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posted by martyb on Friday January 05 2018, @02:48AM   Printer-friendly
from the ask-your-doctor-if-this-medicine-is-right-for-you dept.

Submitted via IRC for Fnord666

The recent news that stents inserted in patients with heart disease to keep arteries open work no better than a placebo ought to be shocking. Each year, hundreds of thousands of American patients receive stents for the relief of chest pain, and the cost of the procedure ranges from $11,000 to $41,000 in US hospitals.

But in fact, American doctors routinely prescribe medical treatments that are not based on sound science.

The stent controversy serves as a reminder that the United States struggles when it comes to winnowing evidence-based treatments from the ineffective chaff. As surgeon and health care researcher Atul Gawande observes, "Millions of people are receiving drugs that aren't helping them, operations that aren't going to make them better, and scans and tests that do nothing beneficial for them, and often cause harm."

Of course, many Americans receive too little medicine, not too much. But the delivery of useless or low-value services should concern anyone who cares about improving the quality, safety and cost-effectiveness of medical care. Estimates vary about what fraction of the treatments provided to patients is supported by adequate evidence, but some reviews place the figure at under half.

Naturally that carries a heavy cost: One study found that overtreatment — one type of wasteful spending — added between $158 billion and $226 billion to US health care spending in 2011.

The stunning news about stents came in a landmark study published in November, in The Lancet. It found that patients who got stents to treat nonemergency chest pain improved no more in their treadmill stress tests (which measure how long exercise can be tolerated)than did patients who received a "sham" procedure that mimicked the real operation but actually involved no insertion of a stent.

There were also no clinically important differences between the two groups in other outcomes, such as chest pain. (Before being randomized to receive the operation or the sham, all patients received six weeks of optimal medical therapy for angina, like beta blockers). Cardiologists are still debating the study's implications, and more research needs to be done, but it appears that patients are benefitting from the placebo effect rather than from the procedure itself.

Source: https://www.vox.com/the-big-idea/2017/12/28/16823266/medical-treatments-evidence-based-expensive-cost-stents


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  • (Score: 2) by frojack on Friday January 05 2018, @07:13PM

    by frojack (1554) on Friday January 05 2018, @07:13PM (#618445) Journal

    The improvement is just about instant once they will let you get up and move around again

    That is also the experience my friend had with his stents. Instant relief from exercise induced angina.

    And there is no drug that does that. (And if there was such a pain reliefe medication it would be dangerous, because relieving the pain does not fix the underlying problem of heart muscle death.)

    Stents have radically improved over the years, and still need improvement. They sometimes clog, dislodge, and have to be replaced. But they are far less traumatic than bypass surgery, (which I have had, and which was far less traumatic than I was expecting).

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