Percutaneous Closure of Ductus Arteriosus in Preterm Babies: The Initial Brazilian Experience.

Background: The presence of patent ductus arteriosus can be as high as 50% in preterm babies. Hemodynamically significant patent ductus arteriosus is a common cause of delayed weaning of respiratory support and an important risk factor of necrotizing enterocolitis, intraventricular hemorrhage, and bronchopulmonary dysplasia in this population.

Objective: The aim of this study is to describe an initial experience of percutaneous closure of the ductus arteriosus in preterm infants weighing less than 2 kg.

Immediate and short-term outcomes after percutaneous atrial septal defect closure using the new nit-occlud ASD-R device.

Objectives: To evaluate the feasibility, safety, and efficacy of implantation of the new Nit Occlud ASD-R® (NOASD-R) device for percutaneous closure of ostium secundum atrial septal defects (ASD-OS).

Background: Device catheter implantation has become the method of choice for most patients with ASD-OS. No single device has proven to be ideal for this type of procedure.

Fetal interventions for congenital heart disease in Brazil.

Fetal interventions have been performed for some congenital heart diseases. However, these procedures have not gained wide acceptance due to concerns about their efficacy and safety. The aim of this study was to report on a preliminary experience with fetal cardiac interventions in Brazil.

Percutaneous versus surgical closure of atrial septal defects in children and adolescents.

Background: There is a scarcity of data comparing percutaneous and surgical closure of the secundum atrial septal defect (ASD).

Objectives: Assessment of safety and efficacy of both methods of treatment in a referral center affiliated with the Ministry of Health.

Methods: Observational, prospective, non-randomized study of two cohorts of children and adolescents younger than 14 years, treated by catheterization or surgery.