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Nitroprusside and epinephrine for treatment of low output in children after open-heart surgery

G Benzing, J A Helmsworth, J T Schreiber

    The Annals of Thoracic Surgery
    |June 1, 1979
    PubMed

    Insights

    Sodium nitroprusside and epinephrine effectively treat low cardiac output in children post-intracardiac surgery. Combining these drugs improves cardiac index and offers short-term hemodynamic support.

    Area of Science:

    • Pediatric Cardiology
    • Cardiovascular Surgery
    • Pharmacology

    Background:

    • Low cardiac output state is a critical complication after intracardiac operations in children.
    • Identifying effective treatments for this condition is essential for patient outcomes.

    Purpose of the Study:

    • To evaluate the acute hemodynamic effects of sodium nitroprusside and epinephrine in children experiencing a low output state post-intracardiac operation.

    Main Methods:

    • Studied 13 pediatric patients with a cardiac index < 2.0 L/min/m2 after cardiopulmonary bypass.
    • Administered sodium nitroprusside and epinephrine to assess hemodynamic changes.
    • Monitored cardiac index and systemic vascular resistance.

    Main Results:

    • Sodium nitroprusside increased cardiac output and decreased systemic vascular resistance, but cardiac index remained low.
    • Epinephrine further significantly increased cardiac index without altering systemic resistance.
    • Combined therapy showed short-term benefits in improving cardiac output.

    Conclusions:

    • Simultaneous use of sodium nitroprusside (vasodilator) and epinephrine (positive inotropic agent) is beneficial for short-term management of low cardiac output in selected pediatric patients.
    • This combination therapy offers a viable strategy for hemodynamic support after intracardiac surgery.
    • Further research may explore long-term efficacy and safety.

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