Transient left bundle branch block and intraventricular dyssynchrony as a cause of reversible left ventricular dysfunction: The "in vivo" documentation of spontaneous electrical remodeling.
Eleonora MocciaGiuseppe Damiano SannaGuido ParodiPublished in: Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc (2019)
Spontaneous resolution of non-rate-dependent left bundle branch block (LBBB) has been rarely reported. We present the case of a 74-year-old woman admitted with pulmonary edema, a newly diagnosed LBBB and severe left ventricular (LV) dysfunction. Five months later, the patient was asymptomatic, the ECG recording showed complete regression of the LBBB to narrow QRS and LV function completely recovered. However, at one-year follow-up LBBB reappeared together with mild LV dysfunction. Spontaneous resolution of LBBB may be responsible for LV electrical and mechanical reverse remodeling in dyssynchronopathies.
Keyphrases
- left ventricular
- cardiac resynchronization therapy
- newly diagnosed
- oxidative stress
- heart failure
- hypertrophic cardiomyopathy
- acute myocardial infarction
- mitral valve
- aortic stenosis
- pulmonary hypertension
- single molecule
- case report
- heart rate
- heart rate variability
- acute coronary syndrome
- ejection fraction
- transcatheter aortic valve replacement
- blood brain barrier
- drug induced