title: Soda-lime dust contamination of breathing circuits.
abstract: A case report of soda-lime dust contamination of the breathing circuit of an anesthesia machine causing bronchospasm in a patient is presented. Various factors in absorber design and increased dusting of soda lime due to high-flow techniques and lack of wetting are described. A modification of the Fraser-Sweatman absorber leading the fresh gas into an area free of dust accumulation has resulted in near-complete elimination of the problem.
mesh_terms: D000328:Adult; D000769:Anesthesia, Inhalation / Q000009:adverse effects* / Q000295:instrumentation; D001986:Bronchial Spasm / Q000139:chemically induced; D002126:Calcium Hydroxide / Q000009:adverse effects*; D004391:Dust; D004737:Enflurane; D005260:Female; D006801:Humans; D006878:Hydroxides / Q000009:adverse effects*; D008738:Methyl Ethers; D009609:Nitrous Oxide; D011188:Potassium / Q000009:adverse effects; D012972:Sodium Hydroxide / Q000009:adverse effects*
chemical_list: D004391:Dust; D006878:Hydroxides; D008738:Methyl Ethers; D012972:Sodium Hydroxide; D004737:Enflurane; D009609:Nitrous Oxide; D002126:Calcium Hydroxide; D011188:Potassium