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Transcript
Coronary Angioplasty (PTCA): Coronary angioplasty is a technique used to open up narrowed or blocked coronary arteries. It is carried out in a manner similar to cardiac catheterization. Plastic tubes are inserted through a large artery in your leg and advanced to the opening of the coronary arteries. Small balloons are then placed through these small plastic tubes (catheters) and slid down the coronary arteries to the level of narrowing. These balloons are inflated at the site of coronary narrowing, resulting in compression or flattening outwards of the cholesterol plaque and blood clotting substances that make up the blockage. Angioplasty has a high success rate of around 95%. Unfortunately, however, the narrowing may recur 5-10% of the time. It is possible to do second and third coronary angioplasties if necessary. Coronary angioplasty carries the same risks as cardiac catheterization. In addition, there is a slightly higher risk of myocardial infarction (heart attack) as the angioplasty may sometimes cause blockage of coronary arteries that are being opened. This risk is still low. In some cases a drug eluting stent (DES) is used to further reduce the risk of recurrent narrowing of the coronary artery (re-stenosis). This improves the long term success of the angioplasty and stenting procedure. LAD Stenosis Pre-angioplasty LAD Stenosis Post-angioplasty