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The Debate on Cardiac Stent Safety

By Michael D. Brophy
November 29, 2006

During the late summer and early autumn of 2006, the medical community began to express second thoughts about the safety of drug-coated cardiac stents, which have in recent years been given credit for reducing the frequency of complications arising from the use of a previous generation of stents. The publicity generated by the news media interested me in my professional role representing health care providers, and for personal reasons as well. In June 1999, I underwent coronary angioplasty and stent placement to address a 95% blockage of one coronary artery. I have been closely monitored in semi-annual visits since that time, and I recently discussed with my cardiologist the evolving technology of drug-coated stents. Our discussion led me to research the procedure in general, and the recent evolution of cardiac stents in use within the United States and abroad.

History of the Cardiac Stent

The first coronary stent was inserted by Dr. Jacques Puel in Toulouse, France, in 1986. Dr. Puel's procedure had its origin in the use of angioplasty balloons by interventional cardiologists during the preceding decade. Although coronary arteries could be opened successfully using a balloon, the wall of the coronary artery occasionally weakened after balloon dilatation, and at times collapsed. To address this complication, stents ' metal tubes or 'scaffolds' ' were designed to be inserted following balloon angioplasty, usually threaded through the circulatory system, starting from a small incision in the thigh.

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