Abstract:
:The effects of volatile anesthetics on arterial mechanical properties in vivo are incompletely understood. The present investigation tested the hypothesis that isoflurane and halothane cause differential actions on the mechanical characteristics of the aorta in barbiturate-anesthetized dogs instrumented for measurement of aortic blood pressure, blood flow, and diameter. Aortic distensibility and characteristic aortic impedance were calculated from aortic diameter measurements. Oscillatory (Wo) and mean (Wm) hydraulic power were determined from aortic pressure and blood flow waveforms. Hemodynamics and aortic pressure, blood flow, and diameter were recorded before, during, and after 0.5, 0.75, and 1.0 minimum alveolar anesthetic concentration (MAC) (end-tidal) isoflurane (n = 7), or halothane (n = 8). Isoflurane and halothane caused significant (P < 0.05) and dose-related decreases in heart rate, mean arterial pressure, peak and end-diastolic aortic diameters, and aortic distensibility (e.g., from 0.16% +/- 0.03% during control to 0.24% +/- 0.04% mm Hg during 1.0 MAC isoflurane). Characteristic aortic impedance remained unchanged by either drug. In contrast to the findings with isoflurane, halothane increased the ratio of Wo to Wm (from 6.7 +/- 1.1 during control to 11.3 +/- 3.1 x 10(-2) during 1.0 MAC), suggesting that this drug decreases left ventricular mechanical efficiency. The results indicate that isoflurane and halothane do not alter characteristic aortic impedance and produce similar increases in aortic distensibility concomitant with reductions in aortic pressure. These findings support the contention that volatile anesthetic-induced alterations in aortic mechanical properties do not contribute to the differential effects of these drugs on left ventricular afterload in vivo.
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Hettrick DA,Pagel PS,Warltier DCdoi
10.1097/00000539-199612000-00006subject
Has Abstractpub_date
1996-12-01 00:00:00pages
1166-72issue
6eissn
0003-2999issn
1526-7598journal_volume
83pub_type
杂志文章abstract::The rapid infusion of vancomycin produces histamine release resulting in rash ("red-man's" syndrome) and hypotension. Because this phenomenon has been described primarily in healthy subjects, we prospectively studied the rapid infusion of vancomycin in 16 critically ill patients after open heart surgery in an attempt ...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/00000539-199010000-00013
更新日期:1990-10-01 00:00:00
abstract:BACKGROUND:Impaired cerebral blood flow (CBF) autoregulation during cardiopulmonary bypass (CPB) is associated with stroke and other adverse outcomes. Large and small arterial stenosis is prevalent in patients undergoing cardiac surgery. We hypothesize that large and/or small vessel cerebral arterial disease is associa...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0000000000003384
更新日期:2018-12-01 00:00:00
abstract::The efficacy of leg skin warming in preventing hypothermia and shivering was evaluated in two separate prospective, randomized trials in patients undergoing abdominal surgery. In the first trial, 22 patients were randomized to receive no hypothermia prevention (control group) or active warming with an electric warming...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1213/00000539-199311000-00021
更新日期:1993-11-01 00:00:00
abstract:BACKGROUND:Admission hypocalcemia predicts both massive transfusion and mortality in severely injured patients. However, the effect of calcium derangements during resuscitation remains unexplored. We hypothesize that any hypocalcemia or hypercalcemia (either primary or from overcorrection) in the first 24 hours after s...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000002312
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVE:Through the Australian and New Zealand Haemostasis Registry, we report on the Australian and New Zealand experience with recombinant activated factor VII (rFVIIa) in obstetric patients. METHODS:The role of rFVIIa for off-label indications, including trauma, cardiac surgery, and severe postpartum hemorrhage, ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181c039e6
更新日期:2009-12-01 00:00:00
abstract::One approach to elucidating the general anesthetic target has used genetic selection procedures, wherein animals are bred for sensitivity or resistance to general anesthetics and correlations are sought with a specific neuronal structural or functional defect. For example, murine strains have been developed that are e...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199376060-00022
更新日期:1993-06-01 00:00:00
abstract:BACKGROUND:Because children's anxiety influences pain perception, perioperative anxiety should be evaluated in clinical practice with a unique, useful, and valid tool to optimize pain management. In this study, we evaluated psychometric properties of the visual analog scale (VAS)-anxiety for children and to study its p...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e3181af00e4
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:In this prospective study, we compared the relationship between propofol concentrations and bispectral index (BIS) in children versus young adults anesthetized with target-controlled infusion (TCI) of propofol. METHODS:Forty-five prepubertal subjects (children) and 45 postpubertal subjects (adults) were stu...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e318164f388
更新日期:2008-04-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e3181964848
更新日期:2009-04-01 00:00:00
abstract::In Japan, an ever-present problem in the preoperative evaluation of patients with ischemic heart disease is that although such evaluations are based on Western data, these data serve as the basis for determining perioperative risk in Japanese patients. To remedy this problem, the Cardiac Ischemia and Anesthesia Resear...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000152009.49024.F1
