Heparin bleeding due to qualitative platelet dysfunction.

Area of Science:

• Hematology
• Pharmacology

Background:

• Thromboembolic disease necessitates anticoagulant therapy, commonly with heparin.
• Heparin is known to affect coagulation and platelet function.

Observation:

• A 26-year-old woman experienced arterial bleeding during heparin therapy for thromboembolic disease.
• Bleeding recurred upon re-administration of heparin two years later.

Findings:

• Bleeding time was prolonged in the patient when she was ill and receiving heparin.
• The patient's bleeding episodes correlated with heparin administration, suggesting a drug-induced effect.

Implications:

• Heparin may induce bleeding through qualitative platelet dysfunction.
• Further investigation into heparin's effects on platelet function is warranted.
• This finding may inform clinical management of patients on heparin therapy.