What event has to occur between therapies in an episode?

What event has to occur between therapies in an episode?

• A. Redetection
• B. Reset
• C. Refractory
• D. Reentry

Answer: (A)

Redetection is the event that must happen between therapies in an episode. After the initial therapy terminates a tachyarrhythmia, the device or system waits during a post-therapy window and only delivers a subsequent therapy if the tachyarrhythmia is detected again. This re-detection ensures that another therapy is given only if the rhythm disturbance recurs. Reset would imply clearing the detection state rather than requiring a new detection, which isn’t what triggers a second therapy. Refractory refers to a post-therapy period when tissue or circuitry is temporarily unresponsive, not to the requirement for re-detection. Reentry is a mechanism that can underlie tachyarrhythmias, not the event that governs delivering successive therapies.

Redetection is the event that must happen between therapies in an episode. After the initial therapy terminates a tachyarrhythmia, the device or system waits during a post-therapy window and only delivers a subsequent therapy if the tachyarrhythmia is detected again. This re-detection ensures that another therapy is given only if the rhythm disturbance recurs.

Reset would imply clearing the detection state rather than requiring a new detection, which isn’t what triggers a second therapy. Refractory refers to a post-therapy period when tissue or circuitry is temporarily unresponsive, not to the requirement for re-detection. Reentry is a mechanism that can underlie tachyarrhythmias, not the event that governs delivering successive therapies.