After the deployment of the synergy xd monorail everolimus-eluting platinum chromium coronary stent system, the balloon would not pull back into the guide catheter.Multiple attempts were made by the interventional cardiologist to deflate the balloon and remove the balloon and wire.The balloon of the synergy xd monorail everolimus-eluting platinum chromium coronary stent system detached from the catheter.A small segment (<1mm in size) of the balloon marker became detached from the balloon and was unable to be retrieved from the right coronary artery.The interventional cardiologist was able to retrieve the severed balloon, utilizing the patient's femoral vein as the balloon had migrated below the patient's knee.The small portion of the balloon marker was unable to be retrieved by the interventional cardiologist and remained in the rca.The interventional cardiologist documented the tip of the balloon marker did not require additional attempts to remove as it is very small, and the patient will be treated medically.
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