IMPLICATIONS: In postmenopausal women undergoing cardiac surgery, a neurocognitive deficit 4 to 6 wk after surgery was associated with postoperative impairment in physical components of quality of life and independent activities of daily living. Some aspects of quality of life in postmenopausal women may not be amenable to improvements with cardiac surgery.
IMPLICATIONS: We validated a dynamic insulin regimen to control intraoperative and postoperative blood glucose levels in nondiabetic and diabetic cardiac surgical patients. The Aalst Glycemia Insulin Protocol was effective for maintaining perioperative glycemic control (80-110 mg/dL) with a very low incidence of hypoglycemia (<60 mg/dL).
IMPLICATIONS: Clevidipine is effective and well tolerated in the IV treatment of acute hypertension after cardiac surgery. It demonstrates rapid onset, selective arterial dilation, and titratable blood pressure-decreasing effect.
IMPLICATIONS: This study describes the prevalence of and risk factors for adverse events in children receiving patient-controlled analgesia by proxy (PCA-P) and PCA. A significant number of children receiving these therapies experience clinically significant events, warranting close monitoring throughout the use of PCA-P and PCA.
IMPLICATIONS: The partial pressure of sevoflurane required to maintain the bispectral index near 50 during laparoscopic surgery was identical in patients exposed to intraoperative music and in those not exposed to music. Previous work suggests that music reduces preoperative stress and may be useful when providing sedation; however, our results do not support the use of music during surgery.
IMPLICATIONS: The present study demonstrated that dexmedetomidine and other {alpha}-2 adrenoceptor agonists enhanced the local anesthetic action of lidocaine at the periphery. Thus, they have potential as a new adjunct to local anesthetics and may increase the reliability and efficacy of regional anesthesia.
IMPLICATIONS: It has been reported that propofol increases cerebral endocannabinoid concentrations. We found that the sedative effect of a low propofol concentration was abolished by 50 mg/kg delta9-tetrahydrocannabinol (D9-THC) that produced no sedation when given alone. Our results indicate a dose-dependent antagonistic interaction between D9-THC and propofol.
IMPLICATIONS: We found strong evidence that morphine and hydromorphone, in contrast to fentanyl type opioids, specifically interact with human 5-HT3A receptors. Since 5-HT3 receptors are involved in the mediation of emesis, future clinical studies could test whether corresponding differences in emetogenicity will be found.
IMPLICATIONS: In patients with sickle cell disease, onset of the neuromuscular blocking effect of atracurium is prolonged but the duration of action is unchanged. Neuromuscular monitoring may guide the time of laryngoscopy in these patients.
IMPLICATIONS: At steady concentrations of propofol, bispectral index (BIS) exhibits less variability than AAI1.6. BIS shows a better agreement to the concentration of propofol, whereas the AAI1.6 may detect recovery of consciousness more accurately than the BIS.
IMPLICATIONS: TOSCA, a new combined pulse oximetry and transcutaneous Pco2 sensor, is easy to use and safe for very low birth weight infants. The pulse oximeter measurements may be useful for titrating oxygen therapy. Pco2 measurement is most useful as a trend monitor and independent confirmation of arterial Pco2 is required if an accurate value is needed.
IMPLICATIONS: Residual neuromuscular blockade may contribute to adverse respiratory outcomes in the postanesthesia care unit. In this investigation, we observed evidence of incomplete neuromuscular recovery in the majority of patients with critical respiratory events after general anesthesia.
IMPLICATIONS: Morbidly obese subjects with and without obstructive sleep apnea, experienced significant episodic hypoxemia after laparoscopic bariatric surgery. Obstructive sleep apnea did not increase the incidence or the severity of the hypoxemic episodes.
IMPLICATIONS: A prospective, randomized, blinded, clinical trial was conducted to assess the effectiveness of the GlideScope for nasotracheal intubation. When compared with direct laryngoscopy, GlideScope videolaryngoscopy was faster, easier, and resulted in a much lower incidence of sore throat postoperatively.
IMPLICATIONS: Beyond traditional preoperative cardiac risk stratification using the revised cardiac risk index, we determined that the presence of peripheral arterial disease, detected by an abnormally low ankle-to-arm blood pressure index (AAI), is an independent predictor for perioperative cardiac events in patients undergoing noncardiac surgery.
IMPLICATIONS: Whether the security system is active or passive, safety IV catheters do not have a greater incidence of placement failure than standard catheters. Users feel better protected, but find their use more difficult, and their handling generates more splashing of blood into the environment.
IMPLICATIONS: Dexmedetomidine is an effective sedative drug for patients in whom noninvasive ventilation is difficult because of agitation.
