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Anaemia and surgery.

J N Lunn, P C Elwood

    British Medical Journal
    |July 11, 1970
    PubMed
    Summary

    Preoperative hemoglobin levels in 1,584 patients were associated with surgical outcomes. In men, lower hemoglobin correlated with longer hospital stays, complications, and death, but in women, only with death.

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    Area of Science:

    • Anesthesiology
    • Clinical Medicine
    • Hematology

    Background:

    • Preoperative hemoglobin levels are routinely measured before surgical procedures.
    • The association between hemoglobin levels and postoperative outcomes requires further clarification.

    Purpose of the Study:

    • To examine the association between preoperative circulating hemoglobin levels and postoperative course in patients undergoing anesthesia.
    • To investigate potential sex-based differences in this association.

    Main Methods:

    • Retrospective analysis of data from 1,584 patients who received anesthesia.
    • Assessment of correlations between hemoglobin levels and length of hospital stay, occurrence of complications, and mortality.

    Main Results:

    • A significant association (P<0.05) between hemoglobin level and postoperative course (hospital stay, complications, death) was observed in men.
    • In women, a significant association was found only for death.

    Conclusions:

    • The findings suggest that preoperative hemoglobin level may reflect the severity of the underlying condition necessitating surgery.
    • Further research, such as a randomized clinical trial, is needed to test whether anemia poses an additional surgical risk.

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