SynCardia TAH-t Instructions for Use
SynCardia Systems, Inc.
Page 13
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Three 15 by 20 centimeter sheets of membrane are used to create a neo-
pericardium to prevent adhesions. On the right side a sheet is anchored
with non-absorbable suture to the pericardial reflection at the level of
the superior vena cava, pulmonary veins and inferior vena cava. On the
left side, a second sheet is sutured to the pericardial reflection just
anterior to the left pulmonary veins. On the diaphragmatic side, a third
sheet is sutured so as to cover the entire diaphragmatic pericardial
surface. The 3 sheets are then folded upon themselves to keep them out
of the operative field while the SynCardia TAH-t is implanted.
7.4
Preparing the Atria
The outer walls of the entire right and left atrial cuff complex are encircled
with Teflon felt buttresses. These are placed in such a way that they can be
used for strengthening the anastomosis to the inflow connector and also to
tamponade and control all possible bleeding from the AV groove portion of the
connector. These are cut to approximately 10-12 mm in width and are
generally 10 cm in length. It most often takes at least two of these to extend
around the entire atrial cuff. They are placed on the outer edge of the cuff and
sewn in place with a running 3-0 polypropylene (Figure 4). A long needle is
used to accomplish this (MH needle) and, after completing this, the left and
right atrial cuffs are surrounded by Teflon felt buttresses.
Figure 4: Atrial Sutures
