Abstract:
:We examined the effect of halothane and isoflurane on contraction in the vascular smooth muscle of rat thoracic aorta simultaneously with the cytosolic Ca2+ levels ([Ca2+]i). Isolated spiral strips of rat thoracic aorta were suspended for isometric tension recordings in physiologic salt solution. The [Ca2+]i was measured concomitantly using fura-2-Ca2+ fluorescence. Muscle tension was elicited either by 51 mM K+ solution or 30 nM norepinephrine, and the muscle was exposed to 0%, 1%, 2%, 3% halothane or 0%, 1%, 2%, 3%, 4% isoflurane. The effects of the anesthetics were compared with the effects of verapamil, an L-type voltage-dependent Ca2+ channel blocker, also administered during K(+)-induced muscle contraction. In another series, the effects of the anesthetics on caffeine- or norepinephrine-induced muscle contraction were determined in Ca(2+)-free solution. Finally, 3% halothane or 4% isoflurane was administered during K(+)-induced contraction in muscle strips pretreated with ryanodine and caffeine. During K(+)-induced contraction, halothane evoked a transient increase followed by a decrease in both muscle tension and [Ca2+]i. The biphasic change in muscle tension was not elicited by isoflurane or by any agent under norepinephrine-induced contraction. Both halothane and isoflurane ultimately suppressed both K(+)- and norepinephrine-induced increases in muscle tension and the [Ca2+]i in a concentration-dependent manner. The slopes of the [Ca2+]i-tension regression lines under the two anesthetics were significantly steeper than that under verapamil during K(+)-induced contraction. Halothane, but not isoflurane, augmented 4 mM caffeine-induced tension and [Ca2+]i transients in the Ca(2+)-free solution in a concentration-dependent manner. However, neither anesthetic influenced norepinephrine-induced tension and [Ca2+]i transients. In the muscle strips pretreated with ryanodine and caffeine, the difference observed between the anesthetics was abolished. In conclusion, halothane, but not isoflurane, enhances Ca2+ release predominantly from the caffeine-releasable Ca2+ stores in vascular smooth muscle; this release may modify the effect of halothane. The intracellular Ca2+ pools can be affected differently by volatile anesthetic drugs, depending on the nature of the stimulus for smooth muscle contraction.
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Tsuchida H,Namba H,Seki S,Fujita S,Tanaka S,Namiki Adoi
10.1213/00000539-199406000-00006subject
Has Abstractpub_date
1994-06-01 00:00:00pages
1067-76issue
6eissn
0003-2999issn
1526-7598journal_volume
78pub_type
杂志文章abstract::Combinations of nonsteroidal antiinflammatory drugs (NSAIDs) and opioids are widespread in the management of pain, allowing better analgesia with reduced side effects. Cannabinoids are promising analgesic drugs that have pharmacological properties similar to those of opioids. However, the beneficial effects of cannabi...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000194587.94260.1d
更新日期:2006-02-01 00:00:00
abstract:UNLABELLED:We describe the development and evaluation of a simple slide rule that enables the bedside determination of the infusion rate for a particular target plasma concentration of propofol. The infusion rate to reach this target concentration at time (t) is the product of the target concentration, body weight, and...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200301000-00029
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:The perioperative course of patients undergoing intracranial surgery is frequently complicated by hypertensive episodes. Dexmedetomidine (DEX), an alpha-2 adrenoreceptor agonist, is gaining popularity in neuroanesthesia, because its sympatholytic and antinociceptive properties may improve hemodynamic stabili...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ane.0b013e3181804298
更新日期:2008-10-01 00:00:00
abstract::Enhancement of a vecuronium neuromuscular blockade by prior administration of succinylcholine has been attributed to both pharmacokinetic and pharmacodynamic mechanisms. This study was performed to elucidate the mechanism of this interaction using decamethonium as the agonist drug. In five healthy patients undergoing ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199303000-00033
更新日期:1993-03-01 00:00:00
abstract::Health care-associated infections are a hospital-wide concern associated with a significant increase in patient morbidity, mortality, and health care costs. Bacterial transmission in the anesthesia work area of the operating room environment is a root cause of 30-day postoperative infections affecting as many as 16% o...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000505
更新日期:2015-04-01 00:00:00
abstract::The antagonism of a pancuronium-curare (P + C) neuromuscular block was assessed and compared to the antagonism of a pancuronium (P) block. One group of seven patients received P + C (0.024 mg/kg + 0.144 mg/kg); another similar group of seven patients received P (0.07 mg/kg). Both groups were anesthetized with nitrous ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1983-12-01 00:00:00
