Hypoxic Spell After Abdominal Surgery in Tetralogy of Fallot Patient: From Being Asymptomatic to Symptomatic

Tetralogy of Fallot is a cyanotic congenital heart disease involving hypoxic episodes. We herein present a case of a patient who underwent the Duhamel operation for Hirschsprung’s disease. The patient had hypoxic seizure triggered by surgical stimulation, anesthesia effect, and postoperative agitation and was diagnosed with Tetralogy of Fallot via echocardiography postoperatively.