We thank Drs. Koestenberger and Ravekes for their very valuable comments on our recently published guidelines on targeted neonatal echocardiography. As stated in the guidelines, we indeed recommended the use of quantitative measurements in the assessment of right ventricular function. At the time of the publication of the guidelines, no good reference values for tricuspid annular plane systolic excursion or systolic tissue Doppler velocities were available for neonates and preterm infants. The recent contributions by Dr. Koestenberger’s group fill this gap, as they have published excellent reference data based on a large group of normal term and preterm infants. The availability of Z scores for tricuspid annular plane systolic excursion and systolic tissue Doppler velocities provides us with the necessary tools and allows us to include these simple measurements in a standard targeted neonatal echocardiographic examination. We still need to understand how disease affects measurements in this population, but we consider this an important first step. We thank the authors for providing these valuable additions to our guidelines. We hope that further research done by different groups worldwide will provide us with better tools to assess neonatal hemodynamics.