Abstract:
:The existence of a dose-response relation between nitrous oxide concentration and regional dysfunction in compromised myocardium, and whether or not halothane-induced myocardial depression alleviated this regional dysfunction was examined. Nitrous oxide was administered to eight dogs with experimentally induced left anterior descending coronary artery (LAD) critical stenosis during fentanyl (100 micrograms/kg bolus plus 1.5 micrograms.kg-1.min-1) anesthesia. Two modes of nitrous oxide administration were employed: gradual (in steps of 20% inspired, i.e., 0%, 20%, 40%, and 60% inspired) and abrupt (0-60% inspired). Regional myocardial function was assessed by sonomicrometry. Regional dysfunction in the compromised myocardium, in the form of postsystolic shortening (PSS), increased above baseline levels during 40% (4.2 +/- 2.3% to 12.1 +/- 3.9%, P less than 0.05) and 60% (4.2 +/- 2.3% to 12.5 +/- 3.6%, P less than 0.05) inspired nitrous oxide (gradual administration) and also during abrupt 60% nitrous oxide administration (6.4 +/- 2.6% to 9.9 +/- 3.2%, P less than 0.05). After abrupt 60% inspired nitrous oxide administration, halothane (0.7% inspired) was introduced and caused decreases in mean arterial pressure (106.1 +/- 4.5 mm Hg to 76.2 +/- 5.5 mm Hg, P less than 0.05) and peak LV dP/dt (1700 +/- 150 mm Hg/sec to 1100 +/- 100 mm Hg/sec, P less than 0.05). Halothane caused a marked increase in PSS (9.9 +/- 3.2% to 30.8 +/- 12.6%, P less than 0.05). Thus nitrous oxide administration caused regional dysfunction in myocardium supplied by a critically narrowed LAD whether administered gradually or abruptly and at concentrations as low as 40% inspired.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Leone BJ,Philbin DM,Lehot JJ,Foëx P,Ryder WAsubject
Has Abstractpub_date
1988-09-01 00:00:00pages
814-22issue
9eissn
0003-2999issn
1526-7598journal_volume
67pub_type
杂志文章abstract:BACKGROUND:Among the various factors influencing the success rate, onset time, and duration of peripheral nerve blocks, the role of local anesthetics concentration remains uncertain. In this prospective, randomized, single-blinded study, we evaluated whether varying the dilution of a fixed dose of mepivacaine solution ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0000000000000293
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:Postoperative sore throat (POST) is a common complication after endotracheal intubation. We compared the effectiveness on POST of spraying the endotracheal tube (ETT) cuff with benzydamine hydrochloride, 10% lidocaine, and 2% lidocaine. METHODS:Three hundred seventy-two patients were randomly allocated into...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e3181d4854e
更新日期:2010-10-01 00:00:00
abstract::The anesthetic effect of lidocaine was evaluated in rats by determining the change in anesthetic requirement of cyclopropane MAC that was produced by blood concentrations of lidocaine in the clinically useful range. A linear reduction in anesthetic requirement was produced with concentrations up to 1 mug/ml. Further i...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-197611000-00016
更新日期:1976-11-01 00:00:00
abstract:BACKGROUND:The etiology of postoperative cognitive decline (POCD) remains to be determined. Anesthetic isoflurane, but not desflurane, may induce neurotoxicity. However, the functional consequences of these effects have not been assessed. We therefore performed a pilot study to determine the effects of isoflurane and d...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1213/ANE.0b013e31823b2602
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:There are profound racial and ethnic disparities in obstetric outcomes in the United States, but little is known about disparities in risk of postpartum hemorrhage (PPH). We explored the association of race and ethnicity on the risk of PPH due to uterine atony with sequential adjustment for possible mediatin...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3182691e62
更新日期:2012-11-01 00:00:00
abstract:UNLABELLED:We investigated the impact of cardiopulmonary bypass pump (CPB), hematocrit, gender, age, and body weight on blood use in patients undergoing coronary artery bypass graft surgery at a major university hospital. Participants were 1235 consecutive patients undergoing primary coronary artery surgery over a peri...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/01.ane.0000081790.75298.d8
更新日期:2003-10-01 00:00:00
abstract:UNLABELLED:We conducted this retrospective study to document the efficacy and safety, and demonstrate the spectrum of indications for subcutaneously tunneled epidural catheters in the management of prolonged pain in pediatric patients. The charts of 25 patients with prolonged pain that was unresponsive to conventional ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200106000-00016
更新日期:2001-06-01 00:00:00
