Mid-Term Electrical Remodeling after Percutaneous Atrial Septal Defect Closure with GCO Device in a Pediatric Population.

Background And Aim: The GORE CARDIOFORM (GCO) septal occluder is an atrial septal defect/patent foramen ovale closure device with theoretical advantages over other commercialized devices thanks to its softness and anatomical compliance. Our aim was to evaluate the short- and medium-term electrocardiographic changes after percutaneous ASD closure with GCO in a pediatric population.

Methods: We enrolled 39 patients with isolated ASD submitted to trans-catheter closure from January 2020 to June 2021.

Tachyarrhythmia after the total cavopulmonary connection: incidence, prognosis, and risk factors.

Objective: The purpose of this study is to evaluate the incidence and outcomes regarding tachyarrhythmia in patients after total cavopulmonary connection.

Methods: A retrospective analysis of 620 patients who underwent total cavopulmonary connection between 1994 and 2021 at our institution was performed. Incidence of tachyarrhythmia was depicted, and results after onset of tachyarrhythmia were evaluated.

Development of Weight and Height Age z-Score after Total Cavopulmonary Connection.

Objective:  We aimed to analyze somatic growth of patients after total cavopulmonary connection (TCPC) as well as to identify factors influencing postoperative catch-up growth.

Methods:  A total of 309 patients undergoing TCPC at 4 years old or less between 1994 and 2021 were included. Weight for age z-score (WAZ) and height for age-z-score (HAZ) at TCPC and at postoperative time between 1 and 3 years were calculated.

Brady-arrhythmias requiring permanent pacemaker implantation during and after staged Fontan palliation.

Background: Brady-arrhythmia requiring pacemaker implantation remains one of the Fontan-specific complications before and after total cavopulmonary connection.

Methods: A retrospective analysis of 620 patients who underwent total cavopulmonary connection between 1994 and 2021 was performed to evaluate the incidence of brady-arrhythmia and the outcomes after pacemaker implantation. Factors associated with the onset of brady-arrhythmia were identified.

Rescue atrial septal defect closure with the new GORE cardioform atrial septal defect occluder.

Atrioventricular block (AVB) is an infrequent but life-threatening complication of transcatheter closure of atrial septal defect (ASD), accounting for 0.1%-6.2% of cases in large series.