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Implantation of one piece biventricular assist device by left thoracotomy in an ovine model

Title
Implantation of one piece biventricular assist device by left thoracotomy in an ovine model
Authors
Kim W.G.Jo Y.H.Min B.G.Won T.H.
Ewha Authors
원태희
SCOPUS Author ID
원태희scopus
Issue Date
2000
Journal Title
Artificial Organs
ISSN
0160-564XJCR Link
Citation
vol. 24, no. 9, pp. 760 - 763
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
In this report, we describe an operative procedure for our implantable 1 piece biventricular assist device (BiVAD) based on a moving actuator mechanism, using an ovine model. Our implantable BiVAD is a volumetric coupled 1 piece unit including right and left blood sacs and an actuator assembly based on the moving actuator mechanism. The BiVAD was controlled by fixed rate control with 75 bpm for the most part. Both the left and the right full ejection modes with the maximum stroke angle were selected to minimize blood stasis in the blood sacs because of low assist flow condition. Three Corriedale sheep were used for the device implantation by a left thoracotomy incision. Cannulation was successfully performed in all cases. Although exposability of the right atrial appendage varied from animal to animal, the insertion of the cannula was easily performed. The cannulas were peritoneal pocket. All 3 animals survived the experimental procedure. During implantation of the device, in the 1 month survival animal, pump flow was maintained between 2.0 L/min and 2.5 L/min, mean aortic pressure was 90-110 mm Hg, and mean pulmonary artery pressure was 20-30 mm Hg. The left and right atrial pressure were maintained between 0 and 5 mm Hg. In conclusion, this ovine model for implantation of the 1 piece BiVAD can be an effective alternative for testing in vivo biocompatibility of the device although it needs more consideration for anatomical fittability for future human application.
DOI
10.1046/j.1525-1594.2000.06571-5.x
Appears in Collections:
의과대학 > 의학과 > Journal papers
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