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  • Title: Structural assessment of myocardial infarction scars and left ventricular function with cardiac magnetic resonance imaging in patients at high risk of sudden cardiac death.
    Author: Neuschl V, Berecova Z, Madaric J, Simkova J, Glezlova A, Hatala R.
    Journal: Bratisl Lek Listy; 2018; 119(5):259-264. PubMed ID: 29749237.
    Abstract:
    OBJECTIVES: Results of qualitative and quantitative analyses of scars and LV (left ventricle) function acquired by means of cardiac magnetic resonance (CMR) were correlated with a subsequent occurrence of malignant ventricular arrhythmias in patients at high risk of sudden cardiac death (SCD). METHODS: We have prospectively followed 47 patients (mean age 60 ± 11 years) who were hospitalized for an implantable cardioverter-defibrillator (ICD) implantation to prevent SCD. All post-MI patients had severe residual LV dysfunction (LVEF 33±14%). Patients were examined with CMR. Based on CMR analysis, we evaluated the basic functional parameters of LV as well as mass, volume, transmurality and heterogeneity of the post-MI scar. RESULTS: The patients with malignant arrhythmias were characterized by smaller LV end-diastolic diameters (LVED 192 ± 79 vs 254 ± 47 mm, p = 0.003) and end-systolic diameters (LVES 131 ± 80 vs 181 ± 45 mm, p = 0.01). As for the other observed functional and morphological CMR parameters, no significant differences between the two groups were detected. CONCLUSION: These results indicate that post-MI patients with severe residual left ventricular dysfunction and dilatation are in the long term characterized by a lower incidence of malignant arrhythmias compared to the patients with less dilated LV with a comparably severe LV dysfunction (Tab. 2, Fig. 3, Ref. 26). Text in PDF www.elis.sk.
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