P005 CHILDREN WITH REPAIRED COARCTATION OF THE AORTA: FOLLOW-UP AND HYPERTENSIO5

Background and objective: Coarctation of the aorta (CoA) is a congenital heart disease with high morbidity and mortality due to cardiovascular disease even after adequate therapeutic management. A fundamental factor is the development of high blood pressure over the years. The objective of this work is to analyze the blood pressure phenotype of the population under follow-up in a high blood pressure clinic. Methods: Retrospective review of medical records of patients aged 0 to 22 years with CoA corrected by surgery or interventional catheterizations, which were followed up between January 2017 and February 2023 in the high blood pressure clinic of a pediatric center. Variables to analyze: age at the time of correction, technique, time since correction, associated cardiac or extracardiac pathologies, office blood pressure, left ventricular hypertrophy. In patients with adequate height and tolerance to the procedure: Ambulatory Blood Pressure Monitoring (ABPM) and pulse wave velocity study were performed. Results: 142 medical records were reviewed (see table 1). Two groups were formed according to the age of the patients due to the possibility of performing ABPM. There were no significant differences between the age of surgical approach and the association with complex heart diseases between the groups. The younger population presented a greater number of extended terminal anastomosis technique and increased concentric remodeling. The prevalence of hypertension and overweight obesity increased over the years. The older group had 25% masked hypertension and 25% increased pulse wave velocity Conclusion: Our population has 28% of hypertension among those under 8 years of age and it increases to 46% among the eldest, coinciding with international reports that indicate that the evolution towards arterial hypertension in this population is progressive. Lifelong follow-up of these patients with corrected CoA is important to detect recoarctation or the development of hypertension and act accordingly to improve morbidity and mortality.