Which option on the programmer is used to induce AFib, according to the standard terminology in this context?

Which option on the programmer is used to induce AFib, according to the standard terminology in this context?

• A. Atrial overdrive pacing
• B. Atr NIPS
• C. Burst pacing
• D. Sensing inhibition

Answer: (B)

The method being tested is a noninvasive programmed stimulation of the atrium. This approach, abbreviated as atrial NIPS, delivers a sequence of paced atrial impulses with carefully chosen extra stimuli to test whether the atrial tissue can be driven into a reentrant circuit that starts atrial fibrillation. It’s a standardized way to provoke AF in a controlled setting using the programmer, because it systematically challenges the atrial substrate with specific coupling intervals. Atrial overdrive pacing is typically used to suppress ectopy or prevent AF by keeping the atrial rate steady, not to provoke AF. Burst pacing involves a rapid series of beats but isn’t the specific noninvasive programmed stimulation protocol referenced here. Sensing inhibition deals with how the device responds to sensed activity and is not a pacing protocol for inducing AF.

The method being tested is a noninvasive programmed stimulation of the atrium. This approach, abbreviated as atrial NIPS, delivers a sequence of paced atrial impulses with carefully chosen extra stimuli to test whether the atrial tissue can be driven into a reentrant circuit that starts atrial fibrillation. It’s a standardized way to provoke AF in a controlled setting using the programmer, because it systematically challenges the atrial substrate with specific coupling intervals.

Atrial overdrive pacing is typically used to suppress ectopy or prevent AF by keeping the atrial rate steady, not to provoke AF. Burst pacing involves a rapid series of beats but isn’t the specific noninvasive programmed stimulation protocol referenced here. Sensing inhibition deals with how the device responds to sensed activity and is not a pacing protocol for inducing AF.