Archive for the ‘Cardiovascular Diseases’ Category

Improve the Narrowed Artery

Saturday, January 30th, 2010

Which opens narrowed arteries, is a procedure performed by interventional cardiologists using a long, thin tube called a catheter carrying a balloon (or balloon) at the end, they inflate in place obstruction of the artery to compress the plaque against the artery wall. Angioplasty is also called percutaneous transluminal coronary angioplasty (PTCA). The procedure involves threading a thin wire (guide catheter) into an artery in the leg and is guided to the narrowed area of the coronary artery. The catheter with the balloon passed over the guide catheter and is located at the site of the blockage, where the balloon is inflated. After treatment, the guide catheter is withdrawn and the catheter with a balloon. The hospital stay and recovery time for this procedure are less than a bypass. But about 35% of patients run the risk of blockages in the treated area (which is called restenosis). Restenosis usually occurs within six months following the completion of the procedure.

Balloon angioplasty is complemented by the placement of a stent. A stent is a device made of metal mesh that is implanted in the area of the artery narrowed by plaque. The stent is mounted on a catheter with a balloon at the tip, is inserted through the artery and is located at the site of obstruction. Then the balloon is inflated, which causes the stent. Then removed the catheter and deflated balloon, leaving the stent in place. Restenosis rates with this procedure is typically between 15 to 20 percent.

Balloon angioplasty is complemented by placing a stent. Restenosis is a problem with the stenting procedure, doctors have been trying to find ways to prop open arteries in which stents were placed. Some newer stents are coated with medicines that reduce the likelihood that the artery from closing again. These are called coated stents or “drug-eluting stents”

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The Highest Troponin T is Associated With Heart Failure

Thursday, January 28th, 2010

In patients with stable coronary artery disease, measuring levels of troponin T with methods of high sensitivity analysis may give clues about the chances of developing heart failure or death from cardiovascular causes. The study, published today in The New England Journal of Medicine, suggests that levels of this protein does not affect the chances of these patients developing acute myocardial infarction. After adjusting for independent prognostic indicators with appropriate methods, concentrations of cardiac Troponin T are related Cadiovascular incidence of death and heart failure, but not with acute myocardial infarction in patients with coronary artery disease, according to data from the Peace , whose first

In most patients with stable coronary artery disease, troponin T levels are below the detection limit with conventional analysis. So Omland group has used a highly sensitive study to determine the concentration of troponin T in plasma samples in 3679 patients with stable coronary artery disease and preserved ventricular function. The results of the analysis used show a relationship between the incidence of cardiovascular disease during follow-up period of 5.2 years.

More sensitivity

With the sensitive method used, troponin T concentrations were above the detection limit of 0,001 nanograms per liter in 3593 patients, 97.7 percent, and below the 99th percentile of healthy subjects in 407 patients, 11.1 percent. After adjusting for prognostic indicators, there was an increase in the cumulative incidence of cardiovascular mortality and heart failure in this group.

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