…all Western countries. According to a Cochrane review, for every 10,000 apparently healthy newborn infants, around six will have critical CHD, and the pulse…

…This results in a slightly irregular rhythm. Sinus arrhythmia occurs in the majority of healthy pediatric patients. P waves precede all QRS complexes and the…

…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…

…uncuffed tube age/4 + 4 tube size × 3 Term newborn 3.0–3.5 6 + weight in kg Always have one size smaller to hand…

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

…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 QRS complex. Axis deviation: right axis deviation (RAD) and left axis deviation (LAD) Causes of right axis deviation Normal in newborns. Right ventricular hypertrophy…

…I and II. Heart axis deviation: right axis deviation (RAD) and left axis deviation (LAD) Causes of right axis deviation Normal in newborns. Right ventricular…