Successful treatment of atrial flutter with synchronized electrical cardioversion in a premature infant with atrial septal aneurysm / 中华围产医学杂志

ABSTRACT

This is a case report of the diagnosis and treatment of atrial flutter with atrial septal aneurysm in a preterm infant. A male neonate born at 35 +2 weeks was delivered by emergent cesarean section due to fetal tachycardia (230-240 bpm) observed during electronic fetal monitoring. The baby was admitted due to tachycardia, tachypnea, and grunting for 15 min after birth. The electrocardiogram demonstrated atrial flutter with the atrial rate of 440 bpm and the ventricular rate of 220 bpm, and 2∶1 atrioventricular conduction. The echocardiography revealed atrial septal aneurysm, patent ductus arteriosus, and patent foramen ovale. Cedilanid and amiodarone were administered firstly. The sinus rhythm was restored after synchronized electrical cardioversion with 4 J (1.8 J/kg). There was no recurrence of atrial flutter during follow-ups till December 18, 2019, with a corrected gestational age of 41 +4 weeks.