It was reported that balloon rupture and inadequate or insufficient apposition occurred.The 99% stenosed, target lesion was located in a severely tortuous and severely calcified obuse marginal branch segment/ left cirmuflex artery.The vessel was prepared with multiple balloons and a guidezilla guide extension catheter was needed to facilitate balloon and stent delivery.A 4.00x12mm synergy xd drug-eluting stent was deployed for treatment.However, during the initial inflation prior to reaching nominal pressure the balloon ruptured.It was noted that the balloon did not expand beyond the edges.The balloon was removed but the stent was severely underexpanded.After multiple attempts, 2.0 up to 4.0 balloons were used to fully inflate the stent and ensure adequate expansion.The patient was treated successfully with multiple stents back to the left main and the procedure was completed.No patient complications nor injuries reported.
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