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Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
Evaluation of platelet function in dogs with cardiac disease using the PFA-100 platelet function analyzer
Noel Clancey1, Shelley Burton, Barbara Horney
1Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PEI, Canada. n.clancey@groupwise.upei.ca
Veterinary Clinical Pathology
|April 28, 2009
Summary
Cardiac disease in dogs significantly prolongs platelet closure time (CT), indicating impaired platelet function. The PFA-100 analyzer effectively detects these defects in dogs with murmurs, aiding in diagnosis.
Area of Science:
- Veterinary Cardiology
- Hematology
- Canine Health
Background:
- Cardiac disease can alter platelet function in dogs.
- Evaluating platelet function in various breeds and cardiac conditions is crucial.
- The PFA-100 analyzer offers a method for assessing platelet function.
Purpose of the Study:
- To compare platelet closure times (CT) in dogs with cardiac murmurs to healthy controls.
- To investigate the impact of specific cardiac conditions on platelet function.
Main Methods:
- Echocardiography was used to identify 39 dogs with cardiac murmurs and turbulent blood flow.
- Dogs were categorized into atrioventricular valvular insufficiency (n=23) and subaortic stenosis (n=9) groups.
- Fifty-eight healthy dogs served as controls; closure times were measured using a PFA-100 analyzer with collagen/ADP cartridges.
Main Results:
- Dogs with cardiac murmurs exhibited significantly prolonged CTs compared to healthy controls (P<.01).
- Valvular insufficiency group: mean CT 81.9±26.3 seconds.
- Subaortic stenosis group: mean CT 71.4±16.5 seconds.
Conclusions:
- The PFA-100 analyzer is valuable for detecting platelet function defects in dogs with cardiac murmurs.
- Platelet hypofunction is notably associated with mitral/tricuspid valvular insufficiency and subaortic stenosis.
- The specific type of turbulent blood flow did not appear to significantly influence platelet hypofunction.
