Abstract:
:Clonidine in spinal and epidural blocks prolongs anesthesia, but can cause hypotension and bradycardia. The aim of our study was to compare hemodynamic and analgesic effects of spinal versus epidural clonidine alone and after repetitive dosing. In a prospective, randomized, double-blind study, we evaluated 40 patients scheduled for lower extremity orthopedic surgery under continuous spinal or epidural anesthesia with bupivacaine 0.5% (initial dose 5 mg and 50 mg, respectively). In either spinal or epidural technique one-half of patients received clonidine (150 micrograms) in addition to bupivacaine. Repeat doses of the same anesthetic mixture were allowed in cases of subsequent pain. Mean arterial pressure (MAP) and heart rate were recorded for 6 h after each injection. Duration of clinically useful anesthesia was defined as the time from drug administration to first sensation of pain. Intrathecal, but not epidural, clonidine decreased MAP significantly compared with bupivacaine alone. MAP after intrathecal clonidine with bupivacaine was lower than epidural clonidine with bupivacaine 5 and 6 h after injection. Repetitive administration caused no further decrease in MAP. Onset time required to surgical anesthesia (sensory block of T11) did not differ among the four groups. Duration of spinal and epidural anesthesia was increased more than two fold by clonidine. In summary, the addition of clonidine prolongs analgesia by either route. These results may be explained by clonidine's sites of action in hemodynamic control and the density of bupivacaine-induced block.
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Klimscha W,Chiari A,Krafft P,Plattner O,Taslimi R,Mayer N,Weinstabl C,Schneider B,Zimpfer Mdoi
10.1097/00000539-199502000-00020subject
Has Abstractpub_date
1995-02-01 00:00:00pages
322-7issue
2eissn
0003-2999issn
1526-7598journal_volume
80pub_type
临床试验,杂志文章,随机对照试验abstract:UNLABELLED:Despite their contribution to overall perioperative treatment of patients, anesthesiologists often remain in anonymity. We evaluated the impact of business cards on physician recognition after general anesthesia. Using a questionnaire, 441 patients were interviewed for recall of the anesthesiologist's name, ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200111000-00045
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND:Both femoral and obturator nerve blocks have been suggested to be useful in relieving pain after total knee arthroplasty (TKA). We sought to compare their efficacy. METHODS:Sixty patients undergoing elective unilateral TKA under spinal anesthesia received in a randomized, double-blind manner a femoral, obtu...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/01.ane.0000278158.36843.f7
更新日期:2007-09-01 00:00:00
abstract::Nicardipine is used in the treatment of premature labor. There are no previous reports in the anesthesia literature of serious side effects associated with this drug. We report a case of pulmonary edema induced by nicardipine therapy for tocolysis in a pregnant 27-yr-old patient admitted to our hospital for preterm la...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000135182.79774.A0
更新日期:2004-09-01 00:00:00
abstract:BACKGROUND:Sugammadex is the first selective relaxant binding agent that has been studied for reversal of neuromuscular blockade induced by rocuronium and other steroidal non-depolarizing neuromuscular blocking agents (NMBAs). OBJECTIVES:To assess the efficacy and safety of sugammadex in reversing neuromuscular blocka...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,meta分析
doi:10.1213/ANE.0b013e3181ce8d5e
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Risk of intraoperative hypothermia is relatively high in middle-aged and elderly patients undergoing curative resection of esophageal cancer, which may cause myocardial ischemia during the early postoperative period. The objective of this study was to compare aggressive or standard body temperature managemen...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0000000000004022
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Bilateral breast augmentation is an increasingly popular day-case procedure. Local infiltration with sedation is routinely used for its ease of application compared with the more complex and potentially riskier paravertebral blockade (PVB). We hypothesized that ropivacaine injected by experienced anesthesia ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e318264ba33
更新日期:2012-11-01 00:00:00
abstract:BACKGROUND:Rates of hypothermia for women undergoing spinal anesthesia for cesarean delivery are high and prevention is desirable. This trial compared the effectiveness of preoperative warming versus usual care among women receiving intrathecal morphine, which is thought to exacerbate perioperative heat loss. METHODS:...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0000000000002026
更新日期:2018-01-01 00:00:00
abstract::Morphine anesthesia is often recommended in patients with reduced cardiac reserve. As the effect of morphine on the balance between myocardial oxygen supply and demand is not well understood, the effect of large doses of morphine (3 mg/kg, subcutaneously) on experimental myocardial infarction size in the rat was evalu...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1982-10-01 00:00:00
abstract:UNLABELLED:Repetitive transient ischemic depolarizations (IDs) during focal cerebral ischemia are thought to contribute to ischemic damage. Isoflurane and pentobarbital reduce injury (versus the nonanesthetized state) after focal cerebral ischemia. The mechanism by which these drugs reduce injury is not known. This pro...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199804000-00018
更新日期:1998-04-01 00:00:00
abstract::A randomized double-blind study was conducted in 50 orthopedic patients to determine the effect of epinephrine and phenylephrine on the anesthetic properties of intrathecally administered tetracaine. Two doses of each vasoconstrictor agent were studied: 0.2 mg of epinephrine, 0.3 mg of epinephrine, 1 mg of phenylephri...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1984-02-01 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:Patients with bone marrow failure and severe thrombocytopenia are frequently given prophylactic platelet transfusion before interventions. The clinical effects of such transfusions, however, are poorly defined. We performed a prospective observational study on patients with bone marrow failure scheduled for ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000259
更新日期:2014-10-01 00:00:00
abstract:UNLABELLED:Encouraged by the popularity of the pulse oximeter pulse-tone, we developed and tested an auditory display of six physiologic variables. The display consisted of a cardiovascular sound triggered by every heartbeat (conveying heart rate) and a respiratory sound triggered by every breath (conveying respiratory...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200202000-00025
