Articles: general-anesthesia.
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Comparative Study
Electromyography in anaesthesia. A comparison between two methods.
Two instruments measuring evoked compound muscle action potentials (EMG) produced by train of four stimulation of the ulnar nerve were compared. The neuromuscular transmission section of a Datex Anaesthesia and Brain Monitor (ABM), which utilises an integration technique to measure the EMG, and the Medelec MS6 , by which amplitude of the EMG was recorded and measured were attached to the same electrodes placed over adductor pollicis. ⋯ The changes in neuromuscular transmission measured by the two methods correlated well, with no statistically significant difference in results. The ABM provides a simple and accurate automatic measurement of evoked EMG for use in the study of neuromuscular transmission.
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Randomized Controlled Trial Comparative Study Clinical Trial
General anaesthesia for caesarean section in severe pre-eclampsia. Comparison of the renal and hepatic effects of enflurane and halothane.
In a randomized study of patients undergoing Caesarean section, either enflurane (mean 0.24 MAC-h) or halothane (mean 0.23 MAC-h) and 50% nitrous oxide in oxygen were administered to women (n = 12) with severe pre-eclampsia-eclampsia and to 16 healthy pregnant patients with normal renal and hepatic function. No evidence of nephrotoxicity was found in any pre-eclamptic or normal patient. ⋯ Postoperative liver function tests showed no important changes from preoperative values, although reductive metabolites of halothane were not measured. In patients with severe pre-eclampsia there appears no contraindication to enflurane or, probably, halothane as volatile supplements during general anaesthesia.
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Drug Intell Clin Pharm · Jun 1984
Case ReportsAnaphylactoid reaction caused by intravenous doxycycline during general anesthesia and beta-blockade treatment.
A 71-year-old woman with icterus was treated with doxycycline orally for one week. She then was admitted for an exploratory laparotomy under general anesthesia with barbiturate, pancuronium, fentanyl, and nitrous oxide. ⋯ Soon after the completed infusion, she developed a severe anaphylactoid reaction with bronchospasm, hypotension, and generalized urticaria, which was treated successfully with ephedrine, aminophylline, hydrocortisone, furosemide, metaraminol, ketamine, and epinephrine. The possibility of beta-blockade treatment worsening the reaction is discussed and five other reports of anaphylactoid reactions to intravenous doxycycline are mentioned.
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The Authors analyse and discuss some particular problems related to anaesthesia in neurosurgery according to the patient's clinical and neurological status and to the surgical treatment. The evaluation of systemic and neurological physiopathology during pre-, per- and post-operative periods are important for this analysis. Therefore anaesthesia and intensive care methods are attentively discussed. Intracranial pressure, cerebral blood flow, metabolism, intracranial space-occupying lesions and surgical techniques are the main factors interfering with anaesthesia in neurological surgery.