Adverse reactions after bile duct stenting

The biliary system is very important to human health. It is responsible for the secretion, storage, concentration and transportation of bile, which is very important for the normal functioning of the human digestive system. When the bile duct shows some symptoms, bile duct obstruction, stones, cysts, etc. often occur. If the disease has reached the late stage, biliary stents can be used to achieve good treatment effects, which is currently one of the best methods for treating bile duct obstruction.

Adverse reactions after bile duct stenting

There are no side effects. The outflow of bile relieves jaundice and eliminates life-threatening sources of disease. If there is any side effect, it is only that it affects the digestive function in the short term, but the impact is very small. Because you cannot eat while in the hospital for ERCP, and you have to rely on intravenous drips for 1 or 2 days after the operation, so it can be said that there are no side effects.

It has the following advantages: (1) The titanium-nickel memory alloy self-expanding biliary and anastomotic stent has excellent biocompatibility and corrosion resistance, as well as unique memory properties and superelasticity. At 0-10℃ (ice water), the internal stent is in a softened state and changes its shape within a certain range, and can be placed in a dispenser no larger than 10F. When the internal stent is pushed out at above 33℃, it can immediately return to its original shape, generating a continuous and gentle radial expansion force that acts on the inner wall of the bile duct, restoring the patency of the narrowed area. Its radial support force is greater than 6 N. (2) The stent has excellent superelasticity at body temperature and can fluctuate with the normal peristalsis of the bile duct, keeping the bile duct open and comfortable. (3) The two ends of the internal stent are small arcs, which will not damage the bile duct wall. The operation is simple and the curative effect is definite. (4) It can prevent stent blockage caused by bacterial infection and bile sludge deposition.

The most widely used biliary stent at present is a woven mesh stent made of titanium and nickel shape memory alloy (as shown in Figure 2), which has a straight cylindrical shape and a flared end at one or both ends. Biliary stenting for the treatment of malignant biliary obstruction is a minimally invasive and repeatable treatment that can effectively relieve malignant biliary obstruction, and its effect is comparable to that of surgical shunt. Titanium-nickel shape memory alloy biliary stents are generally self-expanding. During placement, the expansion of the stent is observed and, if necessary, balloon expansion is used. It is suitable for extrahepatic common bile duct obstruction or stenosis caused by various malignant lesions.