Left Bundle Branch Pacing in Transthyretin Cardiac Amyloidosis and Alternating Bundle Branch Block
Taha Ahmed, Samra Haroon Lodhi, Hassan Mehmood Lak, Jae Lee, Mazen Hanna, Roy Chung
Abstract
Progressive conduction system disease affects patients with transthyretin cardiac amyloidosis, often requiring permanent pacing as the His-Purkinje system is affected. We present a case of left bundle branch pacing in a patient with transthyretin cardiac amyloidosis and infra-Hisian conduction disease with a favorable improvement in cardiac function and stable pacing thresholds. (Level of Difficulty: Intermediate.)
Topics & Concepts
TransthyretinAmyloidosisInternal medicineCardiologyCardiac amyloidosisMedicineBundleCardiac function curveElectrical conduction system of the heartLeft bundle branch blockElectrocardiographyHeart failureMaterials scienceComposite materialCardiac Arrhythmias and TreatmentsCardiac pacing and defibrillation studiesCardiac electrophysiology and arrhythmias