Abstract:
UNLABELLED:Volatile anesthetics attenuate baroreflex function in a concentration-dependent manner. This study was designed to determine how long full recovery of baroreflex control of heart rate takes after isoflurane or sevoflurane anesthesia in healthy volunteers. We assessed baroreflex sensitivity in 20 subjects randomized to receive either isoflurane or sevoflurane (n = 10 each). After an 8- to 10-h fast and no premedication, mea- surements of R-R intervals obtained from the electrocardiogram (lead II) and systolic blood pressure (SBP) measured through a radial artery catheter were made at conscious baseline and 20, 60, and 120 min after the induction during end-tidal isoflurane 1.3% or sevoflurane 2.0% in air and oxygen, and 20, 60, 120, and 180 min after the emergence from general anesthesia. Baroreflex responses were triggered by bolus IV injection of phenylephrine and nitroprusside to increase and decrease SBP by 15-30 mm Hg, respectively. The linear portions of the baroreflex curves relating R-R intervals and SBP were determined to obtain baroreflex sensitivity. During anesthesia, baroreflex sensitivities of both the pressor and depressor tests were decreased by 50%-60% compared with conscious baseline values in both groups (P <0.05). Pressor test sensitivities returned to the baseline values at 120 min, whereas depressor test sensitivities returned to the baseline values at 60 min, after general anesthesia in both groups. There were no significant differences in baroreflex sensitivities between groups at any interval. Our results indicate that the recovery characteristics of baroreflex sensitivity are similar after isoflurane and sevoflurane anesthesia and that the depressor test sensitivity is restored more rapidly than the pressor test sensitivity after both anesthetic techniques. IMPLICATIONS:Arterial baroreflex function is an important neural control system for maintaining cardiovascular stability. The authors found that 2 h was required for full recovery of baroreflex function and that recovery characteristics were similar after isoflurane and sevoflurane anesthesia in healthy volunteers not undergoing surgery.
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Nagasaki G,Tanaka M,Nishikawa Tdoi
10.1097/00000539-200111000-00012subject
Has Abstractpub_date
2001-11-01 00:00:00pages
1127-31issue
5eissn
0003-2999issn
1526-7598journal_volume
93pub_type
临床试验,杂志文章,随机对照试验abstract:BACKGROUND:In this study we sought to determine and compare the minimum local anesthetic volumes (MLAV) and doses (MLAD) of two concentrations of bupivacaine for epidural pain relief in labor, and to quantify the effect on dose. METHODS:Eighty women were randomized in a double-blind manner to receive a first bolus of ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/01.ane.0000252458.20912.ef
更新日期:2007-02-01 00:00:00
abstract:IMPLICATIONS:We measured plasma propofol levels by head space-gas chromatography analysis using solid-phase microextraction. This method saves time, and does not require elimination of interfering substances in the plasma. The coefficient variation was +/-5% to +/-30%. The detection limit was 10 ng/mL. ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200006000-00038
更新日期:2000-06-01 00:00:00
abstract::An in-vitro experiment demonstrated the concentration effect of N2O (3% versus 75%) during elimination and during uptake. Other pulmonary absorption-excretion phenomena also occur simultaneously, as paired events during uptake and then during elimination:diffusion hyperoxia and diffusion anoxia; alveolar concentration...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-197601000-00013
更新日期:1976-01-01 00:00:00
abstract:UNLABELLED:We selected bis [N-(3,4-diacetoxybenzyl) tropanium-3alpha-yl] glutarate dibromide (TAAC3) from many new tropinyl diester derivatives to evaluate its neuromuscular blocking (NMB) and autonomic side effects on anesthetized rats, rabbits, guinea pigs, cats, pigs, dogs, and monkeys. NMB potency, onset, recovery ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200204000-00020
更新日期:2002-04-01 00:00:00
