What are the common side effects of stents?

A stent is a small tube placed in an artery or catheter to keep it open when damaged There are many kinds of stents for different surgical procedures and applications, such as coronary artery, esophageal, ureteral and biliary stents Most of them are made of stainless steel mesh and plastic But there are other scaffolds for vascular bridges, which are made of special fabrics Stent may cause some common side effects, such as coagulation, calcification, bleeding and pain There are two types of stents commonly used: bare mesh stents and drug coated stents The latter is a drug-eluting stent used to prevent arterial coincidence These devices are usually effective and can save lives, however, in some cases, patients experience negative outcomes Clinical trials of wire mesh stents implanted in cerebral vessels have found that stents can lead to stroke In the treatment of coronary artery occlusion, stents sometimes lead to chest pain, swelling of arms or legs, bleeding at the groin insertion site and other adverse reactions The stent allows urine to move freely from the kidney to the bladder, but it can sometimes irritate the bladder, causing back and groin pain They move and migrate to the bladder, causing the patient to urinate more frequently and potentially causing blood to seep into the urine Sometimes, these side effects can be alleviated by drugs, and in most cases, they disappear after removing the stent Doctors advise patients to seek medical help immediately if they experience persistent severe pain or fever after using the stent The use of drug coated stents can sometimes cause adverse reactions such as coagulation, and may cause allergic reactions to the stents themselves It can usually be treated with drugs, but scarring the site of the stent is a common side effect Drug eluting stents can also cause gastrointestinal bleeding, flu like symptoms, chest pain, and stroke The study found that these symptoms and effects can also occur on bare metal stents Other side effects of stents include lung disease and even cancer, but they are rare.