Left Septal Pacing or Left Bundle Branch Pacing to Avoid Left Ventricle Systolic Dysfunction
Left Septal Pacing or Left Bundle Branch Pacing to Avoid Left Ventricle Systolic Dysfunction. A Multicenter Randomized Trial From the STAY Investigators
About This Trial
Right ventricular apical pacing (RVAP) can produce left ventricular dysfunction (LVD). Conduction system pacing (CSP) has been used successfully to reverse LVD in patients with left bundle branch block. A recent randomized controlled trial (RCT) has demonstrated that CSP, mostly performed with left bundle branch area pacing (LBBAP), can preserve normal ventricular function and heart failure admissions compared to RVAP in the setting of a high burden of ventricular pacing11 (Stay Trial). Criteria to assess the LBBAP distinguishes those cases in which the LBB is captured (LBBP) from those in which only the muscular septum surrounding the LBB is captured (LVSP). To date, data regarding LVSP to preserve left ventricle ejection fraction (LVEF) is scarce and limited to non-randomized studies.
Who May Be Eligible (Plain English)
Original Eligibility Criteria
View original clinical language
Treatments Being Tested
Pacemaker and defibrillator
Pacemaker implantation, which can be a regular right ventricle apical lead or a LBBAP lead (LBBP or LVSP dependint on the criteria accomplished).