What is the desired outcome of selective His Bundle Pacing?

The desired outcome of selective His Bundle Pacing is to achieve normal intraventricular conduction. This method involves pacing the heart at the His bundle, which is part of the conduction system responsible for coordinating the electrical impulses between the atria and ventricles. By stimulating the His bundle directly, the pacing allows for the physiological conduction pathways to remain largely intact, thereby promoting more synchronous contraction of the ventricles.

Normal intraventricular conduction is crucial because it ensures that the timing of the electrical impulses is appropriate, leading to effective and coordinated heartbeats. This approach can help maintain the natural sequence of activation in the ventricles, which is typically disrupted in conditions like bundle branch block or heart failure where the conduction system is impaired.

In contrast, outcomes such as achieving a wide QRS complex, slow ventricular activation, or loss of effective communication with the atria do not align with the goals of selective His Bundle Pacing, which aims primarily to restore normal conduction pathways rather than disrupt them.