Aim Of The Study: Our study aimed to assess the first-attempt success rate of ultrasound (US) and anatomical landmark (ALM) guidance for vascular cannulation in children with congenital heart disease in Switzerland.
Methods: A prospective observational multicentre study was conducted from January 2022 to January 2023 in three university hospitals in Switzerland. We included patients with congenital heart disease aged 0 to 18 years who were scheduled for elective cardiac catheterisation.