Letters Oxygen in myocardial infarction

Author’s reply

BMJ 2010; 341 doi: https://doi.org/10.1136/bmj.c3717 (Published 13 July 2010) Cite this as: BMJ 2010;341:c3717
  1. Dan Atar, professor and head of cardiology1
  1. 1Department of Cardiology B, Oslo University Hospital Ullevål and Faculty of Medicine, University of Oslo, Oslo 0407, Norway
  1. dan.atar{at}online.no

    I principally recommend following guidelines, even when the studies supporting their recommendations might be weak. In fact, only around 10% of all guideline recommendations in cardiology are based on class A evidence. Let us therefore examine what the three authoritative societies in cardiology recommend …

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