[HTML][HTML] High preoperative serum syndecan-1, a marker of endothelial glycocalyx degradation, and severe acute kidney injury after valvular heart surgery

HB Kim, S Soh, YL Kwak, JC Bae, SH Kang… - Journal of clinical …, 2020 - mdpi.com
HB Kim, S Soh, YL Kwak, JC Bae, SH Kang, JW Song
Journal of clinical medicine, 2020mdpi.com
Degradation of endothelial glycocalyx (EG) is associated with inflammation and endothelial
dysfunction, which may contribute to the development of acute kidney injury (AKI). We
investigated the association between a marker of EG degradation and AKI after valvular
heart surgery. Serum syndecan-1 concentrations were measured at induction of anesthesia
and discontinuation of cardiopulmonary bypass in 250 patients. Severe AKI was defined as
Kidney Disease: Improving Global Outcomes Criteria Stage 2 or 3. Severe AKI occurred in …
Degradation of endothelial glycocalyx (EG) is associated with inflammation and endothelial dysfunction, which may contribute to the development of acute kidney injury (AKI). We investigated the association between a marker of EG degradation and AKI after valvular heart surgery. Serum syndecan-1 concentrations were measured at induction of anesthesia and discontinuation of cardiopulmonary bypass in 250 patients. Severe AKI was defined as Kidney Disease: Improving Global Outcomes Criteria Stage 2 or 3. Severe AKI occurred in 13 patients (5%). Receiver operating characteristic analysis of preoperative syndecan-1 to predict severe AKI showed area under curve of 0.714 (95% confidence interval (CI), 0.575–0.853; p = 0.009). The optimal cut-off value was 90 ng/mL, with a sensitivity of 61.5% and specificity of 78.5%. In multivariable analysis, both preoperative syndecan-1 ≥ 90 ng/mL and Cleveland Clinic Foundation score independently predicted severe AKI. Severe tricuspid regurgitation was more frequent (42.4% vs. 17.8%, p < 0.001), and baseline right ventricular systolic pressure (41 (33–51) mmHg vs. 33 (27–43) mmHg, p = 0.001) and TNF-α (1.85 (1.37–2.43) pg/mL vs. 1.45 (1.14–1.92) pg/mL, p <0.001) were higher in patients with high preoperative syndecan-1. Patients with high preoperative syndecan-1 had longer hospital stay (16 (12–24) days vs. 13 (11–17) days, p = 0.001). In conclusion, a high preoperative syndecan-1 concentration greater than 90 ng/mL was able to predict severe AKI after valvular heart surgery and was associated with prolonged hospitalization.
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