessed the effect of awake fiberoptic intubation after lidocaine or dyclonin...

    journal_title:Anesthesiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00000542-200212000-00016

    authors: Groeben H,Schlicht M,Stieglitz S,Pavlakovic G,Peters J

    更新日期:2002-12-01 00:00:00

  • Influence of sevoflurane on the metabolism and renal effects of compound A in rats.

    abstract:BACKGROUND:The sevoflurane degradation product compound A is nephrotoxic in rats. In contrast, patient exposure to compound A during sevoflurane anesthesia has no clinically significant renal effects. The mechanism for this difference is incompletely understood. One possibility is that the metabolism and toxicity of co...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200512000-00012

    authors: Kharasch ED,Schroeder JL,Sheffels P,Liggitt HD

    更新日期:2005-12-01 00:00:00

  • Microinjection of an adenosine A1 agonist into the medial pontine reticular formation increases tail flick latency to thermal stimulation.

    abstract:BACKGROUND:Both pain and the pharmacologic management of pain can cause the undesirable effect of sleep disruption. One goal of basic and clinical neuroscience is to facilitate rational drug development by identifying the brain regions and neurochemical modulators of sleep and pain. Adenosine is thought to be an endoge...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-200212000-00036

    authors: Tanase D,Baghdoyan HA,Lydic R

    更新日期:2002-12-01 00:00:00

  • The effects of volatile anesthetics on L- and T-type calcium channel currents in canine cardiac Purkinje cells.

    abstract::The effects of halothane (0.45 and 0.9 mM, equivalent to 0.7 and 1.5%, respectively), isoflurane (0.54 and 1.23 mM, equivalent to 0.9 and 2.0%, respectively) and enflurane (0.65 and 1.48 mM, equivalent to 1.2 and 2.5%, respectively) on macroscopic L- and T-type Ca2+ channel currents were compared in single canine card...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199105000-00018

    authors: Eskinder H,Rusch NJ,Supan FD,Kampine JP,Bosnjak ZJ

    更新日期:1991-05-01 00:00:00

  • Sympathetic responses to induction of anesthesia in humans with propofol or etomidate.

    abstract::Anesthetic induction with propofol commonly results in hypotension. This study explored potential mechanisms contributing to hypotension by recording cardiovascular responses including sympathetic neural activity from patients during induction of anesthesia with propofol (2.5 mg.kg-1 plus 200 micrograms.kg-1.min-1) or...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199205000-00010

    authors: Ebert TJ,Muzi M,Berens R,Goff D,Kampine JP

    更新日期:1992-05-01 00:00:00

  • Pharmacokinetics, neuromuscular effects, and biodisposition of 3-desacetylvecuronium (Org 7268) in cats.

    abstract::The pharmacokinetics, biodisposition, and neuromuscular blocking properties of 3-desacetylvecuronium were studied in 17 adult cats. Animals were divided into three groups: five cats with kidney failure induced by bilateral ligation of the renal pedicles, six cats with galactosamine-induced fulminant hepatitis, and six...

    journal_title:Anesthesiology

    pub_type: 杂志文章

    doi:10.1097/00000542-199106000-00013

    authors: Segredo V,Shin YS,Sharma ML,Gruenke LD,Caldwell JE,Khuenl-Brady KS,Agoston S,Miller RD

    更新日期:1991-06-01 00:00:00