IMPLICATIONS: We retrospectively examined the frequency of cardiac myonecrosis (troponin I release >0.2 ng/mL) in patients who had either statin therapy discontinued or resumed immediately after major vascular surgery. Discontinuation of statin therapy was associated with an increased postoperative cardiac risk, suggesting that statin therapy should be resumed early after major vascular surgery.
IMPLICATIONS: Experimental data suggest that morphine has unique antiinflammatory properties. In this randomized, double-blind, clinical trial, we observed that morphine attenuates the inflammatory response to cardiopulmonary bypass compared with a fentanyl-based balanced anesthetic technique.
IMPLICATIONS: In this observational study of elective cardiac surgery patients we demonstrate a consistent decrease in plasminogen activator inhibitor-1 (PAI-1) mRNA production after cardiopulmonary bypass. The extent of the decrease was related to PAI-1 genotype. In addition, we describe an association between PAI-1 4G/5G genotype and a propensity to receive coagulation blood products early after cardiac surgery.
IMPLICATIONS: In children with obstructive sleep apnea syndrome, in the neutral neck position, anesthesia induced an occluded airway and changed heart rate variability (HRV). Relief of the occluded airway by jaw thrust and lateral positioning returned HRV to preanesthetic levels. These changes in HRV paralleled the improved stridor scores.
IMPLICATIONS: This study compares caudal clonidine, morphine, and hydromorphone in children undergoing ureteral reimplantation procedures and concludes that caudal clonidine provides comparable analgesia with fewer side effects.
IMPLICATIONS: Functional residual capacity (FRC) and ventilation distribution decreased significantly at a fraction of inspired oxygen (Fio2) of 1.0 compared with an Fio2 of 0.3 when children were ventilated with a very low positive end-expiratory pressure (PEEP) of 3-cm H2O. These changes in FRC and ventilation distribution were prevented by the continuous administration of PEEP of 6-cm H2O.
IMPLICATIONS: No significant benefit was found in treating patients who failed ondansetron 4 mg prophylaxis with granisetron in doses of either 0.1 or 1 mg.
IMPLICATIONS: In a randomized, placebo-controlled, double-blind trial, an IV bolus of magnesium sulfate 4 g, administered after anesthetic induction in patients undergoing ambulatory ilioinguinal hernia repair or varicose vein operations under general anesthesia, had no impact on postoperative pain and analgesic consumption.
IMPLICATIONS: The pivotal role of the anesthesiologist as the key perioperative physician in facilitating the recovery process has assumed increased importance in the current fast-track recovery environment. The choice of premedication, anesthetic, analgesic and antiemetic drugs, as well as cardiovascular, hormonal, and fluid therapies, can influence the ability to fast-track patients after elective surgery.
IMPLICATIONS: Brief opioid exposure can enhance pain sensitivity. We investigated subhypnotic concentrations of propofol on remifentanil-induced hypersensitivity in an experimental human pain model. Propofol delayed and decreased, but did not completely antagonize, remifentanil-induced anti-analgesia. This may explain the increased demand for analgesics after remifentanil-based anesthesia.
IMPLICATIONS: Halothane, isoflurane, and pentobarbital protected mice against noise-induced hearing loss and hair cell damage and inhaled anesthetics were more effective than pentobarbital.
IMPLICATIONS: This study demonstrates that patients undergoing major liver surgery have a decreased morphine clearance. The impaired morphine metabolism is associated with an increased incidence of sedation.
IMPLICATIONS: Glutamatergic neurons are important targets for anesthetic action. We examined the ability of riluzole, which inhibits glutamate release from nerve terminals, to produce components of the anesthetic state. Our findings suggest that riluzole-induced loss of consciousness, immobility, and antinociception are associated with inhibition of glutamatergic neurotransmission in the central nervous system.
IMPLICATIONS: The functional relevance of {gamma}-aminobutyric acid (GABA)-ergic inhibitory neurotransmission in mediating essential components of anesthesia is unknown. We examined the ability of increased GABA levels to produce behavioral components of anesthesia. Our findings suggest that unconsciousness and immobility are mediated through different neuronal pathways and/or regions in the central nervous system.
IMPLICATIONS: Ammonia is a metabolite with anesthetic-like effects on both anesthetic-sensitive ion channels and in whole animals.
IMPLICATIONS: Lidocaine and procaine enhanced glycine receptor function at low concentrations and inhibited glycine and {gamma}-aminobutyric acid type A receptors functions at high concentrations. The mechanism of the local anesthetic (LA)-induced enhancement of glycine receptor function probably differs from that of general anesthetics. These findings may explain the pharmacological effects of LAs, such as antinociception and convulsion.
IMPLICATIONS: Accurate estimates of t1/2Keo are critical for effect-compartment dosing in IV anesthesia. We compared the pharmacokinetic/pharmacodynamic and mass-balance methods for propofol, methohexital, and ketamine in a sheep model. Both methods give similar values for t1/2Keo. Methohexital crosses into the brain much faster than either propofol or ketamine.
IMPLICATIONS: Although the two sevoflurane products available in the United States are rated therapeutically equivalent, there are differences in the manufacturing processes between Ultane(R) and generic sevoflurane. They are also packaged in different containers. The quantities of impurities are, however, low and qualitative differences minor and unlikely to be of clinical significance.
IMPLICATIONS: We provide the first documentation of cytochrome P450 2E1 IgG4 autoantibodies, as well as 58 kDa endoplasmic reticulum protein and trifluoroacetyl chloride hapten-specific IgG4 antibodies, in a patient who developed hepatitis after desflurane anesthesia. These findings suggest that allergic and autoimmune mechanisms have critical roles in the development of desflurane-induced liver injury.
