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Updated: Jun 6, 2026

Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
[Thromboxane-prostacyclin balance and platelet aggregability in patients with minor cardiac abnormalities]
Aim:
To reveal changes in the thromboxane-prostacyclin balance and platelet aggregability in patients with various variants of minor cardiac abnormalities.
Subjects And Methods:
Six-five patients (mean age 23.0 +/- 0.7 years) with minor cardiac abnormalities and 10 apparently healthy individuals were examined. Platelet aggregation induced by adrenaline, adenosine diphosphate, collagen) and the plasma levels of thromboxane B2 (TxB) and 6-keto-prostaglandin F1alpha (6-keto-PGF1alpha) were determined.
Results:
Patients with abnormally located chordae (ALC) were found to have no deviations in the thromboxane-prostacyclin balance and platelet aggregability. Only decreased collagen aggregation was recorded in the groups of first-degree mitral prolapse (MP) and first-degree MP + ALC; in second-degree MP and second-degree MP + ALC, there was a reduction in platelet aggregation on all inductors and an increase in TxB2. Patients with myxomatous degeneration of the mitral valve exhibited reduced collagen-induced platelet aggregation and lower plasma 6-keto-PGF1alpha levels.
Conclusion:
The most pronounced changes in the thromboxane-prostacyclin balance and platelet aggregability were found in patients with MP and second-degree regurgitation, three intracardiac micro-abnormalities, and myxomatous degeneration of the mitral valve.
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