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Related Experiment Videos

Heparin via the lung.

C J Wright, L B Jaques

    Canadian Journal of Surgery. Journal Canadien De Chirurgie
    |July 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Intrapulmonary heparin administration in dogs prolonged clotting time but showed no other significant hemodynamic or metabolic effects. Further research is needed before clinical use for thromboembolic disease management.

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    Area of Science:

    • Pharmacology
    • Pulmonary Medicine
    • Hematology

    Background:

    • Heparin absorption following lung administration is a recent discovery.
    • Intrapulmonary heparin can induce moderate hypocoagulability in various species, including humans.
    • This study investigates the effects of intrapulmonary heparin administration.

    Purpose of the Study:

    • To evaluate the hemodynamic and metabolic effects of intrapulmonary heparin in dogs.
    • To assess the duration and extent of hypocoagulability induced by intrapulmonary heparin.
    • To determine the potential clinical relevance of intrapulmonary heparin for thromboembolic disease.

    Main Methods:

    • 1500 units/kg body weight of heparin was instilled into the lungs of 12 dogs.
    • A control group of 10 dogs received an equal volume of saline.

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  • Hemodynamic and metabolic measurements were taken at regular intervals.

    • Main Results:

    • A prolonged, moderate increase in clotting time was observed, as expected.
    • No significant effects on other measured hemodynamic or metabolic parameters were detected.
    • The hypocoagulability effect's duration and magnitude require further investigation.

    Conclusions:

    • Intrapulmonary heparin administration in dogs primarily affects clotting time.
    • Significant clinical applications require further research and validation.
    • Heparin delivered via the lung shows potential for managing thromboembolic disorders.