Voltaren Gel should not be used by patients with known hypersensitivity to diclofenac. It also should not be used by patients who developed asthma, urticaria, or allergic reactions after taking aspirin or NSAIDs.
Biliary drainage is performed with a tube or catheter (called a biliary drain, biliary stent or biliary catheter) by a surgeon or, commonly, an interventional radiologist. It can be used to relieve a blockage in the bile duct, either permanently or as a temporary solution before definite treatment such as surgery.
Interventional radiologists commonly perform three types of biliary drainage procedures. External biliary drainage is performed by positioning a drainage catheter in the bile duct above the obstruction. The physician punctures the skin and passes a needle into one of the bile ducts. The needle is exchanged over a guidewire for a catheter, and the catheter is positioned and sutured in place.