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Do patients with epistaxis have drug-induced platelet dysfunction?
J R Livesey1, M G Watson, P J Kelly
1Department of Otolaryngology, Freeman Hospital, Newcastle-upon-Tyne, UK.
Clinical Otolaryngology and Allied Sciences
|October 1, 1995
Summary
Non-steroidal anti-inflammatory drugs (NSAID) significantly increase epistaxis risk in older adults. NSAID use impairs platelet function, contributing to nosebleeds and requiring consideration in treatment strategies.
Area of Science:
- Internal Medicine
- Pharmacology
- Hematology
Background:
- Increasing use of non-steroidal anti-inflammatory drugs (NSAID) globally.
- Established link between NSAID use and epistaxis in individuals over 50.
- Need to understand the specific mechanisms linking NSAID to epistaxis.
Purpose of the Study:
- To compare NSAID intake and platelet function in patients with epistaxis versus controls.
- To investigate the role of NSAID-induced platelet dysfunction in the etiology of epistaxis.
Main Methods:
- Prospective study design involving 50 patients with epistaxis and 50 controls.
- Measurement of standard hematological parameters.
- Assessment of platelet aggregation response to collagen and arachidonic acid, and adenosine triphosphate release.
Main Results:
- Patients with epistaxis demonstrated significantly higher NSAID intake (P < 0.01).
- Hypertension was also significantly more prevalent in the epistaxis group (P < 0.01).
- A significant reduction in platelet aggregation to collagen was observed in patients (P = 0.025).
Conclusions:
- Non-steroidal anti-inflammatory drugs induce significant platelet dysfunction.
- This dysfunction is a crucial factor in the multifactorial causes of epistaxis.
- Clinical consideration of NSAID use is vital in managing epistaxis, especially in older populations.