Dr. Sarah E. Perkins has joined Maywood-based Loyola University Health System as a pediatric cardiologist. She also is an assistant professor in the Department of Pediatrics at Loyola University Chicago Stritch School of Medicine. Perkins will work with Loyola's Maternal Fetal Medicine Division to help care for prenatal patients with heart problems. Perkins earned her medical degree at Washington University School of Medicine in St. Louis, Mo. She completed a residency in pediatrics and a fellowship in pediatric cardiology at Lurie Children's Hospital of Chicago.