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Search: WFRF:(van Deursen Caroline J M)

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1.
  • van Deursen, Caroline J M, et al. (author)
  • Vectorcardiography for Optimization of Stimulation Intervals in Cardiac Resynchronization Therapy.
  • 2015
  • In: Journal of cardiovascular translational research. - : Springer Science and Business Media LLC. - 1937-5395 .- 1937-5387. ; 8:2, s. 128-137
  • Journal article (peer-reviewed)abstract
    • Current optimization of atrioventricular (AV) and interventricular (VV) intervals in cardiac resynchronization therapy (CRT) is time consuming and subject to noise. We aimed to prove the principle that the best hemodynamic effect of CRT is achieved by cancelation of opposing electrical forces, detectable from the QRS morphology in the 3D vectorcardiogram (VCG). Different degrees of left (LV) and right ventricular (RV) pre-excitation were induced, using variation in AV intervals during LV pacing in 20 patients with left bundle branch block (LBBB) and variation in VV intervals during biventricular pacing in 18 patients with complete AV block or atrial fibrillation. The smallest QRS vector area identified stimulation intervals with minimal systolic stretch (median difference [IQR] 20ms [-20, 20ms] and maximal hemodynamic response (10ms [-20, 40ms]). Reliability of VCG measurements was superior to hemodynamic measurements. This study proves the principle that VCG analysis may allow easy and reliable optimization of stimulation intervals in CRT patients.
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2.
  • van Deursen, Caroline J M, et al. (author)
  • Vectorcardiographic QRS area as a novel predictor of response to cardiac resynchronization therapy.
  • 2015
  • In: Journal of electrocardiology. - : Elsevier BV. - 1532-8430 .- 0022-0736. ; 48:1, s. 45-52
  • Journal article (peer-reviewed)abstract
    • QRS duration and left bundle branch block (LBBB) morphology are used to select patients for cardiac resynchronization therapy (CRT). We investigated whether the area of the QRS complex (QRSAREA) on the 3-dimensional vectorcardiogram (VCG) can improve patient selection.
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