Intraventricular Dyssynchrony among patients with left bundle branch block
Abdul Sami1, Malik Faisal Iftekhar2, Imran Khan3
1Dr. Abdul Sami, FCPS. Department of Cardiology, Hayatabad Medical Complex, Peshawar, Pakistan.
Pakistan Journal of Medical Sciences
|May 29, 2018
Summary
Intraventricular dyssynchrony is common in patients with left bundle branch block (LBBB), particularly those with heart failure. This condition affects a significant majority of LBBB patients, highlighting its clinical importance.
Area of Science:
- Cardiology
- Medical Imaging
- Electrophysiology
Background:
- Left bundle branch block (LBBB) can lead to cardiac dyssynchrony.
- Intraventricular dyssynchrony may impact heart failure outcomes.
- Understanding the prevalence of dyssynchrony in LBBB is crucial for patient management.
Purpose of the Study:
- To determine the frequency of intraventricular dyssynchrony in patients diagnosed with left bundle branch block.
- To assess the association between intraventricular dyssynchrony and heart failure in LBBB patients.
Main Methods:
- The study included 159 adult patients with LBBB on ECG.
- Exclusion criteria included valvular heart disease, recent coronary events, and atrial fibrillation.
- Tissue Doppler Imaging (TDI) was used to measure dyssynchrony parameters.
Main Results:
- A high prevalence of intraventricular dyssynchrony was observed in 78% of LBBB patients.
- 65% of the study population had co-existing heart failure.
- Dyssynchrony was more prevalent in patients with heart failure.
Conclusions:
- The incidence of intraventricular dyssynchrony is notably high in patients with left bundle branch block and heart failure.
- These findings underscore the importance of evaluating for dyssynchrony in this patient group.
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