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Hyperpotassemia during massive blood transfusions.

K Linko, I Tigerstedt

    Acta Anaesthesiologica Scandinavica
    |April 1, 1984
    PubMed
    Summary

    Massive blood transfusions can cause dangerous hyperkalemia (high potassium levels) in patients. This condition, linked to transfusion speed, can lead to cardiac arrest, requiring prompt medical intervention.

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    Area of Science:

    • Transfusion Medicine
    • Critical Care Medicine
    • Cardiology

    Background:

    • Rapid transfusion of large blood volumes is a critical intervention in trauma and surgery.
    • Potential complications, such as electrolyte imbalances, require careful monitoring.

    Purpose of the Study:

    • To investigate the incidence and clinical significance of hyperkalemia in massively transfused patients.
    • To determine the relationship between transfusion rate and serum potassium levels.

    Main Methods:

    • Prospective observational study of 21 patients receiving >10 units of whole blood.
    • Monitoring of serum potassium levels during and after rapid transfusion.
    • Correlation analysis between transfusion rate and potassium increase.

    Main Results:

    • Eleven of 21 patients (52%) developed hyperkalemia.
    • Serum potassium increase correlated significantly with transfusion rate (r=0.74).
    • Three hyperkalemic patients experienced cardiac arrest; normokalemic patients had no severe arrhythmias.

    Conclusions:

    • Transient hyperkalemia is common in massively transfused patients.
    • The rate of transfusion is a key factor in developing hyperkalemia.
    • Hyperkalemia in this setting poses a significant risk for cardiac complications.

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