abstract::We investigated the characteristics of hypoxemic fetoplacental vasoconstriction (HFPV) in the dual perfused, single isolated human placental cotyledon. Fetal arterial blood pressures (FAP) were measured in four cotyledons (Group 1) equilibrated with 21% oxygen (O2), 5% carbon dioxide (CO2), and nitrogen (N2) [control]...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000222468.76942.d8
更新日期:2006-08-01 00:00:00
abstract:BACKGROUND:Neuromuscular blocking drugs have been implicated in intraoperative bronchoconstrictive episodes. We examined the effects of clinically relevant doses of cisatracurium and rocuronium on the lung mechanics of pediatric subjects. We hypothesized that cisatracurium and rocuronium would have bronchoconstrictive ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e3182a6d191
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND:Vital sign monitors and ventilator/anesthesia workstations are equipped with multiple alarms to improve patient safety. A high number of false alarms can lead to a "crying wolf" phenomenon with consecutively ignored critical situations. Systematic data on alarm patterns and density in the perioperative phase...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181fcc504
更新日期:2011-01-01 00:00:00
abstract:UNLABELLED:An IM combination of meperidine, promethazine, and chlorpromazine (DPT) has been given as sedation for pediatric procedures for more than 40 years. We compared this IM combination to oral (PO) ketamine/midazolam in children having cardiac catheterization. A total of 51 children, ages 9 mo to 10 yr, were enro...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-200002000-00011
更新日期:2000-02-01 00:00:00
abstract:BACKGROUND:In vivo animal assays are a cornerstone of preclinical pain research. An optimal stimulus for determining the activity of potential analgesics would produce responses of a consistent magnitude on repeated testing. Intraplantar (i.pl.) injection of hypertonic saline (HS) in mice produces robust nociceptive re...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000003593
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Heart rate variability might predict arrhythmias after coronary artery bypass grafting. METHODS:Off-line processing of 10-min electrocardiogram recordings of consecutive patients provided R-R intervals for time domain, frequency domain, Poincaré, and point correlation analyses and subsequent association wit...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000239330.45658.76
更新日期:2006-11-01 00:00:00
abstract:BACKGROUND:The number of elderly patients with frank or incipient Alzheimer's disease (AD) requiring surgery is growing as the population ages. General anesthesia may exacerbate symptoms of and the pathology underlying AD, so minimizing anesthetic exposure may be important. This requires knowledge of whether the contin...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181b5a292
更新日期:2010-02-01 00:00:00
abstract:UNLABELLED:The site for needle insertion in femoral nerve block varies significantly among various descriptions of the technique. To determine the site with the highest likelihood of needle-femoral nerve contact, femoral nerve block was simulated in a human cadaver model (17 femoral triangles from 9 adult cadavers). Fo...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199912000-00028
更新日期:1999-12-01 00:00:00
abstract:BACKGROUND:Functional blockade of peripheral nerves is the primary objective of local anesthesia, and it is often desirable to have a persistent blockade, sustained throughout and beyond a surgical procedure. Current local anesthetics give effective analgesia for <8-12 h after a single bolus injection. We report on an ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e318193596a
更新日期:2009-03-01 00:00:00
abstract:UNLABELLED:Although the importance of the nucleus raphe magnus in descending inhibitory control of nociception is clear, it is not known whether these effects are equivalent for different types of nociception. Thus, we examined the differential inhibition of behavioral responses evoked by A delta or C fiber thermonocic...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000094334.12027.06
更新日期:2004-02-01 00:00:00
abstract:UNLABELLED:Sudden profound hypotensive and/or bradycardic events (HBE) have been reported in >20% of patients undergoing shoulder arthroscopy in the sitting position under interscalene block anesthesia. Retrospective studies suggest that the administration of beta-blockers is safe and may decrease the incidence of thes...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-199812000-00020
更新日期:1998-12-01 00:00:00
