Angioplasty News and Research

RSS

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 The balloon is then deflated and the catheter is withdrawn.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.

Ultrasound helps provide rapid treatment of DVT

Scientists in the United States have discovered that ultrasound waves help dissolve blood clots in deep vein thrombosis (DVT) faster than clot-busting drugs.

24 Nov 2008

Nontoxic nanoparticle delivers and tracks drugs

A nontoxic nanoparticle developed by Penn State researchers is proving to be an all-around effective delivery system for both therapeutic drugs and the fluorescent dyes that can track their delivery.

18 Nov 2008

Rosuvastatin trial shows dramatic reduction in hidden heart disease

A Harvard-led study shows that the risk of heart attack and stroke among subjects with "silent heart disease" - and normal cholesterol levels - can be dramatically reduced by the use of an already widely prescribed class of drugs.

13 Nov 2008

Angioplasty safer in community hospitals when team has more experience

Heart experts at Johns Hopkins have evidence that life-saving coronary angioplasty at community hospitals is safer when physicians and hospital staff have more experience with the procedure.

12 Nov 2008

Dual treatment for stroke leads to improved recovery rates, reduced mortality

It appears that stroke patients who receive both intravenous thrombolysis - a minimally invasive treatment that dissolves abnormal blood clots - and endovascular interventions - such as drugs and implanting medical devices - are much more likely to recover and have lower chances of dying, according to new research by the Zeenat Qureshi Stroke Research Center at the University of Minnesota Medical School.

12 Nov 2008

Timing is everything for some heart attack patients

There is strong evidence that getting to the hospital quickly during a heart attack is critical, since early treatment saves both lives and heart muscle. And if the responsible coronary artery is completely blocked, it should be opened as soon as possible.

11 Nov 2008

Rivaroxaban shows promise in patients with acute coronary syndrome

Researchers reported on a study of a new oral anti-clotting agent - rivaroxaban - designed to identify doses that would be safe to test in subsequent Phase III efficacy and safety trials. The results of ATLAS ACS-TIMI 46 were presented as a late-breaking clinical trial at the American Heart Association's Scientific Sessions 2008.

11 Nov 2008

Five key proteins form new, early-warning blood test before heart attack strikes

A team of Johns Hopkins biochemists has identified a mixed bag of five key proteins out of thousands secreted into blood draining from the heart's blood vessels that may together or in certain quantities form the basis of a far more accurate early warning test than currently in use of impending heart attack in people with severely reduced blood flow, or ischemia.

10 Nov 2008

Hispanics less likely to have repeat revascularizations 1 year after angioplasty

Hispanic patients were 57 percent less likely than Caucasian patients to undergo coronary artery bypass surgery (CABG) one year after successful angioplasty, a type of percutaneous coronary intervention (PCI) to open blockages in the coronary arteries.

10 Nov 2008

Stents no help for patients with narrow kidney arteries

Using stents to open up kidney arteries is commonly done in patients with atherosclerotic renovascular disease, but the procedure provides no benefit, according to a paper being presented at the American Society of Nephrology's 41st Annual Meeting and Scientific Exposition in Philadelphia, Pennsylvania.

10 Nov 2008

New devices used to reduce arterial occlusions, provide cardiac support

Research results highlighting three new devices used to reduce blockages in peripheral and coronary arteries and to provide cardiac support will be presented at the 20th annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium, sponsored by the Cardiovascular Research Foundation (CRF).

12 Oct 2008

The role played by drug-eluting stents in reducing acute myocardial infarction

The safety debate about drug-eluting stents (DES) is still ongoing. In these times of uncertainty about DES safety, the study has shown that DES markedly improve long-term survival compared to modern bare-metal stents (BMS) implantation in patients with acute ST-segment elevation myocardial infarction (STEMI). In our four year investigation, DES demonstrated a significant reduction of mortality in this sick patient subset.

2 Sep 2008

Factor Xa inhibitor Apixaban and antiplatelet therapy after acute coronary syndrome

Data from a phase II study of an investigational drug designed to block formation of blood clots show potential for added protection against a second heart attack or stroke among patients who are already taking state-of-the-art prevention therapy.

2 Sep 2008

Overcoming poor response to standard oral antiplatelet agents

Existing practice surrounding many cardiovascular medications, including anti-hypertensive and lipid-lowering agents, is based on the evaluation of response to therapy. In cases where ideal therapeutic targets (which have been identified through several previous studies) are not met in the single individual, there is evidence to support the need to intensify standard treatment so as to achieve better control of the cardiovascular risk factor under treatment (e.g. blood pressure or cholesterol levels) as this translates into a better outcome.

2 Sep 2008

Researchers say heart bypass a better option than drug-eluting stents

Major clinical research has found that for many patients with clogged arteries, bypass surgery is a better option than drug-eluting stents.

2 Sep 2008

Drug eluting stents: New elements in the debate

Results announced at the 2006 ESC meeting in Barcelona questioned the long-term safety of drug eluting stents (DES) and sparked intense discussion.

31 Aug 2008

Some hospitals require insured patients to make larger upfront payments for elective procedures, surgeries

The South Florida Sun-Sentinel on Tuesday examined how across the U.S., "some insured patients are being asked by hospitals to pay larger portions of their bills upfront -- and sometimes hospitals will not do the procedures until they get their copayments."

28 Aug 2008

Drug-releasing coronary artery stent use linked with decrease in procedures to unblock coronary arteries

The widespread adoption of the use of drug-releasing coronary artery stents into routine practice is associated with a decrease in the need for repeat procedures to unblock coronary arteries and also do not appear to increase the risk of death, compared to bare-metal stents, according to a study in the June 25 issue of JAMA, the Journal of the American Medical Association

24 Jun 2008

New way to limit gene transfer and expression

Researchers from Northwestern University and Texas A & M University have discovered a new way to limit gene transfer and expression to specific tissues in animals.

23 Jun 2008

Chinese red yeast rice reduces repeat heart attacks

A clinical study on patients who have suffered a heart attack found that a partially purified extract of Chinese red yeast rice, Xuezhikang (XZK), reduced the risk of repeat heart attacks by 45%, revascularization (bypass surgery/angioplasty), cardiovascular mortality and total mortality by one-third and cancer mortality by two-thirds.

9 Jun 2008