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Perioperative hypoxemia is common with horizontal positioning during general anesthesia and is associated with major adverse outcomes: a retrospective study of consecutive patients

C Michael Dunham*, Barbara M Hileman, Amy E Hutchinson, Elisha A Chance and Gregory S Huang

BMC Anesthesiology 2014, 14:43  doi:10.1186/1471-2253-14-43

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An obviously highly flawed restrospective study...

Anthony Schapera   (2014-06-27 16:17)  Northern Inyo Hospital

.since there is no reference to modality of mechanical ventilation ( eg tidal volume, mean inflation pressures, use of PEEP ) and /or gas mixtures (eg nitrous oxide vs air ) used intraoperatively. These are obvious critical elements in evaluating the occurrence of postoperative hypoxaemia and has been studied by myself and others many years ago. In essence this study is useless and does not merit any consideration whatsoever!

Competing interests

None ...


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