Study could change how heart attack patients are treated (Dr. Dion Stub)

A new study led by a Vancouver-based doctor could change the way heart attack patients are treated around the world.

The research says a common practice dating back 50 years may be doing more harm than good.

Oxygen has been a first line treatment for heart attacks, even though there was no proof it actually helped.

“The concerning thing was as far back as 40 or 50 years ago, there were the beginnings of evidence to suggest the oxygen in high levels may be toxic for the heart,” says Dr. Dion Stub, cardiologist at St. Paul’s Hospital.

Peter Meiszner reports, with files from Linda Aylesworth

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