Controversy
The value of angioplasty in rescuing someone having a heart attack (by immediately alleviating an obstruction) is clearly defined in multiple studies, but studies have failed to find reduction in hard endpoints for angioplasty vs. medical therapy in stable angina patients. The artery-opening procedure alleviates chest pain far more quickly than medical therapy, but has not been shown to prolong life. The "vast majority of heart attacks do not originate with obstructions that narrow arteries".
Read more about this topic: Percutaneous Coronary Intervention
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