IMPLICATIONS: Evaluation of records created using an anesthesia information system indicates that documentation is often incomplete. Further study is necessary to understand the relationship between the system design and completeness of documentation.
IMPLICATIONS: Timely administration of prophylactic antibiotics can be improved by adding a visual reminder to the display of an anesthesia information system.
IMPLICATIONS: Differences in academic performance among anesthesia residents were not due to differences in rate of learning, but baseline differences in affective-motivational variables: level of anxiety related to study and achievement, motivation for learning and for personal improvement, and ability to select main ideas from subject matters to which residents are exposed during learning episodes.
IMPLICATIONS: Icodextrin, a peritoneal dialysate commonly used in the renal failure patient with diabetes, may lead to an overestimation of blood glucose levels as determined by bedside glucometers. Failure to communicate this information to all caregivers may lead to inappropriate treatment and patient mortality.
IMPLICATIONS: Large volume crystalloid resuscitation may enhance coagulation. This procoagulant effect may be attenuated by magnesium.
IMPLICATIONS: Bispectral Index did not reduce propofol consumption or speed arousal times in patients with movement disorders undergoing deep brain stimulation.
IMPLICATIONS: In rabbits, dexmedetomidine produces a dose-dependent suppression of motor evoked potentials (MEPs). Use of multipulses allowed MEPs to be recorded at 50 {micro}g/kg/h of dexmedetomidine
IMPLICATIONS: This retrospective study demonstrates that the levels of anesthesia needed to provide unconsciousness and immobility during magnetoencephalography(MEG) studies do not significantly alter the likelihood of recording interictal epileptiform spike activity with MEG.
IMPLICATIONS: The duration of electrocerebral silence after intracarotid bolus injection of propofol during cerebral hypoperfusion was related to the transit time of the propofol emulsion. In the cerebral circulation, the effects of highly lipid-soluble drugs are a function of the time available for the drug to diffuse across the blood brain barrier.
IMPLICATIONS: Using rat and dog models of nociception, we have demonstrated contulakin-G to be highly effective, with minimal side effects, when delivered as an intrathecal bolus.
IMPLICATIONS: This study determined the time course that a dose of CGX-1160 lasts after spinal administration into beagle dogs. This agent is a man-made derivative from a peptide toxin naturally found in marine snails that has been shown to possess analgesic activity.
IMPLICATIONS: Preoperative parecoxib does not provide clinically significant preemptive analgesia. However, perioperative parecoxib provides substantial postoperative analgesia after total hip arthroplasty for the first 24 h after surgery without increasing perioperative bleeding.
IMPLICATIONS: Liposome encapsulation enhanced the anesthetic properties of ropivacaine, which was comparable with EMLA in reducing pain and discomfort during needle insertion into the oral mucosa.
IMPLICATIONS: Systematically searched randomized trials do not provide convincing evidence that perioperative magnesium may have favorable effects on postoperative pain intensity and analgesic requirements. Perioperative magnesium supplementation prevents postoperative hypomagnesemia and decreases the incidence of postoperative shivering.
IMPLICATIONS: This prospective, randomized, double-blind study evaluated the incidence and severity of propofol injection pain after pretreatment with remifentanil, premixing propofol with lidocaine, or the combination of both. The combination of remifentanil and lidocaine significantly reduced the incidence of mild pain and completely abolished moderate and severe pain as compared to either drug alone.
IMPLICATIONS: This systematic review shows that preoperative administration of gabapentin/pregabalin reduces postoperative pain intensity, opioid consumption, and opioid-related adverse effects without major risks. Studies defining optimal dosing, duration of the treatment, and effects on chronic pain are needed.
IMPLICATIONS: Spinal cord stimulation for refractory complex regional pain syndrome of less than 1 yr duration may be effective as measured by decreased opioid intake, participation with physical rehabilitation, and retention on active military duty. These observations should be interpreted cautiously based on the short duration of postimplantation follow-up and the small number of cases presented.
IMPLICATIONS: The authors used spinal anesthesia in a patient with congenital insensitivity to pain with anhidrosis for surgery on both knees without complications. Spinal anesthesia may be a useful alternative to general anesthesia in such patients if they are cooperative.
IMPLICATIONS: Propofol may interact with peripheral cannabinoid receptors to alter facilitated pain states initiated by local inflammation.
IMPLICATIONS: Patients with chronic pain frequently suffer affective disorders. To study the relationship between pain and affective disorders, we examined anxiety and depression-related behaviors in mice subjected to spinal nerve ligation. Nerve injury can trigger affective disturbances in mice that appear much later than sensory hypersensitivity.
IMPLICATIONS: In this prospective observational study involving 1398 continuous peripheral nerve catheters, serious complications, such as permanent nerve damage, and major bleeding, were rare. However, minor complications, including vascular puncture and local inflammation, were more common.
IMPLICATIONS: During high (T1 2) epidural analgesia, the tip of the epidural catheter should be at the upper margin of the level to be blocked and neck flexion may cause an unwanted cervical block.
IMPLICATIONS: Insulin resistance is a feature of the endocrine stress response to surgery. In this study, epidural anesthesia and analgesia, compared with general anesthesia and patient-controlled analgesia, decreased the incidence of insulin resistance immediately after surgery and 48 h postoperatively in patients who were insulin-resistant before surgery.
IMPLICATIONS: In patients undergoing short perianal procedures, very low dose bupivacaine spinal block led to earlier readiness to home discharge, was without side effects, and was associated with a high degree of patient satisfaction.
To see an article, click its [Full Text] or [PDF] link. To review many abstracts, check the boxes to the left of the titles you want, and click the 'Get All Checked Abstract(s)' button. To see one abstract at a time, click its [Abstract] link.