Biomaterial Database

Effect on nitrous oxide on the anaesthetic requirement of enflurane. 1974

G Torri, and G Damia, and M L Fabiani

The effect of nitrous oxide on the minimum alveolar concentration of enflurane required to prevent movement in response to skin incision in 50% of subjects (MAC) has been investigated in two groups of 16 patients. The end-tidal enflurane concentration was held constant for 25-36 min in order to equilibrate the brain with the alveolar anasthetic partial pressure. When nitrous oxide (30%) was present in the inspired mixture the MAC of enflurane was 1.17%; the value decreased to 0.57% when 70% nitrous oxide was used.

UI	MeSH Term	Description	Entries
D008738	Methyl Ethers	A group of compounds that contain the general formula R-OCH3.	Ethers, Methyl
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009609	Nitrous Oxide	Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.	Laughing Gas,Nitrogen Protoxide,Gas, Laughing,Oxide, Nitrous
D011650	Pulmonary Alveoli	Small polyhedral outpouchings along the walls of the alveolar sacs, alveolar ducts and terminal bronchioles through the walls of which gas exchange between alveolar air and pulmonary capillary blood takes place.	Alveoli, Pulmonary,Alveolus, Pulmonary,Pulmonary Alveolus
D012119	Respiration	The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (	Breathing
D001831	Body Temperature	The measure of the level of heat of a human or animal.	Organ Temperature,Body Temperatures,Organ Temperatures,Temperature, Body,Temperature, Organ,Temperatures, Body,Temperatures, Organ
D003243	Consciousness	Sense of awareness of self and of the environment.	Consciousnesses
D004336	Drug Antagonism	Phenomena and pharmaceutics of compounds that inhibit the function of agonists (DRUG AGONISM) and inverse agonists (DRUG INVERSE AGONISM) for a specific receptor. On their own, antagonists produce no effect by themselves to a receptor, and are said to have neither intrinsic activity nor efficacy.	Antagonism, Drug,Antagonisms, Drug,Drug Antagonisms
D004357	Drug Synergism	The action of a drug in promoting or enhancing the effectiveness of another drug.	Drug Potentiation,Drug Augmentation,Augmentation, Drug,Augmentations, Drug,Drug Augmentations,Drug Potentiations,Drug Synergisms,Potentiation, Drug,Potentiations, Drug,Synergism, Drug,Synergisms, Drug
D004737	Enflurane	An extremely stable inhalation anesthetic that allows rapid adjustments of anesthesia depth with little change in pulse or respiratory rate.	Alyrane,Enfran,Enlirane,Ethrane,Etran