AIM Transesophageal echocardiography (TEE) is still considered as the reference method for the non-invasive detection of right-to-left shunts. Echocardiographic laboratories are spending most of their time performing TEE studies to exclude a thromboembolic cardiac disease. In a considerable proportion of these patients the question can be simplified to exclude a PFO. Replacing these TEE studies...

Fluid diodes are fluidic devices that enhance fluid flow in a particular direction while inhibiting it in the opposite direction without the use of moving parts. This is accomplished through the use of nozzle shaped geometry on one side of the diode, and cusp shaped geometry on the opposing side. Fluid meets very little resistance as is travels though the nozzle side of the diode. The cusps on ...

The first microsurgical derivative operations were those using lymphnodal-venous shunts. These have been largely abandoned, except in endemic areas of lymphatic filariasis such as India where thousands of these procedures have been performed. Lymphatic channels in lymphnodal-venous anastomoses are often widely dilated due to the high rate of anastomotic closures caused by the thrombogenic effec...

Successful liver transplantation typically results in an immediate decrease in intrahepatic resistance accompanied by an initial increased hepatopedal portal flow. Within a short period of time, the portal hypertension resolves and the variceal shunts involute. However, in situations in which intrahepatic vascular resistance to venous flow remains elevated, significant hepatofugal portal flow m...

Portal vein thrombosis (PVT) is a known complication of liver cirrhosis with reported incidence up to 32% and the rate LT only 1.2%-6.6% due surgical complexity risk. 691 transplants were performed in period 2008-2019. The for PVT was 6.2% (43/691). PV reconstruction (PVR) technique depended on grade, age, presence shunts composed thrombectomy (19), reno-portal transposition (8), jump interposi...

Experience with temporary intravascular shunts (TIVS) for vessel injury comes from the military sector and while the indications might be clear in geographically isolated and under resourced war zones, this may be an uncommon scenario in civilian trauma. Data supporting TIVS use in civilian trauma have been extrapolated from the military literature where it demonstrated improved life and limb s...