abstract::Epidural anesthesia may be performed as a single injection or by staged doses. Thirty patients undergoing primary total hip replacement were randomly assigned to have epidural anesthesia using a single injection or a staged technique with 25 mL of 0.75% bupivacaine. Arterial plasma bupivacaine concentrations were sign...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1213/00000539-199408000-00019
更新日期:1994-08-01 00:00:00
abstract::Lidocaine catabolism under N2O anesthesia was evaluated in 5 dogs given a lidocaine infusion of 2 mg/kg/min for 20 minutes. Comparison of results with those of a prior similar study with halothane to be significantly faster in the animals given N2O. The extraction ratio for lidocaine, which did not vary with its arter...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-197605000-00007
更新日期:1976-05-01 00:00:00
abstract::Common practice during local anesthetic injection is to warn the patient using words such as: "You will feel a big bee sting; this is the worst part." Our hypothesis was that using gentler words for administration of the local anesthetic improves pain perception and patient comfort. One hundred forty healthy women at ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e3181cc5727
更新日期:2010-03-01 00:00:00
abstract::We studied the effects of noxious stimuli on arterial blood pressure, heart rate, pupil size, and the pupillary light reflex in 13 volunteers anesthetized with either isoflurane or propofol. Those given isoflurane (n = 8) were anesthetized twice, in a randomly selected order, once at an end-tidal concentration of 0.8%...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1213/00000539-199305000-00028
更新日期:1993-05-01 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:Multiple interventions have been tested in models of cardiopulmonary resuscitation (CPR) to optimize drug use, chest compressions, and ventilation. None has studied the effects of positive end-expiratory pressure (PEEP) on outcome. We hypothesized that because PEEP can reverse pulmonary atelectasis, lower pu...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181b278a3
更新日期:2009-10-01 00:00:00
abstract:UNLABELLED:To evaluate the efficacy and acceptance of a new posterior subgluteus approach to the sciatic nerve, as compared with the classic posterior approach, 128 patients undergoing foot orthopedic procedures were randomly allocated to receive either the classic posterior sciatic nerve block (Group Labat, n = 64) or...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-200110000-00049
更新日期:2001-10-01 00:00:00
abstract::Three types of catheters, the Arrow multi-orifice catheter, the American Edwards 7 Fr Swan-Ganz catheter and the Cook Bunegin-Albin multi-orifice CVP catheter were evaluated for their ability to retrieve venous air emboli and effect on the success rate of resuscitation from venous air emboli. The catheters were insert...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract:UNLABELLED:We investigated the effect of epidural local anesthetic blockade on urinary substance P levels in five patients suffering from painful flare-ups of interstitial cystitis. Urine was collected in 24-h intervals commencing at the onset of an epidural bolus of 0.25% bupivacaine followed by maintenance epidural i...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/01.ane.0000099362.01312.3a
更新日期:2004-03-01 00:00:00
abstract::In a double-blind, single-dose study hydroxyzine combined with morphine was administered intramuscularly to postoperative patients to determine the efficacy of this combination in the relief of postoperative pain, and to compare its effect to that produced by morphine alone. Eighty-two patients received morphine (5 or...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1980-09-01 00:00:00
abstract::This randomized double-blind study compared the hemodynamic and metabolic effects of pancuronium and vecuronium during treatment of shivering after cardiac surgery with hypothermic cardiopulmonary bypass. Thirty sedated and pain-free patients who shivered after cardiac surgery were treated with pancuronium (n = 15) or...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1213/00000539-199409000-00012
更新日期:1994-09-01 00:00:00
abstract::The effects of epidural chloroprocaine with and without 1:200,000 epinephrine during labor and delivery on uterine activity, progress of labor, fetal heart rate, maternal blood pressure, newborn Apgar scores, neonatal acid-base status, and the Neurologic and Adaptive Capacity Scoring System (NACS) were compared in 28 ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND:The pattern and magnitude of the hyperglycemic response to surgical stress, the added effect of low-dose steroids, and whether these differ in diabetics and nondiabetics remain unclear. We therefore tested 2 hypotheses: (1) that diabetics show a greater increase from preoperative to intraoperative glucose co...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e318288416d
更新日期:2013-05-01 00:00:00