A new method to recommend left ventricular lead positions for improved CRT volumetric response and long-term prognosis.

ABSTRACT:

Objectives

Using ECG-gated single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI), we sought to develop and validate a new method to recommend left ventricular (LV) lead positions in order to improve volumetric response and long-term prognosis after cardiac resynchronization therapy (CRT).

Methods

Seventy-nine patients received gated SPECT MPI at baseline, and echocardiography at baseline and follow-up. The volumetric response referred to a reduction of ≥ 15% in LV end-systolic volume 6 months after CRT. After excluding apical, septal, and scarred segments, there were three levels of recommended segments: (1) the optimal recommendation: the latest contracting viable segment; (2) the 2nd recommendation: the late contracting viable segments whose

SUBMITTER: Zhang X 

PROVIDER: S-EPMC10959571 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature