Thursday, November 12, 2009

Kidney angioplasty is harmful

If you have stopped taking hundreds of thousands of Americans with kidney arteries, you can try to check the drug before noise angioplasty to open. The process is not economically efficient, and surprisingly high risk, a study has found.
The National Kidney Foundation estimates more than 250,000 Americans have the narrowing of the arteries that supply blood to the kidneys. It is usually the accumulation of fatty plaque, especially in people aged 50 years and may cause or lead to high blood pressure and sometimes kidney failure. Each year, one in six patients died from the disease.
Submitted about 16 percent of patients newly diagnosed with obstacles in the kidney, blood vessels, pottery, or sometimes a more invasive bypass surgery. But quickly the blood vessels can be cleaned and given a dangerous error, according to a study, and some experts.

Doctors in several British hospitals and universities in comparison with patients with severe renal artery obstruction, in which drugs with a group received the same drug and underwent angioplasty for the treatment admit catheter threaded through the artery blockage. The angioplasty group fared no better, and some of these patients suffered serious complications, including death and mutilation.

He said doctors believe that some treatments have obvious benefits, but recently a series of studies, as conventional wisdom in his head. This means that health care is wasted precious U.S. dollars, and patients undergoing unnecessary procedures and risks.

The study of the Thursday New England Journal of Medicine published, all patients treated with drugs to lower cholesterol, blood clots, control blood pressure and prevention.

Nearly 400 drugs only. An additional 335 patients undergoing angioplasty also more frequent clogging of the arteries of the heart.
Almost all of them inserted a stent, a small wire mesh scaffold preserve renal artery open.

After averaging almost three years, the researchers found both groups showed a similar number of deaths, the operation had had a heart attack, stroke, heart failure and reduction of kidney transplant or dialysis early. But 20 percent of patients had complications of angioplasty in the first month, including two deaths, three amputation of the feet or limbs, five cases of sudden kidney failure and four hospital stays for internal bleeding.

Overall, patients in both groups had similar rates of heart and kidney problems and death throughout the study.

This report is the first indication that drugs can produce equivalent results of angioplasty, said Dr. Leslie Lively, a spokesman for the Kidney Foundation. He said a U.S. study is the same issue.

The President of the Foundation, Dr. Bryan Becker, said the patient has not received angioplasty may have better performance because blockages in small blood vessels in addition to the large blood vessels supplying the block kidney had been removed.

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