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Protection of Cardiac Function With Left Bundle Branch Pacing in Patients With Atrioventricular Block
Sponsor: The First Affiliated Hospital with Nanjing Medical University
Summary
OptimPacing study has been designed as a prospective, multi-center, randomized, controlled trial. A total of 11 medical centers across China will enroll 683 patients over an estimated recruitment period of 2 years. An LBBP group will be compared with a group of conventional RVP in the follow-up of at least 3 years. The study aimed to demonstrate (1) the superiority of LBBP in preserving LV systolic function over RVP and (2) the feasibility and long-term safety of LBBP in patients with AV block.
Official title: Protection on Cardiac Function With Left Bundle Branch Pacing in Patients With Atrioventricular Block(OptimPacing)
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
683
Start Date
2021-06-22
Completion Date
2028-06
Last Updated
2025-05-20
Healthy Volunteers
No
Conditions
Interventions
Left bundle branch pacing
LBBP is defined if fulfilling criterion 1 and at least one in criteria 2: 1. Paced morphology of RBBD in surface lead V1 (QR, Qr, rSr', rSR' or Qrs); 2. One of the following should be met: 1. Selective LBBP with an iso-electrical window between the pacing spike and QRS onset; 2. If using dual-lead method with one at His-bundle and the other at LBB region, a retrograde His-bundle potential is recorded from His-bundle lead during LBBP; 3. LVATs at lead tip pacing of 1.5V/0.5ms and 10V/0.5ms are ≤ 80ms and the difference is \< 10ms; 4. A discrete LBB potential is recorded from lead tip and LVAT at tip pacing of 3V/0.5ms is ≤ 80ms19. If criterion 1 is fulfilled but none in criteria 2 is met, the procedure is considered to be left ventricular septal pacing (LVSP).
Right ventricular pacing
Implantation of a RV pacing lead is attempted using the standard-of-care technique first.
Locations (1)
The First Affiliated Hospital with Nanjing Medical University
Nanjing, Jiangsu, China