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Percutaneous Coronary Intervention (PCI) (cont.)

What are the long-term results of percutaneous coronary intervention?

As the percutaneous coronary intervention technique has advanced from balloon, to balloon plus stent, to balloon plus drug-eluting stent, the long-term results have improved so recurrent narrowing or blockage occurs in less than 10% of patients. If there is no evidence of recurrence of narrowing or blockage (for example, a negative stress test) after about12 months, the majority of stented coronary arteries remain open in the stented area for many years. Unfortunately, other areas of the artery may require an additional stent in the future. Also, patients that fail to take their prescribed anti-platelet medication and continue a lifestyle that promotes coronary artery cholesterol accumulation and arterial narrowing are more likely to have either stent failure or have additional arterial areas develop narrowing or blockage.

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