…characterized by echocardiography. In comparison with adult subjects, the echocardiographic evaluation in pediatric patients requires a different approach, with more emphasis on the heart position…

…In the fetus, as well as in the newborn, the QRS complex is dominated by electrical currents generated by the right ventricle. Large R waves…

…the fetal period. In the fetus, as well as in the newborn, the QRS complex is dominated by electrical currents generated by the right ventricl

…the heart rate, the electrical axis and the waveform in the newborn differ markedly from adult reference values and normalise gradually through childhood. The interpretation…

…whether the difficulties were anticipated, whether the position and the equipment are in order, and whether there is an explicit plan for what happens when…

…approximated manually by judging the net direction of the QRS complex in leads I and II. The following rules apply: Normal axis : Net positive QRS…

…approximated manually by judging the net direction of the QRS complex in leads I and II. The following rules apply: Normal axis: Net positive QRS…

…the heart rate is steadily decreasing, and by age 10 years the rate is the same as in adults. These age variations in heart rate…