Hana Petrášová

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Based on the presumption of the activation front splitting, the authors present their own proposal for the estimation of the myocardial electric activation course and for the detection of micropotentials 'hidden' within QRS complexes by the method of high-resolution electrocardiography. After filtration of QRS complex the values of delta RMS and those of(More)
Long-term cardiac complications, occurring several years after completion of anticancer treatment, may develop from subclinical myocardial damage induced during cardiotoxic therapy. The aim of this study was to evaluate the usefulness of frequency-domain signal-averaged ECG analysis of the QRS complex for assessing the cardiotoxicity of anthracycline(More)
The signal-averaged electrocardiography (SAECG) identifies patients at risk of ventricular arrhythmias and sudden cardiac death. Since the similarity has been known of the pharmacology of class I antiarrhythmics and tricyclic antidepressants, the potential proarrhythmic effects of antidepressants has become a particular problem. The influence of sodium(More)
OBJECTIVE An attempt to detect the 'parasitic contribution' of high frequencies in the electrocardiogram signal. DESIGN A new method--gliding window fast Fourier transform analysis (GWFFTA)--was developed. It was applied in healthy subjects and in patients with acute myocardial infarction. SETTING Faculty of Medicine and University Hospital. PATIENTS(More)
OBJECTIVES The aim of the study was to evaluate the ability of contrast-enhanced ultrasonography compared to gray-scale B-mode and power Doppler in distinction between benign and malignant lymphadenopathy. METHODS In a prospective study ultrasonography was performed in 133 patients with superficial lymphadenopathy (73 men, 60 women; mean age of 51 years,(More)
Doxorubicin is one of the most effective anticancer drug, but its usefulness is limited by the risk of developing cardiomyopathy, cardiac dysfunction and ventricular arrhythmias. Dexrazoxane is used to protect against doxorubicin cardiotoxicity. It is uncertain whether the dexrazoxane-mediated cardioprotective effect will be reflected in(More)
Fractionated heart activation can be detected as late potentials from surface recordings of signal-averaged electrocardiograms (SA ECG) which are considered as a marker of sustained ventricular tachycardia. For animal studies, reference values in time and frequency domain analyses are essentially missing. In the present study, we have established reference(More)
At present the number of cancer survivors is still increasing. However, their long-term quality of life after anticancer treatment can be decreased. Radiotherapy may represent a risk for the future of some oncologic patients. The late cardiovascular effects of radiotherapy to the area of thorax, cranium and to the abdominal area are the actual(More)