Document Detail


Recirculating delivery improves myocardial cell engraftment.
MedLine Citation:
PMID:  20002293     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
INTRODUCTION: Despite pharmacological advances for heart failure, morbidity and mortality remain unacceptably high. As a result, alternative approaches such as cell therapy have been suggested to hold potential promise. However, a major obstacle is the optimization of cell delivery to the heart. Therefore, we investigated the efficacy of a percutaneous recirculation system for the delivery of cells to the heart.
METHODS: Ovine fibroblasts were delivered to the ovine heart (3 x 10(7) cells) using the V-Focus system, a "closed" recirculatory system that draws blood from the coronary sinus and returns it to the coronary artery via an oxygenator, or intracoronary (IC) infusion, followed by a 2-hour recovery period. Animals were euthanized and cardiac tissue collected to determine presence of cells.
RESULTS: There was a significant difference (P < 0.05) in the number of cells delivered to the heart by the V-Focus compared to direct coronary infusion for left ventricular freewall (V-Focus 1.39 +/- 0.63/mm(2), IC 0.11 +/- 0.06/mm(2)), septum (V-Focus 3.18 +/- 0.88/mm(2), IC 0.38 +/- 0.19/mm(2)), and right ventricle (V-Focus 0.46 +/- 0.23/mm(2), IC 0.05 +/- 0.04/mm(2)).
CONCLUSIONS: These results suggest that potential therapeutic cells are optimally delivered to the large animal heart using the V-Focus cardiac delivery system in an ovine heart.
Authors:
Melissa J Byrne; Amanda Zatta; Cesere Galli; John M Power; David M Kaye
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2009-11-25
Journal Detail:
Title:  Journal of interventional cardiology     Volume:  23     ISSN:  1540-8183     ISO Abbreviation:  J Interv Cardiol     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-05-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8907826     Medline TA:  J Interv Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  14-7     Citation Subset:  IM    
Affiliation:
Heart Failure Research Group, Baker IDI Heart & Diabetes Institute, Melbourne, Victoria, Australia. melissa.byrne@bakeridi.edu.au
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