It was reported that the stretched coil remained inside the body.An 8mm x 20cm interlock coil was selected for use in the right renal aneurysm.During the procedure, renal aneurysm embolization was performed with interlock coils, delivered by a microcatheter, and heparin saline perfusion was performed.However, there was obvious resistance when the coil was advanced into the catheter, and it could not continue to be advanced at 2-3cm of the catheter.After the catheter was withdrawn, it was found that coil was stretched, and the stretched part remained in the patient and could not be taken out.The physician tried to withdraw it with a snare, but it failed.The procedure was completed with another of the same device.No complications were reported, and the patient was stable post procedure.
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