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Figure 4 Left Ventricular Assist Device Cannula Obstruction From Trabeculation

(A) Transesophageal echocardiogram in the mid-esophageal 4-chamber view demonstrating inflow cannula of a left ventricular assist device (arrow). (B) Transgastric short-axis view demonstrates inflow cannula proximity to an area of hypertrabeculation that is consistent with non-compaction of the left ventricular myocardium (arrows). (C) Close-up view in the mid-esophageal 4-chamber view demonstrates an area of hypertrabeculation being pulled into the inflow cannula (arrow). (D) Continuous wave Doppler imaging demonstrates high velocities into the inflow cannula, consistent with partial obstruction.