It is possible to have a stored IEGM without detection. True or False?

It is possible to have a stored IEGM without detection. True or False?

• A. True
• B. False
• C. Not applicable
• D. Unknown

Answer: (B)

In rhythm management devices, stored intracardiac electrograms (IEGMs) are tied to detected episodes. The device keeps an IEGM to show exactly what the heart was doing when it recognized a tachyarrhythmia or another event. Because the IEGM data are used to verify and review detections, there isn’t a stored IEGM record for an event that the device did not detect. If no detection occurs, there isn’t a corresponding stored IEGM to review. So the statement is not true: you don’t get a stored IEGM without a detected event.

In rhythm management devices, stored intracardiac electrograms (IEGMs) are tied to detected episodes. The device keeps an IEGM to show exactly what the heart was doing when it recognized a tachyarrhythmia or another event. Because the IEGM data are used to verify and review detections, there isn’t a stored IEGM record for an event that the device did not detect. If no detection occurs, there isn’t a corresponding stored IEGM to review.

So the statement is not true: you don’t get a stored IEGM without a detected event.