A new perspective on aortic pressure for transcatheter closure of patent ductus arteriosus in the pediatric population

WHAT'S NEW?Currently, the qualification of patients for patent ductus arteriosus (PDA) closure is based mainly on echocardiographic findings rather than more precise invasive measurements during cardiac catheterization.The invasive procedure mainly involves duct closure without additional hemodynamic evaluation.In this article, we propose a simple and quick transarterial technique to evaluate the hemodynamic changes accompanying the closure of PDA done during the same procedure.To the best of our knowledge, this is the first study to routinely assess the systolic blood pressure difference between the ascending and descending aorta before and after PDA closure.This may contribute to a better understanding of hemodynamic changes during the procedure and assessing return to physiological conditions immediately after closure.