更新日期:2002-02-01 00:00:00
abstract::Bradykinin, an endogenous nonapeptide and an important mediator of inflammation, is also implicated in the initiation and maintenance of pain. Both des-Arg(8), Leu(8)-bradykinin (dALBK) and HOE-140, the prototypic bradykinin B1 and B2 receptor antagonists, respectively, have been shown to reduce pain behaviors and inf...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000130348.85587.BE
更新日期:2004-10-01 00:00:00
abstract::Phenylephrine and methoxamine are direct-acting, predominantly α(1) adrenergic receptor (AR) agonists. To better understand their physiologic effects, we screened 463 articles on the basis of PubMed searches of "methoxamine" and "phenylephrine" (limited to human, randomized studies published in English), as well as ci...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0b013e3182124c0e
更新日期:2011-08-01 00:00:00
abstract:UNLABELLED:We evaluated, by using a before-and-after study, the influence of leukoreduction by filtration on postoperative infections and adverse outcomes in patients undergoing elective major aortic surgery. From January 1995 to October 2000, all patients who underwent elective abdominal aortic surgery were included i...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200203000-00010
更新日期:2002-03-01 00:00:00
abstract::The average duration of hospitalization after total knee arthroplasty (TKA) in the United States is 4-5 days. In this two-phase study we investigated the feasibility of converting TKA into an overnight-stay procedure using a continuous femoral nerve block provided at home through postoperative day 4. Nine of 10 patien...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000189562.86969.9f
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:Increasing evidence suggests that patients with eating disorders are more likely to develop chronic pain. A misaligned diet has been reported to disrupt the sleep-awake rhythms. Combined with our previous investigation on circadian pain, we aimed to investigate the role of misaligned diet in the pain sensiti...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000002727
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND:The spinal cord is an important site where volatile anesthetics decrease sensation and produce immobility. Beyond this knowledge, our understanding of a site of anesthetic action is limited. Previous evidence suggests that dorsal horn neurons with ascending projections may be more susceptible to depression b...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e318163f8f3
更新日期:2008-03-01 00:00:00
abstract::Tramadol analgesia results from a monoaminergic effect by tramadol itself and an opioid effect of its metabolite (+)-M1 formed by O-demethylation of tramadol by CYP2D6. In this study we sought to determine the impact of (+)-M1 on the analgesic effect of tramadol evaluated by experimental pain models. The effect of an ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/01.ane.0000189613.61910.32
更新日期:2006-01-01 00:00:00
abstract::We tested the hypothesis that once thermoregulatory vasoconstriction is triggered at a given core temperature during isoflurane anesthesia, redilation starts at a substantially higher core temperature. To avoid direct perception of cutaneous cooling and warming, we used epidural anesthesia and limited our thermal mani...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199310000-00027
更新日期:1993-10-01 00:00:00
abstract::Mitral valve replacement is frequently complicated by a low cardiac output syndrome and elevated pulmonary arterial pressures. In the present study, we used dobutamine to increase cardiac index and measured the pulmonary hemodynamic effects in 10 patients with increased pulmonary vascular tone following mitral valve r...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1989-04-01 00:00:00
abstract::This study evaluates the changes of oxygen saturation (SpO2) after intravenous administration of methylene blue in 103 patients undergoing open repair of thoracoabdominal aortic aneurysms. We found that SpO2 decreased by a median (interquartile range [IQR]) of 49% (37%-81%) <1 minute after methylene blue administratio...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000004325
更新日期:2019-11-01 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::In this study, we assessed the relationship between brain estimated specific gravity (eSG) and clinical symptoms, therapeutic intensity level, and outcome in human traumatic brain injury (TBI). Brain weight, volume, and eSG of the noncontused hemispheric areas were measured from computed tomography (CT) DICOM images o...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000237401.22688.22
更新日期:2006-11-01 00:00:00
abstract:BACKGROUND:Unicondylar knee arthroplasty (UKA) is a commonly performed procedure with significant expected postoperative pain. Peripheral nerve blocks are 1 analgesic option, but some approaches may decrease quadriceps motor strength and interfere with early ambulation. In this study, we compared the analgesia provided...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0000000000001162
更新日期:2016-04-01 00:00:00
abstract::Tracheal injuries, independent of their origin, may be life-threatening. Surgical repair is regarded as the treatment of choice but has not been compared with other approaches. We hypothesized that defects bridgeable by an artificial airway may enable conservative treatment. We report on five patients with tracheal in...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000140780.14175.5A
更新日期:2005-01-01 00:00:00
abstract::Saphenous vein rings mounted in organ chambers containing Krebs-Ringer solution were used to determine if the venodilator effects of morphine, nalbuphine, and butorphanol are the result of interference with adrenergic neurotransmission or are caused by direct depressant actions on venous smooth muscle cells. Morphine ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract::A 50-micrograms/kg dose of fentanyl, given intravenously in divided doses to dogs under enflurane-nitrous oxide anesthesia caused sharp decreases in heart rate (HR), arterial blood pressure (AP), left ventricular dP/dt, and plasma levels of catecholamines. Naloxone, 20 micrograms/kg given 65-70 min later, completely a...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1983-03-01 00:00:00
abstract::A series of groups of Sprague-Dawley rats were given either secobarbital, phenobarbital, morphine, pentazocine, diazepam, methotrimeprazine, or saline (control) intraperitoneally on 4 consecutive days and then, on day 5, anesthetized with chloroform, trichlorethylene, fluroxene, halothane, methoxyflurane, enflurane, i...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-197501000-00020
更新日期:1975-01-01 00:00:00