It is possible to cardiovert AFib during a DFT. True or False?

It is possible to cardiovert AFib during a DFT. True or False?

• A. True
• B. False
• C. Not Applicable
• D. Sometimes

Answer: (A)

Cardioversion can restore sinus rhythm from atrial fibrillation by delivering a synchronized shock to the atria. A defibrillation threshold test focuses on finding the energy needed to terminate ventricular fibrillation, but this doesn’t preclude using a synchronized atrial shock if atrial fibrillation is present during the test. In other words, the device or the clinical setup can switch to a synchronized cardioversion mode to convert AFib, separate from the unsynchronized defibrillation used for VF. If AFib is ongoing or reappears during the testing, a properly timed synchronized shock can be used to reestablish sinus rhythm. As with any AFib intervention, consider thromboembolic risk and anticoagulation timing based on how long AFib has been present.

Cardioversion can restore sinus rhythm from atrial fibrillation by delivering a synchronized shock to the atria. A defibrillation threshold test focuses on finding the energy needed to terminate ventricular fibrillation, but this doesn’t preclude using a synchronized atrial shock if atrial fibrillation is present during the test. In other words, the device or the clinical setup can switch to a synchronized cardioversion mode to convert AFib, separate from the unsynchronized defibrillation used for VF. If AFib is ongoing or reappears during the testing, a properly timed synchronized shock can be used to reestablish sinus rhythm. As with any AFib intervention, consider thromboembolic risk and anticoagulation timing based on how long AFib has been present.