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Atar’s advice to give oxygen to non-hypoxaemic patients with myocardial infarction is worrying.1 There is no evidence that normobaric hyperoxaemia is beneficial in myocardial infarction, but a non-significant increase in death and a significant increase in aspartate aminotransferase has been reported.2 Oxygen was given routinely to normoxaemic patients with strokes until it was shown to increase mortality significantly in patients with mild and …
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O’Driscoll et al. (2010) studied this question.
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