| dissociative anaesthesia | A form of general anaesthesia, but not necessarily complete unconsciousness, characterised by catalepsy, catatonia, and amnesia, especially that produced by phenylcyclohexylamine compounds, including ketamine. (05 Mar 2000) |
|---|---|
| infiltration anaesthesia | Anaesthesia produced by injection of local anaesthetic solution directly into an area that is painful or about to be operated upon. (05 Mar 2000) |
| inhalation anaesthesia | General anaesthesia resulting from breathing of anaesthetic gases or vapors. (05 Mar 2000) |
| insufflation anaesthesia | Maintenance of inhalation anaesthesia by delivery of anaesthetic gases or vapors directly to the airway of a spontaneously breathing patient. (05 Mar 2000) |
| intercostal anaesthesia | Regional anaesthesia produced by injection of local anaesthetic solution about intercostal nerves. (05 Mar 2000) |
| intramedullary anaesthesia | Rarely used method of general anaesthesia by injection of intravenous anaesthetic agent(s) into the medullary canal of long bones. Synonym: intraosseous anaesthesia. (05 Mar 2000) |
| intranasal anaesthesia | Insufflation anaesthesia in which an inhalation anaesthetic is added to inhaled air passing through the nose or nasopharynx; anaesthesia of nasal passages by infiltration and topical application of local anaesthetic solution to nasal mucosa. (05 Mar 2000) |
| intraoral anaesthesia | Insufflation anaesthesia in which an inhalation anaesthetic is added to inhaled air passing through the mouth; regional anaesthesia of the mouth and associated structures when local anaesthetic solutions are used by topical application to oral mucosa, by local infiltration, or as nerve blocks. (05 Mar 2000) |
| intraosseous anaesthesia | Rarely used method of general anaesthesia by injection of intravenous anaesthetic agent(s) into the medullary canal of long bones. Synonym: intraosseous anaesthesia. (05 Mar 2000) |
| intraspinal anaesthesia | Inaccurate synonym for spinal anaesthesia; local anaesthetic solutions are not injected into the spinal cord. (05 Mar 2000) |
| intratracheal anaesthesia | Inhalation anaesthesia technique in which anaesthetic and respiratory gases pass through a tube placed in the trachea via the mouth or nose. Synonym: intratracheal anaesthesia. (05 Mar 2000) |
| intravenous anaesthesia | General anaesthesia produced by injection of central nervous system depressants into the venous circulation. (05 Mar 2000) |
| intravenous regional anaesthesia | Regional anaesthesia by intravenous injection of local anaesthetic solution distal to an occlusive tourniquet in an extremity previously exsanguinated by pressure or gravity. Synonym: Bier's method. (05 Mar 2000) |
| isobaric spinal anaesthesia | Spinal anaesthesia of same density as cerobrospinal fluid so that the level of anaesthesia is not influenced by a change in the position of the patient. (05 Mar 2000) |
| open drop anaesthesia | Inhalation anaesthesia by vaporization of a liquid anaesthetic placed drop by drop on a gauze mask covering the mouth and nose. (05 Mar 2000) |