Right ventricular dilatation and systolic dysfunction and relationship to QRS duration in patients with left bundle branch block and cardiomyopathy

2021 ◽  
Author(s):  
Seung‐Jung Park ◽  
Deborah H Kwon ◽  
John W Rickard ◽  
Niraj Varma
Keyword(s):  
Right Ventricular ◽  
Left Bundle Branch Block ◽  
Systolic Dysfunction ◽  
Ventricular Dilatation ◽  
Bundle Branch Block ◽  
Qrs Duration ◽  
Right Ventricular Dilatation

scholarly journals Ventricular tachycardia of left bundle branch block configuration in patients with isolated right ventricular dilatation. Clinical and electrophysiological features.

Heart ◽  
1984 ◽  
Vol 51 (1) ◽  
pp. 15-24 ◽  
Author(s):  
E Rowland ◽  
W J McKenna ◽  
D Sugrue ◽  
R Barclay ◽  
R A Foale ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Right Ventricular ◽  
Left Bundle Branch Block ◽  
Ventricular Dilatation ◽  
Bundle Branch Block ◽  
Right Ventricular Dilatation

Value of the Surface Electrocardiogram in Detecting Right Ventricular Dilatation in the Presence of Left Bundle Branch Block

2011 ◽  
Vol 107 (5) ◽  
pp. 736-740 ◽  
Author(s):  
Rutger J. Van Bommel ◽  
Nina Ajmone Marsan ◽  
Victoria Delgado ◽  
Eva P.M. van Rijnsoever ◽  
Martin J. Schalij ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Left Bundle Branch Block ◽  
Ventricular Dilatation ◽  
Bundle Branch Block ◽  
Surface Electrocardiogram ◽  
Right Ventricular Dilatation

scholarly journals PROLONGED QRS DURATION>140 MILLISECONDS AS A PREDICTOR OF LEFT VENTRICULAR SYSTOLIC DYSFUNCTION IN PATIENTS WITH LEFT BUNDLE BRANCH BLOCK

2020 ◽  
Vol 53 (3) ◽  
Author(s):  
Nisar Ahmed ◽  
Gul Zaman Khan Niazi ◽  
Hassaan Tariq ◽  
Ammar Akhtar ◽  
Muhammad Sohail Saleemi ◽  
...  
Keyword(s):  
Left Bundle Branch Block ◽  
Left Ventricular Systolic Dysfunction ◽  
Systolic Dysfunction ◽  
Left Ventricular ◽  
Ventricular Systolic Dysfunction ◽  
Bundle Branch Block ◽  
Qrs Duration

Comparison of Incidence of Left Ventricular Systolic Dysfunction Among Patients With Left Bundle Branch Block Versus Those With Normal QRS Duration

2017 ◽  
Vol 120 (11) ◽  
pp. 1990-1997 ◽  
Author(s):  
Edward Sze ◽  
Allison Dunning ◽  
Zak Loring ◽  
Brett D. Atwater ◽  
Karen Chiswell ◽  
...  
Keyword(s):  
Left Bundle Branch Block ◽  
Left Ventricular Systolic Dysfunction ◽  
Systolic Dysfunction ◽  
Left Ventricular ◽  
Ventricular Systolic Dysfunction ◽  
Bundle Branch Block ◽  
Qrs Duration

scholarly journals Associations between left bundle branch block with different PR intervals, QRS durations, heart rates and the risk of heart failure: a register-based cohort study using ECG data from the primary care setting

Open Heart ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. e001425
Author(s):  
Marc Meller Søndergaard ◽  
Johannes Riis ◽  
Karoline Willum Bodker ◽  
Steen Møller Hansen ◽  
Jesper Nielsen ◽  
...  
Keyword(s):  
Heart Failure ◽  
Primary Care ◽  
Heart Rate ◽  
Left Bundle Branch Block ◽  
Bundle Branch Block ◽  
Increased Risk ◽  
Pr Interval ◽  
Qrs Duration ◽  
The Impact

AimLeft bundle branch block (LBBB) is associated with an increased risk of heart failure (HF). We assessed the impact of common ECG parameters on this association using large-scale data.Methods and resultsUsing ECGs recorded in a large primary care population from 2001 to 2011, we identified HF-naive patients with a first-time LBBB ECG. We obtained information on sex, age, emigration, medication, diseases and death from Danish registries. We investigated the association between the PR interval, QRS duration, and heart rate and the risk of HF over a 2-year follow-up period using Cox regression analysis.Of 2471 included patients with LBBB, 464 (18.8%) developed HF during follow-up. A significant interaction was found between QRS duration and heart rate (p<0.01), and the analyses were stratified on these parameters. Using a QRS duration <150 ms and a heart rate <70 beats per minute (bpm) as the reference, all groups were statistically significantly associated with the development of HF. Patients with a QRS duration ≥150 ms and heart rate ≥70 bpm had the highest risk of developing HF (HR 3.17 (95% CI 2.41 to 4.18, p<0.001). There was no association between the PR interval and HF after adjustment.ConclusionProlonged QRS duration and higher heart rate were associated with increased risk of HF among primary care patients with LBBB, while no association was observed with PR interval. Patients with LBBB with both a prolonged QRS duration (≥150 ms) and higher heart rate (≥70 bpm) have the highest risk of developing HF.

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