ArticleTurkish journal of surgery2026
Alterations in endothelial activation biomarkers ICAM-1 and VCAM-1 following mitral regurgitation surgery.
Article in Turkish journal of surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Severe chronic degenerative mitral regurgitation (MR) is characterised by altered hemodynamics and high-shear stress, which initiate left ventricular (LV) remodelling, including upregulation of various cytokines. We evaluated endothelial activation during surgical correction of chronic MR by assessing adhesion molecules ICAM-1 and VCAM-1, classic markers of inflammation, and their association with postsurgical LV dysfunction (LVD). Material and Methods: The study included asymptomatic patients with grade 3-4 degenerative MR. Transthoracic echocardiography data and blood samples were collected before and five days after surgical correction of MR. Circulating levels of adhesion molecules were measured by ELISA. Results: Ejection fraction, end-diastolic diameter (EDD), and volume all decreased significantly after surgery. A significant decline in ICAM-1 concentration was observed between the two periods (457.11±256.12 vs. 240.29±157.14 ng/mL; p=0.031), whereas VCAM-1 levels did not change significantly. Leukocyte count and C-reactive protein were significantly higher in the postoperative period. Early postoperative LVD (in 35.7% of patients) was not correlated with adhesion molecule levels. However, we observed significant changes in ICAM-1 levels associated with postoperative EDD >5.6 cm, which indicates LV dilatation. These patients had markedly lower preoperative and postoperative ICAM-1 values than others. Conclusion: Serum ICAM-1 levels significantly decline following surgical correction of MR and are associated with postoperative enlargement of the LV. Our study highlights dynamic changes in endothelial activity and underscores the need for a better understanding of this process in MR.
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