What does selective HBP aim for in comparison to intrinsic H-V interval?

Selective His bundle pacing (HBP) is designed to achieve identical or nearly identical stimulus for ventricular activation compared to the intrinsic H-V interval. The goal of this method is to activate the ventricles in a manner that closely mimics the natural conduction system of the heart. By pacing at the His bundle, the electrical impulses are directed through the His-Purkinje system, facilitating near-normal ventricular activation patterns. This approach is intended to provide physiological ventricular activation, thus improving the timing of contractions and preserving the natural sequence of heartbeats.

In contrast, other options presented are less relevant to the primary objective of selective HBP. The method is not primarily focused on minimizing pacing thresholds or increasing the risk of atrial capture. Moreover, while QRS complex morphology may vary with different pacing sites, the main aim remains achieving physiological ventricular activation comparable to the intrinsic conduction pathway. Thus, the correct answer highlights the method's intention to produce similar ventricular activation as seen in naturally occurring heartbeats.