The investigators (1) preferred occluding the great cardiac vein
while administrating the ABMMNCs via intracoronary route.
At implantation, the Attain SD Model 4189 left-heart lead is maneuvered transvenously to a cardiac vein
site that provides stimulation to the left ventricle.
It may reveal unusually high ostia, an overriding Thebesian valve, an early bifurcation, or separate ostium of the middle cardiac vein
Physicians will evaluate the performance of the Medtronic Attain SD cardiac vein
lead model 4189, as part of the ongoing MIRACLE ICD trial (Multicenter InSync Randomized Clinical Evaluation in ICD patients).
Once advanced through the coronary sinus, the stylet-driven lead is moved forward through the coronary venous system and is placed in the appropriate branch or tributary of the great cardiac vein
, where it stimulates the heart's left ventricle.