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It was reported that the balloon was slow to deflate.The 100% stenosed target lesion was located in the mildly tortuous and calcified carotid artery.A 4.0mmx40mmx135cm (4f) sterling balloon catheter was advanced for dilatation and inflated to 12 atmospheres for 1 min.However, during the procedure, the balloon was too slow to inflate and deflate.The balloon was pulled out and removed in a deflated state, and the procedure was completed with this device.No patient complications were reported, and the patient condition was good.
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