Publications by authors named "Thomas M Helle-Valle"
Article Synopsis
- The study investigated arrhythmic mitral valve syndrome, focusing on the incidence and characteristics of life-threatening ventricular arrhythmias in affected patients.
- Through the use of implantable loop recorders (ILR) and cardioverter-defibrillators (ICD), researchers tracked occurrences of severe ventricular arrhythmias over an average follow-up of 3.1 years.
- Results indicated a notable annual incidence rate of severe arrhythmias, particularly in patients with ICDs, with factors like frequent premature ventricular complexes and larger heart dimensions being linked to an increased risk of arrhythmic events.
Background: Mitral annulus disjunction (MAD) is an abnormal atrial displacement of the mitral valve leaflet hinge point. MAD has been associated with mitral valve prolapse (MVP) and sudden cardiac death.
Objectives: The purpose of this study was to describe the clinical presentation, MAD morphology, association with MVP, and ventricular arrhythmias in patients with MAD.
Background: Early detection of structural changes in left atrium (LA) before atrial fibrillation (AF) development could be helpful in identification of those at higher risk for AF. Using cardiac magnetic resonance imaging, we examined the association of LA volume and function, and incident AF in a multiethnic population free of clinical cardiovascular diseases.
Methods And Results: In a case-cohort study embedded in MESA (Multi-Ethnic Study of Atherosclerosis), baseline LA size and function assessed by cardiac magnetic resonance feature-tracking were compared between 197 participants with incident AF and 322 participants randomly selected from the whole MESA cohort.
Objectives: The goal of this study was to assess the association between left atrial (LA) volume and function measured with feature-tracking cardiac magnetic resonance (CMR) and development of heart failure (HF) in asymptomatic individuals.
Background: Whether alterations of LA structure and function precede or follow HF development remains incompletely understood. We hypothesized that significant alterations of LA deformation and architecture precede the development of HF in the general population.
We introduce and evaluate strain mapping by multidetector computer tomography as a new noninvasive method for assessment of myocardial function. In patients (n = 16) with healed myocardial infarction, peak systolic radial strain was measured by automated pixel pattern matching analysis of multiple left ventricular 64-slice multidetector computer tomographic short-axis recordings. For comparison, radial strain and myocardial infarct extent were measured by tagged magnetic resonance imaging (MRI) and late enhancement MRI, respectively.
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