Decreased platelet activation and endothelial dysfunction after percutaneous mitral balloon valvuloplasty
Küçük Resim Yok
Tarih
2003
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Ireland Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Objective: This study was conducted to assess the changes in platelet activation and endothelial dysfunction in patients with mitral stenosis (MS) and sinus rhythm (SR) following percutaneous mitral balloon valvuloplasty (PMBV). Background: Systemic thromboembolism is a serious complication in patients with valvular heart disease, and its incidence is highest in those with mitral stenosis. A hypercoagulable state has also been reported in patients with mitral stenosis and sinus rhythm. A recent study has shown that patients with previous PMBV had a lower incidence of thromboembolism. Methods and results: The study was conducted in 21 patients (two men, 19 women, mean age=34+/-6 years) with mitral stenosis and sinus rhythm (SR) who underwent percutaneous mitral balloon valvuloplasty and 17 healthy control subjects (two men, 15 women, mean age=33+/-6 years). Biochemical markers of platelet activity (beta thromboglobulin, BTG, and soluble P-selectin, sPsel) and endothelial dysfunction (von Willebrand Factor, vWF) were measured in both control subjects' and patients' serum samples taken immediately before PMBV and 24 h after PMBV procedure. All patients underwent successful PMBV Significant improvement of mitral valve area, pulmonary artery pressure, mean mitral gradients, and left atrial diameter were achieved in all patients after PMBV Compared with control subjects, patients with MS had higher plasma levels of BTG (66+/-26 ng/ml vs. 14+/-6 ng/ml, P<0.001), vWF (177+/-67 units/dl vs. 99+/-37 units/dl, P<0.0001), sPsel (226+/-74 ng/ml vs. 155+/-66 ng/ml, P<0.001). There was a significant reduction of plasma levels of BTG (66 +/- 26 ng/ml vs. 48 +/- 20 ng/ml, P=0.002), vWF (177 +/- 67 units/dl vs. 134 +/- 60 units/dl, P=0.001) and P-selectin (226 +/- 74 ng/ml vs. 173 +/- 71 ng/ml, P=0.008,) 24 h after PMBV Conclusion: We have shown that patients with severe MS and SR have increased platelet activation and endothelial dysfunction compared with control subjects and PMBV results in decreased platelet activity and improvement of endothelial injury. (c) 2003 Elsevier Ireland Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
endothelial dysfunction, platelet activation, mitral stenosis, mitral balloon valvuloplasty
Kaynak
International Journal of Cardiology
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
91
Sayı
2-3
