Is oxygen therapy for heart attack a waste of time?

The use of supplemental oxygen is totally unnecessary, according to research presented at the European Society of Cardiology conference in Barcelona this week.

“The rationale behind this recommendation is the belief that increased oxygen delivery to the ischaemic myocardium reduces infarct size, and subsequent complications such as heart failure and arrhythmias,” says lead author Dr Robin Hofmann.

But there is a paucity of high-quality scientific data to support its use, and his study — known as DETO2X-AMI — calls into question the current

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