Doctors Turning to Cardiac Catheterization Too Quickly

If you walk into an emergency room complaining of chest pains, the odds are high that you will end up having cardiac catheterization, where a thin wire is snaked into your heart to determine whether a blood vessel is totally or partially blocked.

But if you do have the invasive procedure, the odds are even higher — nearly two to one — that it will show no significant blockage, a new study finds.

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