Stents are small, expandable tubes used to unblock narrowed or weak arteries in the heart. These stents which are used to clear the blocks in the heart valves are a foreign object for the body. If you are living with a stent in your heart then with no further arguments there are risk factors which you have handled with extream care.
Estimated around 1–2 percent of people who have stents in their arteries, are prone to have blood clots in around the area stent is placed. Blood clots can cause strokes, heart attack, other serious problems or even death in rare cases. For few months after the stent placement risks are higher for blood clotting. The patient should be conscious about this risk factor. And must take extra care during this period.
Mainly there are two types of stents used for this purpose. Metals stents and drug stunt (stunts which have machines coated on it). The risk factors of using both of these stents are described the respective following paragraphs. Before that check out the video on how actually are the stents placed inside the heart.
Animation of how are stents placed
Metal stent and how it gets blocked
For those who have used metal stent in their heart, after few years of surgery there are chances for the stent to get coated with the tissues of endothelium. The endothelium is a type of tissue or cavity that lines the interior surface of blood vessels.
After surgery, if the patient fails to have the medicines for blood clotting, and don’t follow proper food control or diet. Then there are high chances of plaque formation around the area of the stent. This will result in another block in the area where the stent is fixed. It’s a serious condition when the stent gets blocked after angioplasty surgery. To avoid such consequences the patient should follow the medicines and life routine as per the instructions of the cardio surgeon.
Drug stent and how it gets blocked
In drug stent, there is special kind of medicine coating over it. These medicines are which prevents fissiparous (multiplying the cells and tissues) Or in other words will prevent tissues from growing from endothelium over to the stent. Which prevents the stent from getting overlayered with the surrounding tissues and also it will not cause plague formation.
But if the patient won’t regularly have the medicines for preventing blood clotting, this will result in blood platelets to stick over the stunts and blood may clot over them. Which may lead to forming blocks in the area where the stent is fixed. This shows blood clotting is a serious matter of concern of living with a stent in your heart.
Risks of living with a stent in your heart
The above cases for both metal stent and drug stents clearly show that if proper medicine and food diets are not followed after the stent placement, it will result in the formation of blocks over stents. This condition is called acute stent thrombosis. Stent thrombosis is uncommon after effect of stent placement, but have serious complication if it occurs.
It is estimated that less than 10 percent of cardiac deaths after stent placement are caused from stent thrombosis. Not to mention that statistics shows, it’s very serious condition which can even cause death.
Today biodegradable stents are available, which itself gets degraded inside the blood vessel. But using this stents are having lots of limitations too.