[The architectonics of the left heart ventricle and the characteristics of the blood flow in a postinfarct aneurysm].

The paper analyzes left ventricular structure-fraction relationships in the development of postinfarct aneurysm. The altered internal architectonics induces to systemic hemodynamic changes, drastically elevated intraventricular pressure. This is caused by to the dysfunction of the papillary-trabecular complex in the left ventricular cavity, which in turn.

[Hydrodynamic and technological bases of a new design of the automyoneoventricle in assisted blood circulation].

The paper presents evidence for and results of development of a new hydrodynamic optimized design of the automyoneoventricle (AMNV) for extracorporeal circulation in critical myocardial lesions. The chosen geometry of externally spirally braided AMNV forms a curled flow that excludes the presence of eddy and stagnant zones which present a risk for thrombogenesis. Moreover, the paper details the original process for manufacturing the prototypes of the AMNV having spiral latex ribs, which has been modified to give its thromboresistant and antibiotic properties.

[Comparative hydrodynamic evaluation of variants of the cavopulmonary anastomosis].

An analysis of the range of postoperative complications following cavapulmonary anastomosis reveals a number of medical engineering problems in surgery techniques. The severity of the surgery due to the nonphysiological rearrangement of blood circulation makes it necessary to search for the most optimal types of anastomosis in terms of the hemo- and hydrodynamics of circulation. To optimize the performance of cavapulmonary anastomosis, namely to define the mutual localization and orientation of the implanted anastomoses against the axes of inflow and outflow, hemo- and hydrodynamic studies were made by Doppler laser anemometry.