title: Breathing systems reclassified.
abstract: The purpose of reclassifying breathing systems is to enhance understanding by relating structure to function. A previous classification which appears to fulfill this objective is updated to include recent developments in a newly named group of systems called "displacement afferent reservoir" (DAR) breathing systems. A classification table allows for quick comparison and shows that, of the non-absorber systems, the DAR group has the best characteristics of fresh gas utilization.
authors.affiliation: Department of Anaesthesiology, Tygerberg Hospital, University of Stellenbosch Medical School, South Africa.
authors.forename: D M
authors.initials: DM
authors.lastname: Miller
mesh_terms: D000042:Absorption; D000764:Anesthesia, Closed-Circuit / Q000145:classification / Q000295:instrumentation*; D018685:Anesthetics, Inhalation / Q000008:administration & dosage; D017610:Calcium Compounds; D004867:Equipment Design; D006801:Humans; D010087:Oxides; D012121:Respiration, Artificial; D012212:Rheology; D012972:Sodium Hydroxide / Q000737:chemistry
chemical_list: D018685:Anesthetics, Inhalation; D017610:Calcium Compounds; D010087:Oxides; C004569:soda lime; D012972:Sodium Hydroxide