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Pancreatic and biliary stents provide pancreatic and bile drainage from the gallbladder, pancreas, and bile ducts to the duodenum in conditions such as ascending cholangitis due to obstructing gallstones. Pancreatic and biliary stents can also be used to treat biliary/pancreatic leaks or to prevent post-ERCP pancreatitis. [12]
Hypaque or other water-soluble dye may be placed through the passage to ensure patency of the stent on fluoroscopy. [15] Enteric and colonic SEMS are inserted in a similar fashion, but in the duodenum and colon respectively. [16] Biliary SEMS are used to palliatively treat tumours of the pancreas or bile duct that obstruct the common bile duct.
A bare-metal stent is a stent made of thin, uncoated (bare) metal wire that has been formed into a mesh-like tube. The first stents licensed for use in cardiac arteries were bare metal – often 316L stainless steel. More recent "second generation" bare-metal stents have been made of cobalt chromium alloy. [1]
Endoscopic stenting is a medical procedure by which a stent, a hollow device designed to prevent constriction or collapse of a tubular organ, is inserted by endoscopy.They are usually inserted when a disease process has led to narrowing or obstruction of the organ in question, such as the esophagus or the colon.
A bioresorbable stent is a tube-like device that is used to open and widen clogged heart arteries and then dissolves or is absorbed by the body. It is made from a material that can release a drug to prevent scar tissue growth. It can also restore normal vessel function and avoid long-term complications of metal stents. [1] [2]
The FDA recently approved a heart stent made specifically for infants and young children, a device that could help kids born with certain congenital heart defects avoid a series of open heart ...
Julio Palmaz (December 13, 1945 in La Plata, Argentina) is a doctor of vascular radiology at University of Texas Health Science Center at San Antonio.He studied at the National University of La Plata in Argentina, earning his medical degree in 1971.
Some uses for this procedure includes: drainage of bile/infected bile to relieve obstructive jaundice, to place a stent to dilate a stricture in the biliary system, stone removal, and rendezvous technique [4] where guidewire from the common bile duct (CBD) meets with duodenoscope (coming from the oesophagus into the stomach and then duodenum) at the major duodenal papilla.