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BACKGROUND To the best of our knowledge, normal limits of heart rate with respect to gender, and as established using 24-hour ambulatory Holter electrocardiography, have yet to be published for the entire age range of children and adolescents. OBJECTIVES To establish the normal limits for heart rate in newborns, infants, children, and adolescents of both(More)
BACKGROUND Classic symptoms of long QT syndrome (LQTS) include prolongation of QT interval on electrocardiograph, syncope, and cardiac arrest due to a distinctive form of polymorphic ventricular tachycardia, known as Torsade de Pointes. We assessed occurrence of LQTS signs in individuals from 30 Czech families with mutations in KCNQ1 and KCNH2 genes. (More)
BACKGROUND Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare hereditary arrhythmia. The onset of clinical symptoms usually occurs during childhood, and is typically related to exercise. The aim of our study was to describe the clinical characteristics of seven Czech families with CPVT and the results of mutational analysis of the RyR2(More)
AIMS We aimed to evaluate long-term utilization and results of paediatric radiofrequency catheter ablation (RFCA) in a population-based study. METHODS AND RESULTS Data from all three centres performing paediatric RFCA for the whole population of the Czech Republic between 1993 and 2010 were retrospectively reviewed. A total of 708 ablation procedures in(More)
BACKGROUND Data on the results and clinical effect of an invasive risk stratification strategy in asymptomatic young patients with the Wolff-Parkinson-White electrocardiographic pattern are scarce. METHODS AND RESULTS Eighty-five consecutive patients aged<18 years with a Wolff-Parkinson-White pattern and persistent preexcitation at maximum exercise(More)
This paper presents the method of dependability parameters improvement for systems based on unreliable components such as Field Programmable Gate Arrays (FPGAs). It combines Concurrent Error Detection (CED) techniques [4], FPGA dynamic reconfigurations and our previously designed Modified Duplex System (MDS) architecture. The methodology is developed with(More)
This paper proposes a method improving the fault-coverage capabilities of Field Programmable Gate Array (FPGA) designs. Faults are mostly single event upsets (SEUs) in the configuration memory of SRAM-based FPGAs and they can change the functionality of an implemented design. These changes may lead to crucial mistakes and cause damage to people and(More)
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