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Fluoroscopic image of self-expandable metallic stent in the esophagus. The black solid structure is the endoscope used to place the stent. Self-expandable metallic stents are typically inserted at the time of endoscopy, usually with assistance with fluoroscopy or x-ray images taken to guide placement. Prior to the development of SEMS small ...
A drug-eluting stent (DES) is a small mesh tube that is placed in the arteries to keep them open in the treatment of vascular disease.The stent slowly releases a drug to block cell proliferation (a biological process of cell growth and division), thus preventing the arterial narrowing that can occur after stent implantation.
Duodenal-Jejunal Bypass Liner, or Gastric Bypass Stent [1], Common brand names include EndoBarrier, is an implantable medical device in the form of a thin flexible 60 cm-long tube that creates a physical barrier between ingested food and the duodenum/proximal jejunum.
The shunt is completed by placing a special mesh tube known as a stent or endograft to maintain the tract between the higher-pressure portal vein and the lower-pressure hepatic vein. After the procedure, fluoroscopic images are made to show placement. Pressure in the portal vein and inferior vena cava are often measured. [citation needed]
The drugs are thrombolytics and fibrinolytics used in a process called thrombolysis. Surgeries performed may be minimally-invasive endovascular procedures such as a percutaneous coronary intervention (PCI), which involves coronary angioplasty. The angioplasty uses the insertion of a balloon and/or stents to open up the artery. [1]
A prostatic stent is a stent used to keep open the male urethra and allow the passing of urine in cases of prostatic obstruction and lower urinary tract symptoms (LUTS). Prostatic obstruction [ 1 ] is a common condition with a variety of causes.
Restenosis rates of drug-eluting stents appear to be significantly lower than bare-metal stents, and research is underway to determine if drug-coated balloons also improve restenosis outcomes. Restenosis is the recurrence of stenosis , a narrowing of a blood vessel , leading to restricted blood flow.
Before the LITA is divided in its more distal part, the anticoagulant heparin is administered to the patient via a peripheral line, to prevent clots. [21] Catheterization and establishment of cardiopulmonary bypass. After harvesting, the pericardium—the sac that surrounds the heart—is opened and stay sutures are placed to keep it open.