Intended for healthcare professionals

Letters Oxygen in myocardial infarction

Maintain normoxaemia until more evidence is available

BMJ 2010; 341 doi: (Published 13 July 2010) Cite this as: BMJ 2010;341:c3715
  1. B Ronan O’Driscoll, consultant respiratory physician1,
  2. Luke S Howard, consultant chest physician2,
  3. Anthony G Davison, consultant chest physician3
  1. 1Salford Royal University Hospital, Salford M6 8HD
  2. 2Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS
  3. 3Southend University Hospital, Westcliff on Sea SS0 0RY
  1. ronan.o’driscoll{at}

    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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