Patient characteristics should guide clinicians and patients when deciding between coronary bypass surgery and percutaneous coronary intervention, according to a study published in the Annals of Internal Medicine. As many as 41% of people fared better with PCI, while those who had certain risk factors or comorbidities had slightly better outcomes with surgery, according to the study. "It's good to say, 'On average people do better with this drug or this procedure,'" said Dr. Mark Hlatky of Stanford University. "But if we could only target the people who would get the most benefit, we'd probably make better decisions and maybe save money."

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