IMPLICATIONS: Sevoflurane dose-dependently dilates the feto-placental vasculature by a mechanism mediated in part via the lipoxygenase pathway and independent of nitric oxide and the cyclooxygenase pathway.
IMPLICATIONS: The percentage of anesthesiology faculty members who are women has increased over the past two decades, as has the number of women who are department chairs and women in leadership positions in anesthesiology subspecialty and academic societies. However, women remain markedly under-represented at the full professor level, and the rate of increase in women in academic anesthesiology lags behind the increase in women who are medical students and anesthesiology residents.
IMPLICATIONS: Anesthesia information management systems can be used to aggregate preoperative data to provide an epidemiological snapshot of outpatient community care. At our hospital, there was a significant gender disparity in preoperative use of {beta}-blockers, statins, and aspirin in patients with coronary artery disease undergoing elective noncardiac surgery.
IMPLICATIONS: Because myogenic motor-evoked potentials (MEPs) are very sensitive to suppression by anesthetic and neuromuscular blocking drugs, the techniques to augment MEP responses are desirable under anesthesia. We report that the application of tetanic stimulation to the left tibial nerve before transcranial stimulation augmented the amplitudes of MEPs from the muscles without tetanic nerve stimulation and those with tetanic nerve stimulation.
IMPLICATIONS: This is a prospective study of 22 patients who underwent hip fracture fixation surgery. Using transcranial Doppler during the surgery, signals of solid and gas microemboli in the cerebral circulation were detected in nine of these patients.
IMPLICATIONS: Pseudomeningocele, a cerebrospinal fluid collection, which can occur after spine surgery, may result in life-threatening airway compromise intraoperatively.
IMPLICATIONS: Intrathecal fluorescein is sometimes used to facilitate the diagnosis and localization of cerebrospinal fluid leaks. We report a case of status epilepticus after intrathecal administration of fluorescein. Anesthesia providers should be aware of complications associated with intrathecal fluorescein use and be prepared to manage neurologic complications during the perioperative period.
IMPLICATIONS: Gender issues affect all aspects of transplantation, including diagnoses leading to transplantation, willingness to be a living donor, access to transplantation, and transplant outcomes.
IMPLICATIONS: Normal saline, Ringer's lactate and Plasmalyte solutions can be safely used during uncomplicated, short-duration renal transplants; however, the best metabolic profile is maintained in patients who receive Plasmalyte.
IMPLICATIONS: Vanilloid agonists (capsaicin, resiniferatoxin) applied to the peripheral nerves provide conduction blockade. In contrast to the analgesic component of conduction anesthesia produced by local anesthetics, vanilloid agonists provide conduction analgesia not associated with suppression of motor or sensory functions not related to pain. The article summarizes data suggesting the clinical applicability of vanilloid-induced conduction analgesia.
IMPLICATIONS: We performed a randomized double-blind study of wound instillation of purified capsaicin versus placebo on postherniotomy pain. Capsaicin-treated patients had significantly less pain during the first 3-4 days postoperatively.
IMPLICATIONS: Intraarticular tramadol plus bupivacaine provides a longer duration of analgesia than either drug alone after arthroscopic knee surgery.
IMPLICATIONS: With the increase in number of knee surgeries being performed, postoperative analgesic management remains a challenge. The present study uses a new animal knee surgery model to characterize pain-related behavior in the rat, and its alleviation with systemic and intrathecal drug treatment.
IMPLICATIONS: Long-term, selective blockade of nociceptor fibers can be accomplished by resiniferatoxin through a novel, nontoxic mechanism that depresses excitability by reversible internalization of Na+ channels. The fundamental cellular mechanism of this action might be exploited to design other drugs that also provide peripheral analgesia.
IMPLICATIONS: We studied long-term survival after resection of colon cancer in a trial of general anesthesia with and without epidural anesthesia and analgesia supplementation. Epidural anesthesia was associated with improved survival among patients with stage 0-II disease for the first 1.46 years, but a trend toward poorer survival for the next 8.5 years, and no effect on survival of patients with stage III-IV disease.
IMPLICATIONS: Administered with or without epidural volume extension, plain bupivacaine appears to be more effective requiring a smaller dose and producing a higher sensory block with an earlier onset than to hyperbaric bupivacaine. There is no clinical utility of epidural volume extension application to intrathecal hyperbaric bupivacaine, since it failed to decrease the dose or raise the level of block, when combined spinal epidural was performed in the sitting position.
IMPLICATIONS: Continuous paravertebral nerve blocks can provide effective postoperative analgesia after abdominal and thoracic surgery. We reviewed the patient-controlled analgesia consumption, pain scores, and complications of 110 patients who received a paravertebral catheter via the intercostal approach and found low narcotic consumption, low pain scores, and no clinically significant complications.
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