Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Marterer, R; Hongchun, Z; Tschauner, S; Koestenberger, M; Sorantin, E.
Cardiac MRI assessment of right ventricular function: impact of right bundle branch block on the evaluation of cardiac performance parameters.
Eur Radiol. 2015; 25(12):3528-3535
Doi: 10.1007/s00330-015-3788-y
Web of Science
PubMed
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FullText_MUG
- Leading authors Med Uni Graz
- Marterer Robert
- Co-authors Med Uni Graz
- Koestenberger Martin
- Sorantin Erich
- Tschauner Sebastian
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- Abstract:
- Right ventricular (RV) function represents a prognostic marker in patients with corrected congenital heart disease. In up to 80 % of these patients, right branch bundle block (RBBB) exists and leads to asynchronous ventricular contraction. The aim of this retrospective study was to evaluate the change of RV performance parameters considering delayed RV end-systolic contraction. RV volumes of 33 patients were assessed twice: 1) not taking account of RBBB (group I), and 2) considering RBBB (group II). According to the RV ejection fraction (EF) for both groups, RV function was classified in different categories (>50 % = normal, 40-50 % = mildly-, 30-40 % = moderately-, <30 % = severely-reduced). The mean time difference between maximal systolic contraction of the septum and RV free wall was 90.7 ms ± 42.6. Consequently, RV end-systolic volume was significantly decreased in group II (p < 0.001). Accordingly, RV stroke volume and RV EF were significantly higher in group II (p < 0.001). There was also a significant change in the assessment of RV function (p < 0.02). RBBB induced delayed RV contraction can be detected at CMR. Ignoring the RV physiology in RBBB patients leads to a statistically significant underscoring of RV performance parameters. • Right branch bundle block leads to an asynchronous ventricular contraction • In CMR, a delayed right ventricular contraction due to RBBB can be detected • Ignoring RV physiology in RBBB patients leads to underscoring of RV performance.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Bundle-Branch Block - complications
- Bundle-Branch Block - physiopathology
- Female -
- Heart Defects, Congenital - complications
- Heart Defects, Congenital - physiopathology
- Heart Ventricles - physiopathology
- Humans -
- Magnetic Resonance Imaging -
- Male -
- Reproducibility of Results -
- Retrospective Studies -
- Ventricular Dysfunction, Right - complications
- Ventricular Dysfunction, Right - physiopathology
- Young Adult -
- Find related publications in this database (Keywords)
- Congenital heart defects
- Magnetic resonance imaging
- Bundle-branch block
- Ventricular ejection fraction
- Tetralogy of Fallot