CTICasesIntra-aortic Balloon Pump Malposition
Imaging findings
PA and lateral chest radiographs in an ambulatory heart transplant candidate show an axillary-placed intra-aortic balloon pump (IABP) catheter buckled in the aortic arch, with the tip abnormally positioned in the ascending aorta. Diastolic gas inflation is visible within the balloon lumen.
Key takeaways
Axillary artery access for IABP is favored in transplant candidates as it allows for ambulation. However, it is prone to displacement or buckling into the ascending aorta. Radiographic surveillance, including lateral views, is key to confirming correct positioning in the descending thoracic aorta.
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