Bundle-branch block morphology and other predictors of outcome after cardiac resynchronization therapy in Medicare patients

KC Bilchick, S Kamath, JP DiMarco, GJ Stukenborg - Circulation, 2010 - Am Heart Assoc
Background—Clinical trials of cardiac resynchronization therapy (CRT) have enrolled a
select group of patients, with few patients in subgroups such as right bundle-branch block …

QRS duration, bundle-branch block morphology, and outcomes among older patients with heart failure receiving cardiac resynchronization therapy

PN Peterson, MA Greiner, LG Qualls, SM Al-Khatib… - Jama, 2013 - jamanetwork.com
Importance The benefits of cardiac resynchronization therapy (CRT) in clinical trials were
greater among patients with left bundle-branch block (LBBB) or longer QRS duration …

Left bundle branch block predicts better survival in women than men receiving cardiac resynchronization therapy: long-term follow-up of∼ 145,000 patients

Z Loring, DA Caños, K Selzman, ND Herz… - JACC: Heart Failure, 2013 - jacc.org
Objectives: The goal of this study was to test the hypothesis that in recipients of cardiac
resynchronization therapy defibrillators (CRT-D), conventional left bundle branch block …

Upgrade and de novo cardiac resynchronization therapy: impact of paced or intrinsic QRS morphology on outcomes and survival

A Wokhlu, RF Rea, SJ Asirvatham, T Webster… - Heart Rhythm, 2009 - Elsevier
BACKGROUND: Cardiac resynchronization therapy (CRT) improves outcomes in patients
with left bundle branch block (LBBB), but the benefits of CRT in patients with other QRS …

Cardiac resynchronization therapy in non‐left bundle branch block morphologies

J Rickard, DJ Kumbhani, EZ Gorodeski… - Pacing and clinical …, 2010 - Wiley Online Library
Introduction: In select patients with systolic heart failure, cardiac resynchronization therapy
(CRT) has been shown to improve quality of life, exercise capacity, ejection fraction (EF) …

The definition of left bundle branch block influences the response to cardiac resynchronization therapy

ML Caputo, A van Stipdonk, A Illner… - International journal of …, 2018 - Elsevier
Background CRT has been proven to achieve most benefit in patients with left bundle
branch block morphology (LBBB). However, ECG criteria to define LBBB significantly differ …

Cardiac resynchronization therapy in patients with right bundle branch block: analysis of pooled data from the MIRACLE and Contak CD trials

CA Egoavil, RT Ho, AJ Greenspon, BB Pavri - Heart Rhythm, 2005 - Elsevier
BACKGROUND: Clinical trials of cardiac resynchronization therapy (CRT) have not included
many patients with right bundle branch block (RBBB). OBJECTIVES: We pooled data from …

Usefulness of baseline electrocardiographic QRS complex pattern to predict response to cardiac resynchronization

EC Adelstein, S Saba - The American journal of cardiology, 2009 - Elsevier
Cardiac resynchronization therapy (CRT) improved morbidity and mortality in patients with
heart failure with QRS> 120 ms, yet most patients studied in clinical trials manifested …

Probability and magnitude of response to cardiac resynchronization therapy according to QRS duration and gender in nonischemic cardiomyopathy and LBBB

N Varma, M Manne, D Nguyen, J He, M Niebauer… - Heart Rhythm, 2014 - Elsevier
Background QRS morphology and QRS duration (QRSd) determine cardiac
resynchronization therapy (CRT) candidate selection but criteria require refinement …

Predictors of response to cardiac resynchronization therapy: a systematic review

J Rickard, H Michtalik, R Sharma, Z Berger… - International journal of …, 2016 - Elsevier
Background Multiple studies have sought to determine variables associated with improved
“response” to cardiac resynchronization therapy (CRT). Such variables, however, are often …