更新日期:2005-05-01 00:00:00
abstract:UNLABELLED:Heart transplantation in patients with increased pulmonary vascular resistance is often associated with postbypass right heart failure. We therefore compared the abilities of prostaglandin E(1) (PGE(1)) and inhaled nitric oxide to reduce pulmonary vascular resistance during heart transplantation. Patients un...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-200003000-00005
更新日期:2000-03-01 00:00:00
abstract:BACKGROUND:Although local anesthetics (LAs) are generally accepted as being safe, incidental neuronal damage has been reported for all LAs in humans. Therefore, in this study, we compared the dose corresponding to 50% cell lethality (LD50) of articaine, lidocaine, mepivacaine, bupivacaine, prilocaine, and ropivacaine i...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000562
更新日期:2015-03-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1213/01.ane.0000118105.85933.8a
更新日期:2004-07-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000237125.42376.b5
更新日期:2006-10-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200210000-00045
更新日期:2002-10-01 00:00:00
abstract:BACKGROUND:Aspirin-resistant platelet activation in whole blood is attributable to a transcellular pathway not detected by isolated platelet aggregometry. Aspirin resistance as defined by urinary thromboxane levels is associated with increased risk for myocardial infarction or cardiac death. Whole blood point-of-care a...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e318277de06
更新日期:2013-02-01 00:00:00
abstract::Heart transplant recipients are susceptible to a number of complications in the immediate postoperative period. Despite advances in surgical techniques, mechanical circulatory support (MCS), and immunosuppression, evidence supporting optimal management strategies of the critically ill transplant patient is lacking on ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0000000000004220
更新日期:2019-10-01 00:00:00
abstract::We describe the unique process whereby simulation-based, objective structured clinical evaluation (OSCE) has been incorporated into the Israeli board examination in anesthesiology. Development of the examination included three steps: a) definition of clinical conditions that residents are required to handle competentl...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000194934.34552.ab
更新日期:2006-03-01 00:00:00
abstract:BACKGROUND:Although our understanding of nociceptive processing during anesthesia has increased greatly over the last decade, many patients still experience hyperalgesia and acute pain postoperatively. The noxious-induced withdrawal reflex (NIWR) model is specifically designed and validated to quantitatively study the ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e3181678831
更新日期:2008-04-01 00:00:00
abstract::To test the hypothesis that, after anesthesia for noncardiac surgical procedures, the increased cardiac work during recovery induces wall motion and ejection fraction (EF) abnormalities in patients with mild angina pectoris, gated radionuclide angiography was performed in patients undergoing simple cholecystectomy und...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1986-06-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e3181a9d75a
更新日期:2009-08-01 00:00:00
abstract:UNLABELLED:Despite clinical and laboratory evidence of perioperative hypercoagulability, there are no consistent data evaluating the extent, duration, and specific contribution of platelets and procoagulatory proteins by in vitro testing. We tested the hypothesis that the parallel use of standard and abciximab-cytochal...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200103000-00004
更新日期:2001-03-01 00:00:00
abstract:UNLABELLED:Forty-eight healthy parturients scheduled for elective cesarean delivery were randomly allocated to receive intrathecally either 12 mg of hyperbaric bupivacaine plus 12.5 microg of fentanyl (n = 23) or bupivacaine alone (n = 25). In the latter group, IV 12.5 microg of fentanyl was administered immediately af...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-200207000-00037
更新日期:2002-07-01 00:00:00
abstract::Adenosine, a ubiquitous metabolic intermediate in the body, is involved in nearly every aspect of cell function, including neuromodulation and neurotransmission. Adenosine A(1) and A(2) receptors are widely distributed in the brain and spinal cord, and are a novel, non-opiate target for pain management. The potential ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/01.ane.0000267260.00384.d9
更新日期:2007-08-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000255200.42574.22
更新日期:2007-04-01 00:00:00
abstract::The assessment of sympathetic denervation to the upper extremities during surgery for hyperhidrosis is essential in predicting postoperative outcome, particularly for endoscopic thoracic chain sympathotomy, a recently described, minimally destructive technique that minimizes postoperative compensatory hyperhidrosis. T...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/01.ANE.0000139934.15659.7F
更新日期:2005-01-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/01.ane.0000200364.55798.3f
更新日期:2006-04-01 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
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000001729
更新日期:2017-06-01 00:00:00
abstract::Acute respiratory distress syndrome (ARDS) is a significant cause of morbidity and mortality in the intensive care unit (ICU) and is characterized by lung epithelial and endothelial cell injury, with increased permeability of the alveolar-capillary membrane, leading to pulmonary edema, severe hypoxia, and difficulty w...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0000000000005146
更新日期:2020-11-01 00:00:00