Yu Z, et al. – The specialists carried out an integrative and quantitive evaluation, in order to compare the efficacy of His bundle related pacing (HBRP) with conventional right ventricular pacing (RVP). Their investigations revealed that HBRP markedly preserves left ventricular ejection fraction (LVEF), New York Heart Association (NYHA) class, and QRS duration, compared with RVP. However, its effect on ventricular volume was less.