abstract::We studied the pharmacokinetics of thiopental enantiomers in 14 healthy patients aged 37-73 yr receiving racemic thiopental by intravenous (IV) bolus or IV infusion. Plasma concentration of each enantiomer was measured by chiral high-performance liquid chromatography. After IV bolus, the total plasma clearance (CL) (2...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199609000-00020
更新日期:1996-09-01 00:00:00
abstract::In a laboratory experiment, the expected analgesic action of 33% nitrous oxide was reversed by creating the expectancy of heightened awareness of bodily sensations. Pain threshold and tolerance of electrical tooth-pulp stimulation were significantly reduced. Results from a control study gave us a basis for comparison ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1983-12-01 00:00:00
abstract:UNLABELLED:We investigated the effects of sevoflurane and hyperventilation on intraoperative electrocorticogram (ECoG) spike activity in 13 patients with intractable epilepsy. Grid electrodes were placed on the brain surface and ECoG was recorded under the following conditions: 1) 0.5 minimal alveolar anesthetic concen...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/01.ANE.0000158606.31021.1F
更新日期:2005-08-01 00:00:00
abstract::We have developed computer software to store data on all surgical and obstetrical anesthetics administered by our department. The computer system provides information for monitoring the residency training program, department and operating room management, professional fee billing, and research. It imposes little addit...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1985-04-01 00:00:00
abstract::Preoperative local anesthetic blockade of somatosensory pathways involved with skin incision and other noxious perioperative stimuli may "preempt" or attenuate the postoperative pain response. Since the Pfannenstiel incision lies within the L1 dermatome, bilateral ilioinguinal, iliohypogastric nerve blocks (IINBs) sho...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-199601000-00003
更新日期:1996-01-01 00:00:00
abstract:UNLABELLED:One thousand questionnaires concerning the techniques and complications of intravenous regional anesthesia (IVRA) were sent to 900 American and 100 Canadian anesthesiologists. Of the 321 respondents, 86% perform IVRA regularly. A wide variation in device-related and clinical aspects was found, ranging from a...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199710000-00027
更新日期:1997-10-01 00:00:00
abstract::The effects of isoflurane or halothane on cerebral blood flow (CBF) reactivity to changes in arterial carbon dioxide tension (PaCO2) during carotid endarterectomy were compared using the intravenous method of 133Xe-CBF determination. Patients, aged 65 +/- 3 yr (mean +/- SE), received O2 and N2O (1:1) and either 0.75% ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:
更新日期:1991-10-01 00:00:00
abstract::We compared laryngeal aperture (LA) exposure and endotracheal intubation difficulty scale (IDS) scores between balloon-assisted and conventional laryngoscopy. Thirty-two anesthetized and paralyzed elective surgery patients underwent laryngoscopy with a standard number 4 and a modified number 4 curved blade carrying a ...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1097/00000539-200012000-00040
更新日期:2000-12-01 00:00:00
abstract::A well secured endotracheal tube is very essential for the safe conduct of anesthesia. In maxillofacial surgeries, providing secure fixation of the nasotracheal tube has always been a problem. We have used an infant feeding tube that goes around the nasal septum for the fixation of the nasal endotracheal tube. This me...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/01.ANE.0000134801.87404.3F
更新日期:2004-11-01 00:00:00
abstract::Descriptive statistics are specific methods basically used to calculate, describe, and summarize collected research data in a logical, meaningful, and efficient way. Descriptive statistics are reported numerically in the manuscript text and/or in its tables, or graphically in its figures. This basic statistical tutori...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000002471
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:Improving perioperative efficiency and throughput has become increasingly important in the modern practice of anesthesiology. Fast-track surgery represents a multidisciplinary approach to improving perioperative efficiency by facilitating recovery after both minor (i.e., outpatient) and major (inpatient) sur...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/01.ane.0000263034.96885.e1
更新日期:2007-06-01 00:00:00
abstract::The purpose of this study was to compare meperidine to meperidine with bupivacaine when used for patient-controlled epidural analgesia (PCEA) after thoracotomy. For 3 days after thoracotomy patients received thoracic PCEA with meperidine 0.1% plain or with added bupivacaine 0.1% or 0.01%. No background infusion was us...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-199607000-00014
