BRS(bioresorbable stents) were performed in some hospitals 5 years ago, but as a result of the study, they had safety issues and thrombosis rates 2 to 3 times higher than metal stents, and the risk of myocardial infarction and restenosis rates were high, so the use was stopped for a while. . Research results have been published that the biggest reason for this is the thickness of the strut (bracing) of the stent.
The absorbable stent this time is an upgraded stent compared to the stent that has been raised. This stent has been reduced by 36% compared to the strut thickness (157㎛) of other commercially available stents. Mechanical strength is maintained even with a thin strut thickness of 100㎛. After 3 years after the absorption-type stent procedure, there is no stent remaining in the body, so reoperation is possible in the same area, and the period of taking the drug is also reduced to 3 years.
Ulsan Hospital Medical Director Shin Eun-seok (cardiologist) said, “Unlike a mesh-shaped metal stent that remains permanently in blood vessels, it improves blood flow by expanding clogged cardiovascular blood vessels and then completely absorbed into the body in a harmless state.” Absorbable cardiac stents allow smooth reoperation even if the disease recurs in the blood vessel where the stent was treated, and by taking thrombolytic drugs for only one year, drug dependence and patient burden can be reduced.”