In angioplasty procedures, a balloon is fed through a catheter and used to prop open an artery that has become narrowed or blocked. In cases where stenting is appropriate, a stent mounted on a balloon is inserted and inflation of the balloon expands the stent against the blocked artery wall to hold the vessel open. The balloon is then deflated and the catheter is withdrawn. Stent treatment of arteries holds them open and improves blood flow to the heart. In cases where post-dilatation is needed, a high-pressure balloon is inflated inside a stent to help better place the stent against the vessel wall.
Dartmouth Medical School cardiology researchers have discovered a new mechanism for what drives the growth of muscle tissue in the lining of injured heart vessels that can eventually lead to blockage.
Results of a randomised trial in this week’s issue of THE LANCET suggest that a more aggressive approach involving coronary angioplasty soon after anticlotting medical therapy is safe and could offer a better prognosis than more conservative treatment for patients who have had heart attack.
New German research from Heidelberg University suggests that moderate drinking cuts the rate of further narrowing after surgery to open blocked arteries. The findings are published in the current issue of Heart.
Psychological recovery after a heart attack or angioplasty may be delayed if patients’ spouses feel even more anxious or depressed than their ill partners, researchers say.
The U.S. Food and Drug Administration has approved a stent for use in opening blocked arteries in the neck. The new stent is intended to prevent stroke by treating blockages in the carotid artery, the main blood vessel leading to the brain.
The study of 1,821 patients from Olmsted County, Minn., who had heart attacks between 1982 and 1998 and survived to go home from the hospital, found that nearly half (48 percent) of the deaths within three years of hospital discharge were attributable to not participating in cardiac rehabilitation.
Elderly people who undergo surgery or angioplasty to treat chest pain fare just as well long-term as those treated with medication, researchers report in Circulation: Journal of the American Heart Association.
Early cholesterol-lowering drug therapy after hospitalization for acute coronary syndrome appears to reduce artery-clogging plaque, according to a study reported in Circulation: Journal of the American Heart Association.
With the help of snake venom and sophisticated laboratory testing, scientists believe they've uncovered the reason why a group of new heart medications were doing some patients more harm than good.
A pooled analysis of 11 previously published trials provides evidence that drug-eluting stents (DES)—increasingly used in coronary angioplasty—have benefits over bare-metal stents (BMS) by reducing the need for later revascularisation and reducing the risk of cardiac events
Myogen has announced that the United States Food and Drug Administration has granted orphan drug designation to ambrisentan for the treatment of pulmonary arterial hypertension (PAH).
Early intervention with a novel kind of "smart gene therapy" might effectively prevent the organ damage commonly suffered by heart attack victims, suggests a new animal study by researchers at Brigham and Women's Hospital in Boston and Duke University Medical Center.
Instead of threading catheters from the femoral artery in the groin, cardiologists can safely use the radial artery in the arm to gain access to coronary arteries for angioplasty, stent placement, and other procedures
Ultrasound measurements of the volume of the left atrium taken soon after a heart attack can help physicians predict a patient’s five-year mortality rate, according to a new study in the July 21, 2004 issue of the Journal of the American College of Cardiology.
The National Cholesterol Education Program (NCEP) has updated its guidelines for treatment of blood cholesterol, suggesting that people at risk for heart attack and stroke would benefit from more intensive cholesterol-lowering therapies.
Results of a randomised trial in this week’s issue of THE LANCET suggest that the transfer of adult stem cells derived from bone marrow could improve cardiac functioning after heart attack.
Repeating balloon angioplasty and/or stenting procedures to open narrowed arteries in elderly patients may add more than $700 million a year to Medicare expenses, according to a report in today’s rapid access issue of Circulation: Journal of the American Heart Association.
An investigation of how blood flows through stents after opening clogged arteries has led a team of researchers at the Medical College of Wisconsin Cardiovascular Center in Milwaukee to suggest that stents designed with thinner and fewer linkages may be the basis of a new generation of stents.
It's a no-brainer that the brain needs a constant supply of blood to keep it going. But some medical conditions can block or reduce that life-giving flow. Whether it's a stroke, a clogged artery or a brain tumor, any situation where blood can't get to the whole brain can lead to death or permanent disability.
Branch points in the arteries are a common area of atherosclerotic disease, resulting in the occlusion of both branches. These branch points can generally be defined as a main branch and a side branch, and, in treating the disease, the question of what is the optimal course of action, opening the main branch, the side branch, or both, remains uncertain.