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Change in peridevice leak grade from 2 to 12 months cardiac computed tomography (CT). The x axis denotes the absolute change in peridevice leak grade from 2 to 12 months CT scan. A negative number indicates a less severe grading at 12 months, while a positive number indicates a more severe grading at 12 months scan [Color figure can be viewed at wileyonlinelibrary.com]