abstract:BACKGROUND:Sedatives and analgesics, in doses that alter consciousness in the intensive care unit (ICU), contribute to delirium and mortality. Pain, agitation, and delirium can be monitored in ICU patients. These symptoms were noted before (PRE) and after (POST) a protocol to alleviate undesirable symptoms. Analgesia a...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181d7e1b8
更新日期:2010-08-01 00:00:00
abstract::Twenty-four male patients scheduled for elective pulmonary resection were studied to determine whether continuous insufflation of oxygen to the nonventilated lung would reduce intrapulmonary shunting (Qs/Qt) and arterial oxygen desaturation. Measurements of physiologic variables were made using pulmonary arterial and ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1982-06-01 00:00:00
abstract::We designed a prospective, randomized, double-blind study to evaluate the efficacy of the combination of intrathecal sufentanil with a low dose of local anesthetic in an attempt to prolong analgesia in labor. Fifty-two patients received one of the following intrathecal study solutions: 2.5 mg of bupivacaine; 10 microg...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-199508000-00017
更新日期:1995-08-01 00:00:00
abstract:BACKGROUND:The incidence and implications of anti-heparin-platelet factor 4 (PF4) antibody seroconversion in the pediatric cardiac surgical population remain largely unexplored. We sought to prospectively characterize the incidence of seroconversion in two populations: neonates undergoing primary cardiac surgery and ch...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e3181734604
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND:Human immunodeficiency virus (HIV)-related painful sensory neuropathies primarily consist of the HIV infection-related distal sensory polyneuropathy and antiretroviral toxic neuropathies. Pharmacotherapy provides only partial relief of pain in patients with HIV/acquired immune deficiency syndrome because lit...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000729
更新日期:2015-06-01 00:00:00
abstract::With the increased use of intraoperative transesophageal echocardiography, patent foramen ovale (PFO) has become a common finding during heart surgery. This finding presents a difficult dilemma for cardiac surgeons, since the impact of intraoperatively diagnosed PFOs on postoperative outcome is unknown. Changes in the...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/01.ane.0000278735.06194.0c
更新日期:2007-09-01 00:00:00
abstract:UNLABELLED:Shoulder surgery is often performed with patients in the sitting position under interscalene block anesthesia. Vasovagal episodes, characterized by a sudden decrease in heart rate and/or blood pressure, have a reported incidence of 17%-24% in this setting. We performed a retrospective study to determine whet...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:In this prospective, randomized, observer-blinded trial, we compared ultrasound-guided subparaneural popliteal sciatic nerve blocks performed either at or proximal to the neural bifurcation (B). We hypothesized that the total anesthesia-related time (sum of performance and onset times) would be decreased wit...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e31828a73be
更新日期:2013-05-01 00:00:00
abstract::Agreement between estimated fibrinogen concentration via thromboelastography and traditional assays is not established in the parturient. We therefore recruited 56 parturients and performed Clauss and functional fibrinogen level (FLEV) tests. Mean difference of measurements was 36.8 mg/dL (95% CI, 21.8-51.9) with a st...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000003301
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Ten to fifteen percent of awake patients develop neurological deficits secondary to cerebral hypoperfusion after carotid artery cross-clamping. The reversal of such deficits by increasing the inspired oxygen fraction (Fio(2)) has been demonstrated, and regional cerebral oxygenation (rSO(2)) has been shown to...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0b013e3181c5f160
更新日期:2010-02-01 00:00:00
abstract::Cytokine release during surgery can produce a long-lasting hyperalgesia. Thus, preoperatively-administered cytokine inhibitors might reduce the production of cytokines, decreasing central nervous system sensitization and improving the quality of postoperative pain relief. We investigated the hypothesis that preincisio...
