[Enoximone and pediatric heart surgery]

Area of Science:

• Pediatric Cardiology
• Cardiovascular Pharmacology
• Critical Care Medicine

Background:

• Enoximone, with dual inotropic and vasodilator actions, is established in adult cardiac surgery.
• Its efficacy and safety in pediatric cardiac surgery remain largely undocumented.
• Right heart malformations present unique challenges in pediatric cardiac care.

Purpose of the Study:

• To evaluate the hemodynamic effects of enoximone in pediatric patients undergoing cardiac surgery.
• To assess enoximone's utility as a bridge to cardiac transplantation.
• To determine enoximone's role in managing right heart failure with pulmonary hypertension.

Main Methods:

• Retrospective study of 15 pediatric patients with right heart malformations or awaiting transplantation.
• Enoximone administered via IV bolus followed by continuous infusion.
• Co-administration with dobutamine or dopamine in some patients.

Main Results:

• Improved hemodynamic status, including enhanced left ventricular contractility and stable right heart filling pressures.
• Moderate, statistically significant increase in mean blood pressure without tachycardia.
• Enhanced systemic perfusion in patients awaiting transplantation.
• Effective management of right heart failure with pulmonary hypertension when combined with pulmonary vasodilators.

Conclusions:

• Enoximone is a valuable therapeutic option in perioperative and postoperative pediatric intensive care.
• Its synergistic effects allow for reduced dosages of conventional inotropic agents, mitigating catecholamine-induced exhaustion.
• Enoximone facilitates successful cardiac transplantation by improving patient condition.