HyperForm balloon-assisted endovascular neck bypass technique to perform balloon or stent-assisted treatment of cerebral aneurysms.

We describe a technique to bypass aneurysm neck using the HyperForm balloon to perform balloon- or stent-assisted endovascular treatment of complex large or giant aneurysms with very wide neck in which other methods would fail to obtain an access distal to the aneurysm.

Stent placement in a splenic vein stenosis after TIPS creation.

A hemodynamically significant splenic vein stenosis was found during placement of a transjugular intrahepatic portosystemic shunt in a patient with gastric variceal bleeding. A second stent was placed across the splenic vein stenosis, which was obstructing normal hepatopetal flow, causing venous hypertension in the splenic and short gastric veins. This produced a successful hemodynamic and angiographic result and, clinically, controlled the patient's bleeding.