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TIVA is used to induce general anesthesia while avoiding the disadvantages of volatile anesthesia (and traditional inhalation agents). [9] Intravenous anesthetic agents are titrated at safe doses to maintain stage III surgical anesthesia (unconsciousness, amnesia, immobility, and absence of response to noxious stimulation). [10]
Propofol can be used for total intravenous anaesthetia (TIVA), therefore supplementation by inhalation agents is not required. [45] General anesthesia is usually considered safe; however, there are reported cases of patients with distortion of taste and/or smell due to local anesthetics, stroke, nerve damage, or as a side effect of general ...
Minimum alveolar concentration or MAC is the concentration, often expressed as a percentage by volume, of a vapour in the alveoli of the lungs that is needed to prevent movement (motor response) in 50% of subjects in response to surgical (pain) stimulus.
A comparison between inhalation anesthetics and intravenous anesthetics to determine which were more likely to cause postoperative cognitive dysfunction when used in the elderly for non-cardiac surgery found that fewer people experienced POCD with total intravenous anesthesia (TIVA) compared to inhalational anesthesia, however, these ...
General anaesthetics can be administered either as gases or vapours (inhalational anaesthetics), or as injections (intravenous or even intramuscular).All of these agents share the property of being quite hydrophobic (i.e., as liquids, they are not freely miscible—or mixable—in water, and as gases they dissolve in oils better than in water).
An inhalational anesthetic is a chemical compound possessing general anesthetic properties that is delivered via inhalation. They are administered through a face mask, laryngeal mask airway or tracheal tube connected to an anesthetic vaporiser and an anesthetic delivery system .
Such substances are also called inhalational, e.g. inhalational anesthetics. Intra-arterial (into an artery), e.g. vasodilator drugs in the treatment of vasospasm and thrombolytic drugs for treatment of embolism. Intra-articular, into a joint space. It is generally performed by joint injection. It is mainly used for symptomatic relief in ...
To determine the depth of anesthesia, the anesthetist relies on a series of physical signs of the patient. In 1847, John Snow (1813–1858) [1] and Francis Plomley [2] attempted to describe various stages of general anesthesia, but Guedel in 1937 described a detailed system which was generally accepted. [3] [4] [5]