Articles: analgesia.
-
Regional anesthesia · Jul 1994
Comparative StudyProlonged analgesia with liposomal bupivacaine in a mouse model.
Currently available local anesthetics have relatively limited duration of action and some may cause severe systemic toxicity. An ultralong lasting local anesthetic would be useful to produce prolonged intraoperative anesthesia and extended postoperative analgesia. The goal of this study was to synthesize a sustained release local anesthetic formulation that would produce prolonged sensory block and decrease the possibility of systemic toxicity. ⋯ This study shows that liposomal encapsulation of bupivacaine significantly prolongs duration of action and greatly decreases systemic toxicity of the drug. These findings may be promising for the future production of formulations of ultralong lasting local anesthetics with enhanced efficacy and safety.
-
Regional anesthesia · Jul 1994
Randomized Controlled Trial Comparative Study Clinical TrialSubarachnoid labor analgesia. Fentanyl and morphine versus sufentanil and morphine.
To compare the duration of pain relief and incidence of side effects using two subarachnoid administered drug combinations for labor analgesia: fentanyl 25 micrograms with morphine 0.25 mg or sufentanil 10 micrograms with morphine 0.25 mg. ⋯ Both fentanyl and morphine and sufentanil and morphine provide adequate labor analgesia for about 2 hours. Patients who receive sufentanil experience more severe pruritus.
-
Int J Obstet Anesth · Jul 1994
Anesthetic management of a parturient with mixed mitral valve disease and uncontrolled atrial fibrillation.
This case report describes the anesthetic management of a 32-year-old parturient with combined severe mitral regurgitation and moderate mitral stenosis, complicated by fast atrial fibrillation. The advantageous effects of epidural analgesia during labor and vaginal delivery and the importance of invasive monitoring are discussed. We also report the rare complication of right bundle branch block related to the use of a pulmonary artery catheter.
-
Randomized Controlled Trial Comparative Study Clinical Trial
Continuous administration of fentanyl for postoperative pain: a comparison of the epidural, intravenous, and transdermal routes.
To evaluate the influence of the route of administration [epidural, intravenous (IV), or transdermal] on onset and quality of analgesia and to evaluate the pharmacokinetics of continuous administration of fentanyl. ⋯ The epidural, transdermal, and IV administration of identical doses of fentanyl given at a constant rate provided almost equivalent degrees of analgesia. But continuing epidural administration produced a steady rise in systemic fentanyl concentrations into the ventilatory-depressant range, affecting the hypoxemic regulation of breathing.