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Pre‐oxygenation: the Hudson mask as an alternative technique
Author(s) -
Ooi R.,
Pattison J.,
Joshi P.,
Chung R.,
Soni N.
Publication year - 1992
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1992.tb03203.x
Subject(s) - medicine , oxygenation , pulse oximetry , anesthesia
Summary The use of a simple oxygen facemask (Hudson) with high oxygen inflow (48 l.min −1 ) was investigated as a technique for pre‐oxygenation, comparing it with the Magill system (oxygen flow: 100 ml.kg −1 .min −1 ). One hundred and thirty‐eight patients scheduled for elective gynaecological and orthopaedic surgery were studied: group 1. Hudson mask and group 2, Magill system (A sa 1–2, n = 107); group 3, Hudson mask and group 4, Magill system (A sa 3, n = 30). Pre‐oxygenation was assessed by measuring the times to 97%, 95% and 93% arterial desaturation (finger pulse oximetry) following 3 min of pre‐oxygenation. The times taken to achieve these end‐points in all the study groups suggest that the Hudson mask offers an alternative technique for pre‐oxygenation.