(b)(4).The device was not returned for evaluation.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.The reported patient effect of perforation, as listed in the absorb gt1 instructions for use (ifu) is a known adverse event associated with the use of a coronary scaffold in native coronary arteries.It should be noted that the ifu states: do not exceed rbp (rated burst pressure) of the balloon or maximum deployment diameter of the scaffold.Based on the case information and related record review, a conclusive cause for the reported patient effect, and the relationship to the product, if any, cannot be determined.Based on the information reviewed, there is no indication of a product quality issue with respect to manufacture, design or labeling.
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It was reported that during the procedure to treat a mildly calcified lesion in the heavily tortuous mid to distal left anterior descending coronary artery, a 2.5mm x 18mm absorb gt1 scaffold delivery system was advanced with ease to the target lesion.When deploying the gt1 scaffold without issue at 18 atmospheres, a distal edge perforation occurred.The perforation was successfully sealed via prolonged inflations with an unspecified 2.25mm balloon.There were no device issues, no adverse patient sequelae, and no occurrence of a clinically significant delay.No additional information was provided.
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