Putting it into the body, it will be accompanied by a lifetime of heart stent with a new avatar.
In the case of sudden myocardial infarction, the doctor will implant a metal drug stent to effectively open the narrow part of the blood vessel, thus saving lives, but the stent will remain in the body for a long time. Recently, the Cardiac Intervention Center of Zhongda Hospital and the Cardiology Department of Drum Tower Hospital used a new fully degradable stent to treat myocardial infarction. Miraculously, unlike traditional metal stents, this new stent is completely degraded and completely degraded into carbon dioxide and water within two years.
Case degradable stent is not afraid of MRI
Uncle Li, who is in his 70s, is the first beneficiary of a degradable stent. Three days before his hospitalization, Uncle Li felt inexplicably feeling chest tightness, and sometimes his chest was still dull. He thought that he was old. Because Uncle Li had chest tightness and chest pain 4 years ago, but he could relieve it with a little rest, and he didn't care. However, this time, the degree of pain increased, each pain lasted for more than 30 minutes, and there was radiation pain in the left shoulder, which caused the attention of Uncle Li and his family.
After a coronary angiography examination at Zhongda Hospital, it was found that a coronary artery in the heart of Grandpa Li was narrow. Since Uncle Lee also suffers from cancer and other underlying diseases, MRI and other tests will play a significant role in future treatments. Implantation of metal stents, MRI and other tests may not be performed. Based on the characteristics of the uncle Li and the results of the examination and treatment needs, Professor Ma Genshan, director of the Department of Cardiology, Zhongda Hospital, and Chen Lijuan, deputy chief physician of the surgical team, carefully discussed and evaluated, and decided to implant a degradable stent for Li. After the operation, Grandpa Li clearly felt the symptoms of chest pain disappeared.
It is understood that after the first case of the use of degradable stent implantation on November 29, Zhongda Hospital has received treatment for this new technology. The Department of Cardiology of Drum Tower Hospital completed the implantation of the first degradable stent in the province in August. At present, 4 cases have been completed and the follow-up results are good.
In the magical two years, it will be "flying away"
Director Ma Genshan introduced that the traditional metal stents are not degradable due to the material, even if the task is completed, it must be with the heart for a lifetime. If the blood vessels are always supported by the stent, the blood vessels become stiff and lose their elasticity, while the new stents can both clear the "congested" blood vessels and restore normal contractility and more natural function and movement of the blood vessels. The advantage of the new stent is that it can be fully degraded.
This new type of stent is mainly made of polylactic acid, a naturally decomposable material, which is commonly used to dissolve medical implants such as sutures. The stent begins to degrade in the patient's body for 6 to 8 months and completely degrades into carbon dioxide and water within two years.
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