An unusual cause of variable paced QRS complexes in a child with heart failure

• Christopher Johnsrude,
• Soham Dasgupta

Affiliations

Christopher Johnsrude

Division of Pediatric Cardiology, Department of Pediatrics, Norton Children's Hospital, University of Louisville School of Medicine, Louisville, KY, USA

Soham Dasgupta

Corresponding author. Division of Pediatric Cardiology, Department of Pediatrics, 231 E Chestnut Street, Louisville, KY, 40202, USA.; Division of Pediatric Cardiology, Department of Pediatrics, Norton Children's Hospital, University of Louisville School of Medicine, Louisville, KY, USA