Inflammatory Cytokines Differ Between Patients with High Versus Low CHA2DS2-VASc Scores in Sinus Rhythm-a Possible Mechanism for Adverse Cardiovascular Events

Overview

Journal Int J Cardiol Cardiovasc Risk Prev

Specialty Cardiology & Vascular Diseases

Date 2022 Dec 27

PMID 36573192

Authors

Avishag Laish-Farkash

Ziv Sevilya

Olga Perelshtein Brezinov

Lior Fortis

Eli Lev

Affiliations

Soon will be listed here.

Abstract

Background: The CHADS-VASc score was shown to predict systemic thromboembolism and mortality in certain groups of patients in sinus rhythm (SR). Previous data showed that patients in SR with high CHADS-VASc score have higher plasma levels of inflammatory markers such as sP-selectin and -reactive protein. We further investigated this group.

Methods: Blood samples were collected from consecutive patients in SR. Plasma was extracted and stored at -80 °C. Concentrations of a panel of soluble markers IL-1β, IL-6, IL-8, IL-10, TNF-α and VEGF were measured by Magnetic Luminex Performance Assay. The PLF4 cytokine blood level was measured by ELISA.

Results: 66 patients were enrolled (age 53 ± 18 years, 60% women). Patients with high CHADS-VASc scores (n = 23) had significantly higher median IQR concentrations of TNF-α [10.34 (8.55,14.92) vs. 7.69 (6.06, 9.85) pg/ml, p = 0.009] and a trend towards higher levels of IL-1β [0.59 (0.4,0.8) vs. 0.44 (0.31, 0.62) pg/ml, p = 0.07] and IL-8 [5.92 (4.5,9.4) vs. 5.04 (3.63, 6.04) pg/ml, p = 0.07], compared to the group with low scores (n = 43). Median IQR concentrations of VEGF, IL-6, IL-10 and PF4 did not significantly differ between the CHADS-VASc score groups.

Conclusion: Patients in SR with high versus low CHADS-VASc scores have high plasma concentrations of systemic inflammation cytokines. The already proven high levels of sP-selectin, that promotes release of inflammatory cytokines from leukocytes, is in line with these results. This pro-inflammatory state in patients with high CHADS-VASc scores, may explain the higher rate of adverse cardiovascular events associated with elevated CHADS-VASc score even without atrial fibrillation.

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