PMID: 18203068Jan 19, 2008Paper

Computer and physical modeling of blood circulation pump support for a new field of application in palliative surgery

The International Journal of Artificial Organs
Z MałotaP Kostka

Abstract

One of the most popular palliative procedures performed to increase pulmonary blood flow in children with congenital heart defects is a shunt operation (Blalock-Taussig graft or Glenn procedure), which creates the new blood channel to the pulmonary artery. The main problem with this kind of surgery is poor shunt effectiveness and the lack of possibility to regulate the flow. The aim of this work is to use advanced computer simulation methods to study the effectiveness of a new idea to introduce a small axial blood pump into a Blalock-Taussig (B-T) or Glenn shunt in order to control the blood flow and prevent any increase in the graft stenosis. Physical and computer 3-D simulation based on a finite element mesh (FEM) model was applied. Studies for optimization of the shunt and hybrid shunt with pump were performed for different stages of the disease. The graft with the axial pump creates good conditions for the vascular system and pulmonary artery blood flow as well as regulating blood pressure under variable conditions caused by palliative procedures. Its use permits the afterload of the left heart ventricle to be decreased. A palliative procedure is only a temporary solution. When a child grows, while the graft size is fixed, ...Continue Reading

References

Mar 1, 1996·The Journal of Thoracic and Cardiovascular Surgery·E G Cape
Mar 10, 2000·Journal of Biomechanics·F MigliavaccaM R de Leval
Jun 27, 2001·Journal of Biomechanics·G PennatiG Dubini
Jan 8, 2005·The International Journal of Artificial Organs·Z MalotaJ Waniewski

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Citations

Mar 14, 2019·Computational and Mathematical Methods in Medicine·Neichuan ZhangKai Zhang

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