Optimizing Diagnostics Of Arrhythmia Events In Children Using Intelligent Telemetric Solutions (TELEMARC2)

• Recording of symptomatic or life threatening arrhythmia event [ Time Frame: within 30 days since the start of monitoring ] [ Designated as safety issue: No ]
  ECG monitoring is conducted until occurrence of symptomatic arrhythmia or life threatening arrhythmia but not longer than 30 days. Patients in the control group will have standard ECG Holter monitoring repeated twice
  
  

• Occurrence of silent (asymptomatic) arrhythmia event [ Time Frame: within 30 days since the start of monitoring ] [ Designated as safety issue: No ]
  
• Verification of patient self assessment based on the Quality of Life questionnaire and European Heart Rhythm Association (EHRA) scale against evidence of cardiac arrhythmia occurrence [ Time Frame: within 30 days since the start of monitoring ] [ Designated as safety issue: No ]
  

Irregular and/or rapid beating of the heart called heart palpitations can occur in individuals without heart disease and the reasons for their palpitations are unknown. Together with heart palpitations silent arrhythmia may be present that could lead to serious complications (eg. stroke). In others, palpitations result from heart rhythm disturbances, sometimes life threatening. Standard diagnostic methods such as 24 hours Holter electrocardiogram (ECG) monitoring or Event Holter do not guarantee early diagnosis of the arrhythmia. Prolonged heart rhythm recording and analysis using an automatic full disclosure telemetric device can increase probability of arrhythmia diagnosis and early administration of applicable treatment. Study patients will be diagnosed using standard Holter ECG monitoring, Event Holter or 30 days telemetric ECG monitoring. Efficacy of telemetric monitoring in diagnosis of cardiac arrhythmia will be assessed in comparison with the standard Holter monitoring and Event Holter