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.0000132974.32249.C8
更新日期:2004-11-01 00:00:00
abstract:BACKGROUND:With health care practice consolidation, the increasing geographic scope of health care systems, and the advancement of mobile telecommunications, there is increasing interest in telemedicine-based health care consultations. Anesthesiology has had experience with telemedicine consultation for preoperative ev...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000005208
更新日期:2020-12-01 00:00:00
abstract:BACKGROUND:Although studies have compared safety and outcomes of radial artery cannulation with other arterial catheterization locations, there is insufficient information describing brachial artery catheterization. In this study, we characterized the perioperative use patterns and the complication rates associated wit...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000082
更新日期:2014-02-01 00:00:00
abstract::Alfentanil causes cardiac stimulation or depression in intact animals and in clinical practice; there is no information concerning its direct effects on the heart. Therefore, we studied the effects of alfentanil on isolated cardiac tissues from young adult rabbits. The right atrium with sinoatrial node (SA node) was b...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199009000-00009
更新日期:1990-09-01 00:00:00
abstract::Clonidine is effective in treating sevoflurane-induced postanesthesia agitation in children. We conducted a study on 169 children to quantify the risk reduction of clonidine agitation in patients admitted to our day-surgery pediatric clinic. Children were randomly allocated to receive clonidine 2 mug/kg or placebo bef...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/01.ANE.0000184204.81877.53
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND:Safe and effective alternatives are required in labor when epidural analgesia is not appropriate. We hypothesized that patient-controlled IV remifentanil labor analgesia would not be inferior to patient-controlled epidural labor analgesia. METHODS:This randomized nonblinded controlled noninferiority study i...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e3182a7cd1b
更新日期:2014-03-01 00:00:00
abstract::Intraoperative hypoxia occurred in two patients during the maintenance of the medical gas system. Engineers were purging oxygen pipelines with nitrogen to remove particulate debris but were unaware of a connection to operating room pipelines. This case illustrates the importance of communication between anesthesia pro...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200007000-00045
更新日期:2000-07-01 00:00:00
abstract::To determine the effect of liver disease on the pharmacokinetics of rocuronium, the authors administered 0.6 mg/kg (twice the ED95) to 10 patients with liver disease and compared these results to values in 10 healthy surgical patients. Anesthesia was induced with thiopental and maintained with isoflurane (0.9%-1.1% en...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199504000-00018
更新日期:1995-04-01 00:00:00
abstract::During Gram-negative sepsis, endotoxin lipopolysaccharide (LPS) may activate host inflammatory responses, resulting in the systemic inflammatory response syndrome and the adult respiratory distress syndrome. In cell culture systems, LPS activation of cellular responses may be potentiated by plasma proteins. In the iso...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199608000-00008
更新日期:1996-08-01 00:00:00
abstract::The extent of sensory and motor blockades was examined in 195 patients 5 and 20 min after four different techniques of brachial plexus block using 50 ml of 0.5% bupivacaine. The interscalene technique of Winnie (N = 50) resulted in a preferential blockade of the caudad portions of the cervical plexus and the cephalad ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract:BACKGROUND:Skeletal muscle failure in critical illness (intensive care unit-acquired weakness) is a well-known complication developing early during intensive care unit stay. However, muscle weakness during the perioperative setting has not yet been investigated. METHODS:We performed a subgroup investigation of a prosp...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1213/ANE.0000000000004068
更新日期:2020-02-01 00:00:00
abstract::We tested the hypothesis that middle ear pressure (MEP) is influenced by the choice of airway device during anesthesia with or without nitrous oxide (N2O) in the gas mixture. Eighty consecutive anesthetized, paralyzed ventilated patients (ASA physical status I-II, 18-65 yr) were randomly allocated for airway managemen...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/01.ANE.0000180768.81020.C4
更新日期:2006-01-01 00:00:00
abstract::The effects of three anesthetic techniques on liver function were compared in patients with mild alcoholic hepatitis who required surgery, both peripheral and superficial. Thirty patients were randomly assigned to receive one of three anesthetics: thiopental, nitrous oxide and oxygen, enflurane, plus muscle relaxant; ...
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:1985-05-01 00:00:00
abstract:BACKGROUND:The impact of physiological adjustments throughout pregnancy on maternal vital signs and laboratory values has yet to be fully defined. The present study was designed to determine the normal range of these parameters among healthy pregnant women during the peripartum period. METHODS:This is a retrospective ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0000000000003866
更新日期:2019-12-01 00:00:00
abstract::To evaluate the effects of high-frequency jet ventilation (HFJV) (f = 60, 120 breaths/min) and conventional mechanical ventilation (CMV) (f = 10, 20) during equivalent conditions of cardiac tamponade, stroke index (SI), intrapericardial pressure (IPP), airway pressure (P(aw)), and cardiac pressures were measured in an...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/00000539-199004000-00006
更新日期:1990-04-01 00:00:00
abstract::In this study we investigated the effects of a racemic mixture of bupivacaine (RS(+/-)bupivacaine) and its isomers (S(-)bupivacaine and R(+)bupivacaine) on the Ca2+ handling by ventricular myocytes from Wistar rats. Single ventricular myocytes were enzymatically isolated and loaded with the fluorescent Ca2+ indicator ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000195341.65260.87
更新日期:2006-03-01 00:00:00