Obstetric anesthesia with trichlorethylene, nitrous oxide, and oxygen.
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This study examined the effects of carefully controlled amounts of analgesic premedications and anesthetics administered to mothers during delivery on the behavior of the newborn over the first ten days of life. The subjects were selected to minimize the synergistic effects of medication and other stress factors, such as abnormalities of pregnancy, labor, or delivery. The effects of these drugs on the behavior of these infants was small. The data provide a picture of the behavioral recovery of a group of minimally stressed newborns.
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BACKGROUND AND OBJECTIVE: The aim of this arm of the ANESCAT 2003 study was to describe obstetric anesthesia and analgesia practice in Catalonia, Spain. PATIENTS AND METHOD: Using information obtained from a survey of anesthesia performed in Catalonia in 2003, data was identified on anesthesia for obstetric procedures: labor, cesarean section, and others unrelated to childbirth. Patient characteristics were analyzed along with anesthetic techniques and the rates at which they are used in the population. RESULTS: Obstetric procedures were performed in 71 hospitals (54% of the hospitals surveyed). Obstetric anesthesia represented 11.3% of total anesthesia practice, corresponding to an estimated 67,864 anesthetic procedures per year. Of those procedures, 87.7% were associated with labor and childbirth. An estimated 82% of the 71,851 births in Catalonia were assisted by an anesthesiologist. Cesarean sections accounted for 25.1% of births and the rate increased with age. Regional anesthesia for labor and cesarean section was used in 98.7% and 96.2% of cases, respectively. Epidural anesthesia was used in 96.9% of vaginal births. In elective and emergency cesarean sections, spinal block was used in 75.5% and 44.8% of cases, respectively, while epidural anesthesia was used in 23.3% and 53.3%, respectively. CONCLUSIONS: The anesthesia coverage for labor in Catalonia is the highest published. The use of regional anesthetic techniques in Catalonia is also the highest recorded. Although continuous epidural anesthesia is the most widely used technique, spinal block is also increasingly employed.
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OBJECTIVES: To report our experience in managing anesthesia during obstetric delivery of women with myasthenia gravis (MG) and to review the anesthetic technique of choice for vaginal or cesarean delivery in such cases. PATIENTS AND METHODS: Fifteen pregnancies in 12 patients were recorded between 1980 and 1996; 14 cases were documented. Disease course during pregnancy, delivery and postpartum, the course of pregnancy, the presence of severe neonatal myasthenia and anesthetic treatment during vaginal or cesarean delivery were analyzed. RESULTS: Improvement in MG was observed in 6 cases. No change was seen in 4 patients and 3 worsened. In one woman generalized MG debuted 15 days after delivery. Two neonates were premature and a third suffered severe neonatal myasthenia. Six vaginal deliveries were aided by forceps; 8 deliveries were by cesarean and 1 fetus was aborted. Lumbar epidural anesthesia was employed in 73.33% (5 vaginal deliveries and 6 cesareans) and general anesthesia in 26.66% (1 abortion, 1 vaginal delivery and 2 cesareans). CONCLUSIONS: Continuous lumbar epidural anesthesia is the technique of choice for vaginal as well as cesarean deliveries. The combination of opioids and local anesthetics is considered particularly beneficial for patients, as it allows the motor blockade to be decreased. General anesthesia is only indicated when there is bulbar involvement. Short-acting non depolarizing agents, among them atracurium Besilate, are the muscle relaxants of choice. Succinylcholine is contraindicated. Thanks to current optimization of anesthetic and recovery techniques and administration of non depolarizing muscle relaxants with neuromuscular monitoring, the prognosis for pregnant MG patients has improved considerably.
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Recently, a controversy has arisen as to whether air or saline should be recommended for the correct localization of the epidural space with the loss of resistance technique. I report a case of a previously healthy parturient who developed pneumocephalus and severe headache following the use of the loss of resistance to air (LORA) technique to identify the epidural space. This case report raises one more time the question about the safety of the LORA technique for labor analgesia.