Marcelo Ribeiro is a highly specialized cardiologist with extensive experience in interventional cardiology for congenital heart diseases. Since May 2011, Marcelo has held dual roles at HCor as both an interventional cardiologist and an intensivist in pediatric cardiac postoperative care. Marcelo also practices at Grupo NotreDame Intermédica, with a focus on congenital heart conditions, and operates a private clinic specializing in pediatric cardiology and hemodynamics since January 2016. Marcelo has been affiliated with Hospital Samaritano and Instituto Dante Pazzanese de Cardiologia, contributing to pediatric interventional cardiology and intensive care in cardiac postoperative settings since 2013 and September 2010, respectively. Marcelo's educational background includes a medical degree from Universidade Federal de Minas Gerais and specialized training in pediatric cardiology and interventional cardiology at prestigious institutions such as Instituto do Coração da Universidade de São Paulo and Instituto Dante Pazzanese de Cardiologia.