更新日期:1996-07-01 00:00:00
abstract:BACKGROUND:Infusion of lipid emulsion has been shown to reverse lipophilic drug-induced cardiovascular collapse in laboratory models and humans. The effect of high dose lipid in nondrug-induced cardiac arrest is, however, uncertain. In a rabbit model of asphyxial pulseless electrical activity (PEA) we compared lipid au...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e31819367ba
更新日期:2009-04-01 00:00:00
abstract::Animal studies suggest that increased circulating estrogen and progesterone, and activation of the endorphin system cause prenancy-induced antinociceptive effects. Human studies have provided inconsistent results and have often lacked a nonpregnant control group. In this study, we compared sensitivity to experimental ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000239224.48719.28
更新日期:2006-11-01 00:00:00
abstract::We studied three groups of patients without previous renal impairment, undergoing elective coronary artery bypass surgery. Group H (n = 7) underwent open heart surgery using moderate hypothermia (28 degrees C); Groups N and M (n = 8, each) were managed at normothermia. The extracorporeal circuit was primed with Hartma...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1213/00000539-199405000-00004
更新日期:1994-05-01 00:00:00
abstract:BACKGROUND:Synergistic neuromuscular blocking effects have been observed clinically with certain pairs of nicotinic acetylcholine receptor (nAChR) competitive antagonists. The mechanism for synergy has not been elucidated. We tested the hypothesis that synergy arises from a differential selectivity of antagonists for t...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e31817b4469
更新日期:2008-08-01 00:00:00
abstract::To assess the evolution of satisfactory neohepatic graft function or failure, hemodynamic variables, along with data for oxygen delivery and utilization, were analyzed retrospectively in 99 patients undergoing orthotopic liver transplantation. Caval cross-clamping without venovenous bypass initiated a series of hemody...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199303000-00022
更新日期:1993-03-01 00:00:00
abstract:UNLABELLED:The optimal dose and timing of 5-HT(3) antagonist administration for prophylaxis against postoperative nausea and vomiting (PONV) remains controversial. Although 5-HT(3) antagonists seem to be most effective when administered near the end of surgery, there are no data on the comparative efficacy or costs ass...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-200006000-00017
更新日期:2000-06-01 00:00:00
abstract::External cephalic version is a technique that decreases the need for cesarean delivery in patients with breech presentation. Several techniques exist to increase the success of external cephalic version; however, there are no studies comparing different tocolytics in patients who also received neuraxial anesthesia. We...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000004155
更新日期:2020-03-01 00:00:00
abstract:UNLABELLED:Capsaicin can produce a selective and long-lasting neural blockade. Resiniferatoxin (RTX) is an ultrapotent vanilloid agonist with a unique spectrum of activities different from that of capsaicin. We sought to determine whether a single application of RTX to a peripheral nerve could completely prevent the lo...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200205000-00038
更新日期:2002-05-01 00:00:00
abstract::Although isoflurane can reduce ischemic neuronal injury after short postischemic recovery intervals, data from our laboratory have demonstrated that this neuroprotection is not sustained and that delayed apoptotic neuronal death, mediated in part by activation of caspases, contributes to the gradual increase in the si...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000202381.40516.8d
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND:Hypercapnia with hyperventilation shortens the time between turning off the vaporizer (1 MAC) and when patients open their eyes after isoflurane anesthesia by 62%. METHODS:In the present study we tested whether a proportional shortening occurs with sevoflurane and desflurane. RESULTS:Consistent with a prop...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000265849.33203.60
更新日期:2007-07-01 00:00:00
abstract:BACKGROUND:We evaluated the interaction of dopamine-proxymetacaine and dopamine- oxybuprocaine antinociception using isobolograms. METHODS:This experiment uses subcutaneous drug (proxymetacaine, oxybuprocaine, and dopamine) injections under the skin of the rat's back, thus simulating infiltration blocks. The dose-rela...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000002635
更新日期:2018-05-01 00:00:00