Conclusion
CF-LVAD patients may tolerate life-threatening VAs for certain period of time with no or minimal symptoms as the device supports their native cardiac function. These patients with CF-LVADs should be carefully evaluated for arrhyth­mias when presenting with any type of illness. If VF is suspected on ECG in a CF-LVAD patient, presence of organized cardiac activity on echocardiogram can be misleading in context of the patient’s full clinical picture. It is important to take CF-LVAD parameters, including low flow alarms and changes in the flow waveform, into consideration as data points in the decision-making process as management with early cardiac defibrillation may be warranted.