Children with Pulmonary Hypertension Have Abnormal Flow patterns in the Main Pulmonary Artery as Shown By High Frame Rate Ultrasound Imaging

Background: Pediatric pulmonary arterial hypertension (PAH) is characterized by increased pulmonary vascular resistance and right ventricular (RV) hypertension. Flow characteristics are not well described in these patients. We aimed to study cardiac flow dynamics in patients with PAH compared with healthy controls (CTL). Methods: Patients