Arrhythmias & electrophysiology

Intracardiac Echocardiography–Guided Implantation for Proximal Left Bundle Branch Pacing

Circ Arrhythm ElectrophysiolPublished Randomised controlled trial

Authors' conclusion

ICE-guided PLBB pacing is feasible and safe, with a shorter duration required for the procedure and fluoroscopy, and generates greater LBB trunk pacing and PLBB pacing.

Study context

Population
Consecutive pacemaker-indicated patients undergoing left bundle branch (LBB) pacing implantationplus 20 in mapping part
Participants
101 patients
Comparison
Intracardiac echocardiography (ICE)-guided vs non-ICE LBB pacing lead implantation

Primary result

As reported in the abstract

Lead screw-in attempts in the septum

ICE

1.43

± 0.62

non-ICE

1.98

± 0.75

P = 0.0002

Further findings

Procedure duration

P < 0.001

Fluoroscopy time for LBB pacing implantation

P < 0.001

LBB trunk pacing

P = 0.031

PLBB pacing

P = 0.0267

QRS duration

Lesser QRS duration with ICE

Proximal LBB (PLBB) location (mapping part, n=20)

PLBB at 10 to 20 mm from tricuspid annulus toward apex; area (cm²)
4.5±1.1

Original publication

Intracardiac Echocardiography–Guided Implantation for Proximal Left Bundle Branch Pacing. Circ Arrhythm Electrophysiol. Published 16 March 2023. doi:10.1161/circep.122.011408

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