Mac 3 vs Mac 4 - Which blade should you use?

Which blade do you prefer when you intubate? Mac 3 or Mac 4? Is there any data to guide our choice? Matt and I review a recent study from Intensive Care Medicine Journal that attempted to answer the question of which is better. You can find the full article here. https://link.springer.com/article/10.1007/s00134-022-06832-9?mc_cid=93f14f4c87&mc_eid=65c52bf2df

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