It was reported that no flow and chest pain occurred.The target lesion was located in a tortuous and moderately calcified left anterior descending artery.The lesion was pre-dilated and a guide extension catheter was used for stent delivery.A 2.50 x 38mm synergy xd drug-eluting stent (des) was deployed distally in the lesion with no issues reported.A 3.00 x 20mm synergy xd des was positioned proximal to the implanted stent, but when pressure was applied to the balloon, expansion occurred only in the front of the balloon.No flow and chest pain then occurred.Upon removal of the 3.00 x 20mm synergy xd, the shaft broke outside the patient.The procedure was completed with another device.
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