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Investigation of a Hydrodynamic Performance of a Ventricular Assist Device After Its Long-Term Use in Clinical Application.
- Source :
- Life System Modeling & Simulation; 2007, p429-435, 7p
- Publication Year :
- 2007
-
Abstract
- A long-term durability of a ventricular assist device (VAD) is required due to a shortage of donor hearts for cardiac transplantation, but there is no analyzed pump data after long-term use. This study aimed to perform a comparative study between new VAD and VADs after long-term use. The hydrodynamic performance of the used Toyobo VADs (mean period of 5 months with the maximum of 12 months) was evaluated in a mock circulatory system, where a new VAD was used as a control. Although a remarkable difference was not observed in terms of mean flow rate, flow and pressure waveforms varied significantly. Then, the pressure-volume relationship of each pump was measured. It was found that the capacity of long-term VADs was reduced. Although a further study is required, these results suggested that a long-term use of VAD may cause a change in mechanical properties of polymer materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISBNs :
- 9783540747703
- Database :
- Complementary Index
- Journal :
- Life System Modeling & Simulation
- Publication Type :
- Book
- Accession number :
- 33169840
- Full Text :
- https://doi.org/10.1007/978-3-540-74771-0_49