What Is a Stent?

Heart stent (Stent), also known as coronary stent, is a commonly used medical device in cardiac interventional surgery, and has the function of unblocking arterial blood vessels. The main material is stainless steel, nickel-titanium alloy or cobalt chromium alloy. It first appeared in the 1980s, and experienced the development of metal stents, drug-coated stents, and bioabsorbable stents. ^[1-2]

Heart stent

Heart Stent (Stent)

The materials used in the heart stent are

ideal

During the treatment, the doctor first extended a very thin catheter through the blood vessel to the site where the artery was narrowed; then, a swellable rubber balloon was used to expand the narrow site; finally, the arterial stent was supported on the dilated artery to prevent the artery from narrowing. It retracted. After all catheters have been withdrawn, the arterial stent remains in the narrowed area of the artery that has been dilated.

In the stent, restenosis can occur within 6 to 8 months after implantation, which means that re-occlusion can occur in the stent. The incidence of restenosis in the first era of metal stents was about 20% (15% to 40%); the incidence of restenosis in the era of drug stents dropped to about 9%. If the coronary arteries are reviewed at half a year after surgery

Heart stent problems exposed

On October 14, 2012, Hu Dayi, a well-known cardiovascular expert in China, said at the 23rd Great Wall International Cardiology Conference that half of the heart stents were unreliable, and profits were up to 9 times that of drug trafficking. Under stable conditions, stents are not recommended. ^[4]

Heart stent background

China is a big market for cardiac interventional surgery, and it is growing at an alarming rate. The number of cardiac interventions in China in 2000 was 20,000. By 2011, this number had surged to 408,000, a 20-fold increase! Some people in the industry said that China used an average of about 1.6 stents per cardiac interventional surgery. Based on this calculation, the number of interventional stents in China in 2011 exceeded 650,000! ^[4]

Heart Stent Cause Analysis

The madness of the stent is first related to the outbreak of cardiovascular disease. As of 2009, there were at least 230 million cardiovascular patients, 200 million hypertensive patients, 7 million stroke patients, 2 million myocardial infarction patients, 4.2 million heart failure patients, 2 million congenital heart disease patients, and an average of 10 million adults Two people have cardiovascular disease. At the same time, the report also estimates that the number of deaths from cardiovascular disease in China is about 3 million people each year, and an average of one person died of cardiovascular disease every 10 seconds.

Another reason for madness is huge profits. With a heart stent, patients have to pay several times or even ten times more than the factory price. A domestically produced heart stent costs only 3,000 yuan at the factory and can reach 27,000 yuan when it arrives at the hospital; an imported heart stent costs only 6,000 yuan at the CIF and reaches 38,000 yuan at the hospital. 9 times the profit of heart scaffold has surpassed drug trafficking. ^[4]

Cardiac stent solutions

The proper use of interventional technology is understandable, but the proliferation of stents is a very sad phenomenon in the Chinese medical community. The most important way to fight cardiovascular disease is to change the lifestyle, not to frantically make a stent. After all, the root cause of this disease lies in the bad habits of the day after tomorrow.

"If you play mahjong for more than ten or twenty hours a day, it will not only cause myocardial infarction and stroke, but also cause a series of bad consequences. If you sit still for a long time, you will have blood clots on your legs. It can cause sudden death, faster than myocardial infarction. Therefore, it is necessary to change unhealthy habits and behaviors from the cultural tradition. Moreover, the mahjong table is also prone to excitement, and there are some dangerous events that should be avoided.

In fact, some medical experts in the 18th century described the symptoms of coronary heart disease and angina pectoris. At that time, there were no scaffolds, no bridges, and no nitroglycerin. At that time, a British doctor organized patients and felled in a forest with fresh air. Every day After 30 minutes of sawing the tree, three months later, most patients had angina disappeared.

The road is at your feet, moving towards health, starting from the heart. I think being able to walk up and move up will obviously have the greatest effect on chronic diseases such as hypertension and obesity. If we walk up, we will find a fulcrum for leveraging healthy China. This power can achieve comprehensive prevention and treatment effects, and achieve the effect of more than one bird on diabetes, tumors, and chronic respiratory diseases. ^[4]