Liquid Paraffin as a Cause of Oil Aspiration Pneumonia

Lipid pneumonia in a cow

“…Apart from inexpert drenching, many factors such as malfunction of the central nervous system, debility, and dysphagia may contribute to the aspiration of liquids. The blandness of certain oils -e.g., liquid paraffin -may also contribute to the aspiration of liquids through failure to elicit any reflex action (Forbes and Bradley, 1958). The tissue reaction produced by animal oils is~aid to be greater than that produced by oils of vegetable or mineral origin (Jubb and Kennedy, 1963).…”

“…Terms & Conditions of access and use can be found at http://www.tandfonline.com/page/termsand-conditions LIPID PNEUMONIA is caused by the aspiration of oily substances. It may occur in most animals subjected to medication including man (Forbes and Bradley, 1958). Among domesticated animals it is most common in cats and results usually from the administration of liquid paraffin or cod liver oil (Jubb and Kennedy, 1963).…”

A case of chronic paraffin pneumonitis

“…Proof that the oil in question is indeed paraffin is difficult since mineral oils are chemically inert and cannot be saponified. In frozen sections paraffin oil stains an orangy hue with Sudan or Scharlach R, but, in contrast to vegetable and animal fats, paraffin is not stained with osmium tetroxide (Pinkerton, 1927;Forbes and Bradley, 1958). If sufficient oil can be obtained use may be made of the observation that paraffin oil is soluble in cold chloroform but not in cold acetone (Wagner et al, 1955).…”

“…Rewell (1947) published the -first probable case from this country, but since then there have been but few observations in the British Isles (Forbes and Bradley, 1958;Siddons, 1958;Cotton and Lloyd, 1960;Elston, 1966). Forbes and Bradley (1958) emphasized that the aspiration of oil was not considered in the aetiology of any of their four cases during life, and stated that diagnosis was difficult even at necropsy.…”

Air Contamination from High-Speed Dental Drills

“…Chronic respiratory symptoms are often produced. Many such cases have been described following the inhalation of liquid paraffin administered medicinally (Ikeda 1937, Proudfit et al 1950, Symmers 1955, Forbes & Bradley 1958.…”