Abstract:

In 2010, Kawasaki T et al. presented a modification of the bifurcation technique named «culotte» - «cross-stenting» technique. The purpose of this technique - minimization of metal overlap in the proximal part of the main branch and, thus, reducing the risk of stent thrombosis and restenosis. In this article, we have present a case report of successful application of «cross-stenting» technique. Also we have described technical features of this technique and principles of choice stent for the side branch. 
 

References 

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Abstract:

Aim. Was to estimate the role of transcutaneous interventions under the supervision of radiodiagnostics in the maintenance of all mini-nvasive kinds of operation stages of surgical treatment in patients with pancreatic and duodenal zone tumors

Materials and methods. For the period from January 2007 till march 2010, 21 patients, aged 49-75 (10 men, 11 women) - were under aparoscopic pancreaticoduodenectomy (LPDE)

Results. The use bile ducts drainage systems before LPDE in 95% cases leads to small hemorrhage (less than 1 liter). The presence of cholangiostomy also leads to early diagnostics of biliodigistive anastamosis (BDA) stenosis, and makes bile peritonitis – impossible.

Conclusion. Usage of non-vascular methods of interventional radiology allows to make effective and less traumatic biliar decompression in patients with biliopancreatic and duodenal zone tumors as a stage of LPDE preparations. The presence of decompression cholangiostomy prevents further BDA inconsistency, and makes pacreaticojejunoanastamosis healing faster in case of its' decompression.

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Abstract:

Aim: was to study properties of nanostructured carbon coating stents in coronary arteries with the help of intravascular ultrasonic visualization.

Materials and Methods: experimental implantation of stents in coronary artery was performed on 8 yearling sheep. Estimation of bioinertness properties of stents was made by intravascular ultrasonic method on the 14, 28, 180 day. Bioinertness properties were estimated in comparison with analogical bare-metal stents.

Results: The analysis of results showed that in early stages (up to 28 days) experimental samples of stents cause less formation of trombus than simple balloon-extendable stents. In the period of late outcomes, coronary nanostructured carbon coating stents have lower level of «in-stent stenosis».

Conclusion: stent implantation with nanostructured carbon coating does not prevent the natural reparative processes taking place in the artery wall, does not cause the formation of thrombotic masses under standard doses of antiaggregants. Experimental stents significantly less affected in-stent stenosis, than stents without surface modification, indicating their higher bioinertness. 

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