Pre-oxygenation: the Hudson mask as an alternative technique.
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 (ASA 1-2, n = 107); group 3, Hudson mask and group 4, Magill system (ASA 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.
Ooi
R
R
Magill Department of Anaesthetics, Westminister Hospital, London.
Pattison
J
J
Joshi
P
P
Chung
R
R
Soni
N
N
D000328:Adult; D000768:Anesthesia, General; D000771:Anesthesia, Intravenous; D005260:Female; D006801:Humans; D008297:Male; D008397:Masks; D008875:Middle Aged; D010100:Oxygen / Q000008:administration & dosage* / Q000097:blood; D010342:Patient Acceptance of Health Care; D013997:Time Factors
D010100:Oxygen