Pitfalls in programming: The HV and VH intervals in his bundle pacing

His bundle pacing provides physiologic ventricular activation in patients with high-grade atrio-ventricular (AV) nodal or intra-Hisian block without the deleterious ventricular dyssynchrony that accompanies right ventricular (RV) apical pacing [1, 2]. Because His bundle lead placement may be accompanied by higher rates of acute lead dislodgement and greater long-term variability in capture threshold compared to RV apical lead placement, backup RV apical pacing may be desirable in cases of high-grade AV block without an adequate ventricular escape rhythm [3].

Source: Journal of Electrocardiology - June 4, 2018 Category: Cardiology Authors: Zak Loring, Daniel J. Friedman, Albert Y. Sun, Brett D. Atwater Source Type: research