Feasibility of intraprocedural integration of cardiac CT to guide left ventricular lead implantation for CRT upgrades.

ABSTRACT:

Background

Optimal positioning of the left ventricular (LV) lead is an important determinant of cardiac resynchronization therapy (CRT) response.

Objective

Evaluate the feasibility of intraprocedural integration of cardiac computed tomography (CT) to guide LV lead implantation for CRT upgrades.

Methods

Patients undergoing LV lead upgrade underwent ECG-gated cardiac CT dyssynchrony and LV scar assessment. Target American Heart Association segment selection was determined using latest non-scarred mechanically activating segments overlaid onto real-time fluoroscopy with image co-registration to guide optimal LV lead implantation. Hemodynamic validation was performed using a pressure wire in the LV cavity (dP/dt_max) ).

Results

18 patients (male 94%, 55.6

SUBMITTER: Gould J 

PROVIDER: S-EPMC8647921 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature