{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T12:20:57Z","timestamp":1777724457285,"version":"3.51.4"},"reference-count":44,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2024,1,4]],"date-time":"2024-01-04T00:00:00Z","timestamp":1704326400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Investigative Medicine"],"published-print":{"date-parts":[[2024,2]]},"abstract":"<jats:p>Idiopathic atrioventricular block (iCAVB) is the most common reason for the need for a permanent pacemaker in the elderly population. The fibrotic process that occurs in the conduction system of the heart with aging is the main pathogenesis in the development of iCAVB. However, the processes that trigger the development of iCAVB in the elderly population have not been fully elucidated. In this study, we aimed to reveal the possible relationship between the endothelial glycocalyx (EG) layer and idiopathic complete atrioventricular block. A group of 68 consecutive patients who developed iCAVB and a group of 68 healthy subjects matched for age, sex, and cardiovascular risk factors were included in the study. The groups were compared for clinical, laboratory, and levels of Syndecan-1 (SDC1), an EG layer marker. In the study, SDC1 levels were found to be significantly higher in the iCAVB group compared to the control group (23.7\u2009\u00b1\u20097.5 vs 16.7\u2009\u00b1\u20095.2; p\u2009=\u20090.009). In multivariable regression analysis, SDC1 was determined as an independent potential predictor for iCAVB (OR: 1.200; 95% CI: 1.119\u20131.287; p\u2009&lt;\u20090.001). In the receiver operating characteristic curve analysis, SDC1 predicted iCAVB with 74% sensitivity and 72% specificity at the best cut-off value of 18.5\u2009ng\/mL (area under the curve: 0.777; confidence interval: 0.698\u20130.856; p\u2009&lt;\u20090.001). Disruption of the endothelial glycolic layer may be one of the main triggering factors for the process leading to iCAVB.<\/jats:p>","DOI":"10.1177\/10815589231222239","type":"journal-article","created":{"date-parts":[[2023,12,15]],"date-time":"2023-12-15T23:34:35Z","timestamp":1702683275000},"page":"233-241","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Disruption of the endothelial glycocalyx layer is associated with idiopathic complete atrioventricular block in the elderly population: An observational pilot study"],"prefix":"10.1177","volume":"72","author":[{"given":"Kenan","family":"Toprak","sequence":"first","affiliation":[{"name":"Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mustafa","family":"Kaplangoray","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Faculty of 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