While doing a pci of the left main coronary art.Stent number 1) 2.25 x 12 xience alpine ref # 1125225-12 lot # 7030641 was attempted to be placed in lca through a stent which had been placed in the cx."jailing" the lca, unable to advance the stent upon removing the stent from the body was found to be defected.This stent was retained.Stent number 2) 2.5 x 15 xience alpine ref 1125250-15 lot 7012341 while attempting to place this stent into the lca (as above) the stent became dislodged from balloon.Negative pressure had not been applied to the balloon before the stent came off.Dr.(b)(6) left the wire down the art and attempted to "catch" the sent in the end of the catheter.Removed the catheter after catching the stent at the end of the catheter, stent came out of catheter and traveled down the right leg when the catheter reached the sheath.Stent was located by fluro and retrieved by use of snare, removed stent, snare and balloon all retained.
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