1. Each one of eight mongrel dogs was anesthetized twice. First time, it was anesthetized with enflurane mixed with 70% N2O. One week later, it was anesthetized only with enflurane.

2. Aim To investigate the relationship between spinal cord NMDA receptors and the analgesic effects of enflurane, isoflurane and sevoflurane.

3. The anesthetist’s management of the administration of the inhaled anesthetic enflurane was imitated by fuzzy-logic control of the blood pressure.

4. Inhalational Anesthetics are gases or volatile liquids that produce general anesthesia when inhaled. The commonly used inhalational agents are halothane, enflurane, isoflurane, and nitrous oxide

5. Thirty patients with no history of renal or hepatic disease and with an anticipated duration of anaesthesia of at least 3 h were studied in an open, prospective, randomised clinical trial. Anaesthesia was induced with fentanyl, thiopentone, and vecuronium for facilitating endotracheal intubation. Anaesthesia was maintained with sevoflurane or enflurane, 60% nitrous oxide in oxygen, and additional doses of fentanyl.