CTICasesImpella-Induced Defibrillator Lead Displacement
Imaging findings
Frontal chest radiographs before and after a clinical intervention demonstrate a shift in the position of an implantable cardioverter-defibrillator (ICD) lead. Following the placement of a right-sided Impella catheter, the ICD lead is visibly pushed and displaced toward the right ventricular outflow tract (RVOT).
Key takeaways
The placement of multiple percutaneous mechanical circulatory support devices, such as an Impella catheter, can mechanically interfere with pre-existing cardiac hardware. Radiologists should scrutinize the positioning of pacemaker and defibrillator leads on post-procedure radiographs to identify subtle migrations or displacements caused by newly introduced devices, which can compromise pacing or shock delivery.
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