Landiolol for junctional ectopic tachycardia refractory to amiodarone after pediatric cardiac surgery

Area of Science:

• Pediatric Cardiology
• Cardiac Surgery
• Clinical Pharmacology

Background:

• Postoperative junctional ectopic tachycardia (JET) is a significant complication in pediatric cardiac surgery.
• JET can lead to severe hemodynamic instability, morbidity, and mortality in infants.
• Standard antiarrhythmic therapies may be ineffective in refractory cases.

Observation:

• A 3-month-old infant developed refractory JET post-ventricular septal defect closure and right pulmonary artery plasty.
• The infant experienced severe hypotension requiring cardiac massage despite amiodarone treatment.
• Poor left ventricular function complicated the postoperative course.

Findings:

• Continuous intravenous infusion of low-dose landiolol was administered.
• Landiolol rapidly reduced the JET rate and restored sinus rhythm.
• Hemodynamic stability was achieved following landiolol therapy.

Implications:

• Landiolol represents a potential therapeutic option for refractory postoperative JET in pediatric cardiac surgery patients.
• This case highlights the efficacy of landiolol in managing severe arrhythmias in infants with compromised cardiac function.
• Further research into landiolol's role in pediatric cardiac critical care is warranted.