Shorter waits for angioplasty do not lower death rates, study says

The average 'door-to-balloon' time for heart attack patients has dropped by 20%, but that has not translated into better survival rates, cardiologists say.An intense nationwide push to speed hospital treatment for heart attack patients has been a success, cutting by 20% the average time people waited before getting their clogged arteries opened between 2005 and 2009.

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