Document Detail


A novel cardiac assist device (AVICENA): a numerical study to compute the generated power.
MedLine Citation:
PMID:  25138245     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Heart failure is responsible for 30% of all mortalities worldwide. A cardiac assist device is typically suggested by surgeons to compensate for the failure of the heart. This study calculated the generated power by a specific type of cardiac assist device, namely, the AVICENA, which is implanted into an aorta to improve the intensity of blood pumping for better perfusion and compare it to that generated by an unassisted heart.
METHODS: A two-dimensional axisymmetric model with blood-balloon interaction was established to calculate the generated power of the AVICENA compared to the unassisted heart.
RESULTS: The results revealed that the weak power generation in the unassisted heart is significantly compensated in the case of using the AVICENA as an assisted heart. In other words, the power generated by the assisted heart was almost three times higher than that of the unassisted heart.
CONCLUSIONS: The power generated by cardiac assist devices is an important parameter to be considered in the process of selecting a suitable assist device. The findings of this study may have implications not only for understanding the performance of a new type of cardiac assist device, but also for the treatment of heart failure.
Authors:
P Tehrani; S Rahmani; A Karimi; M Alizadeh; M Navidbakhsh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-8-19
Journal Detail:
Title:  Perfusion     Volume:  -     ISSN:  1477-111X     ISO Abbreviation:  Perfusion     Publication Date:  2014 Aug 
Date Detail:
Created Date:  2014-8-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8700166     Medline TA:  Perfusion     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© The Author(s) 2014.
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