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A rare variant of atrial parasystole in children

Atrial parasystole in children is more common than defined. It is an independent type of arrhythmia with high ectopic center activity. Diagnosis is possible only with electrocardiographic examination. For the left atrial form, the ECG of the right thoracic lead (V1) is the main element of examination. Atrial complex in V1 has a shield and sword shape (gentle ascending, terminal part of P,-high pointed). Electrocardiographic signs of atrial parasystole are temporal differences of pre-ectopic intervals, the multiplicity of inter-ectopic intervals, and the presence of confluent complexes.