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Platelet dysfunction associated with abdominal aortic aneurysm

L S Fouser, N E Morrow, R B Davis

    American Journal of Clinical Pathology
    |November 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

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    This study reports a rare case of acquired platelet dysfunction associated with an abdominal aortic aneurysm. The patient experienced bleeding due to impaired platelet aggregation, a condition not previously linked to arterial aneurysms.

    Area of Science:

    • Hematology
    • Vascular Surgery
    • Internal Medicine

    Background:

    • Acquired platelet dysfunction can manifest as spontaneous bleeding or prolonged post-traumatic hemorrhage.
    • Abdominal aortic aneurysms are associated with various complications, but their link to platelet dysfunction is not well-established.

    Observation:

    • An 82-year-old male presented with a history of bleeding and a pulsatile abdominal mass.
    • Ultrasound revealed a large abdominal aortic aneurysm containing an intraluminal thrombus.
    • Laboratory findings included intravascular hemolysis, disseminated intravascular coagulation, and prolonged bleeding time.

    Findings:

    • Platelet function tests showed significantly reduced glass bead retention and impaired aggregation responses to common agonists (ADP, epinephrine, collagen).

    Related Experiment Videos

  • Platelet factor 3 availability, antiplatelet antibodies, and ristocetin aggregation were normal, suggesting a specific defect.
  • Platelet transfusions did not correct the prolonged bleeding time, indicating the dysfunction was intrinsic to the patient's platelets.

    • Implications:

    • This case highlights a potential novel association between abdominal aortic aneurysms and acquired platelet dysfunction.
    • Understanding this relationship may improve diagnostic and therapeutic strategies for patients with bleeding complications and arterial aneurysms.
    • Further research is warranted to elucidate the mechanisms underlying platelet dysfunction in the context of arterial aneurysms.