Reproducibility of measuring QRS duration and implications for optimization of interventricular pacing delay in cardiac resynchronization therapy.

Charlotte StephansenMads Brix KronborgChristoffer Tobias WittJens KristensenChristian GerdesAnders SommerJesper Møller JensenJens Cosedis Nielsen

Published in: Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc (2018)

Interobserver variation and intraobserver variation in manually measured paced and intrinsic rhythm QRS duration are clinically acceptable and comparable in a cohort of CRT patients. Inter and intraobserver reproducibility for selecting the optimal VVd is good and warrants manual VVd optimization for QRS narrowing in CRT.

Keyphrases

cardiac resynchronization therapy
left ventricular
heart failure
end stage renal disease
newly diagnosed
ejection fraction
atrial fibrillation
prognostic factors
patient reported outcomes