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Related Experiment Videos

Platelet function tests during major operation for gastro-intestinal carcinoma

J A Kokores, T C Economopoulos, C Alexopoulos

    The British Journal of Surgery
    |February 1, 1977
    PubMed
    Summary

    Major surgery and anesthesia impair platelet function, increasing bleeding time. Platelet aggregation and retention decrease during and after operations, indicating heightened bleeding risk in surgical patients.

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    Area of Science:

    • Anesthesiology
    • Hematology
    • Surgical Medicine

    Background:

    • Platelet dysfunction can increase surgical bleeding risk.
    • Understanding perioperative hemostatic changes is crucial for patient safety.

    Purpose of the Study:

    • To evaluate the impact of major operations and anesthesia on platelet function.
    • To assess changes in platelet aggregation and bleeding time during the perioperative period.

    Main Methods:

    • Platelet function tests were conducted on 15 patients.
    • Tests included platelet retention, collagen-induced aggregation, ADP-induced aggregation, and adrenaline-induced aggregation.
    • Measurements were taken preoperatively, during anesthesia, and at 30 minutes and 3 hours postoperatively.

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    Main Results:

    • Anesthesia caused slight reductions in platelet retention and aggregation.
    • During surgery, bleeding time and collagen-induced aggregation delay progressively increased.
    • ADP- and adrenaline-induced aggregation significantly decreased during the operation.

    Conclusions:

    • Major operations and anesthesia significantly impair platelet function.
    • These alterations in platelet behavior may contribute to increased bleeding risk during and after surgery.